The question presented is whether, six years after a final divorce decree and adjudication of paternity, a father may disavow a child born during the marriage and presumed for fourteen years to have been his. We hold that he may not.
The family court denied plaintiff Mark Godin’s motion to require genetic testing to determine the paternity of Christina, the child born while he was married to his former wife Rita Godin, and dismissed his complaint seeking to set aside a child support order. Plaintiff contends the court erred in concluding that the adjudication of paternity implicit in the final divorce decree was res judicata and barred relitigation. We affirm.1
The material facts are largely undisputed. Mother and plaintiff shared a sexually intimate relationship in Vermont during the Summer of 1981, while plaintiff was on leave from military service. On July 15, plaintiff returned to his station in South Carolina. Subsequently, mother told plaintiff she was pregnant when he returned to Vermont in November, and they were married in December 1981. Mother gave birth to Christina on May 18, 1982. Mother filed for divorce in 1989. In her complaint she stated that there was one child, Christina, born of the marriage. A final uncontested divorce hearing *516was held in April 1990, at which both parties were present. The court adopted the parties’ stipulation, and a final order was issued in May 1990. Under the terms of the final divorce order, mother was awarded custody and plaintiff was required to pay child support.
In the Fall of 1996, approximately six years after the divorce became final, rumors within his family led plaintiff to suspect that he was not Christina’s biological father. He then reconsidered his earlier relationship with mother and concluded he must not be the father because ten months had elapsed between Christina’s alleged conception and her birth. As a result, he filed a pro se motion for genetic testing with the family court. The court denied the motion, ruling that the test should have been requested before the divorce became final. Plaintiff then retained counsel and filed a complaint seeking relief from judgment based on fraud upon the court. See V.R.C.P 60(b). As part of this action, plaintiff requested that the court order genetic testing and vacate those provisions of the divorce order referring to him as the father of Christina and requiring him to pay child support.
A hearing was held in March 1997. Plaintiff testified that until the Fall of 1996, he believed Christina was his biological child and treated her as such. He explained that he questioned his paternity only after Christina began asking him if he was her biological father. Mother testified that she was sexually intimate with another man prior to the marriage while plaintiff was in South Carolina. She also testified that when she informed plaintiff that she was pregnant, she “never stated who was the father and who wasn’t.” In addition, she denied ever telling any of plaintiff’s relatives that plaintiff was not Christina’s biological father. Finally, she stated that although she was not opposed to genetic testing, she was concerned about the impact such testing would have on her then fifteen-year-old daughter who “has always thought that [plaintiff] is her father.”
The court appointed a guardian ad litem to represent Christina’s interests, and reset the hearing for April 1, 1997. At the April 1 hearing, plaintiff objected to the intended testimony of the guardian ad litem on grounds that her testimony would relate hearsay evidence and would introduce an irrelevant subject matter, namely, Christina’s feelings about genetic testing. The court declined to hear testimony from the guardian ad litem and held that plaintiff’s request for genetic testing was time-barred. The court reasoned that plaintiff had an opportunity to contest paternity in the original divorce proceeding or on appeal, and that his failure to do so precluded him from challenging paternity at a later date. Accordingly, the court concluded *517that plaintiff’s motion to modify child support, and his independent action of fraud upon the court, were moot. This appeal followed.
Plaintiff contends that mother perpetrated a fraud upon the court during the divorce proceedings by alleging in her complaint that Christina was biologically her husband’s and, because of such fraud, the trial court should set aside any obligation to pay child support.
We agree with the trial court that both of plaintiff’s claims involve the same underlying issue: the conclusiveness of paternity findings and implications in a divorce judgment. We have previously addressed this issue. See Lerman v. Lerman, 148 Vt. 629, 629, 528 A.2d 1121, 1122 (1987) (mem.). In Lerman, we held that a former husband was not entitled to court-ordered genetic testing approximately ten years after his divorce became final. See id. We reasoned that where no issue concerning paternity was raised during a divorce proceeding and no appeal was taken from the divorce action contesting paternity, the doctrine of res judicata precluded a relitigation of paternity. See id. Plaintiff’s appeal implicitly requires us to reconsider our holding in Lerman.
V.R.C.P 60(b) governs the granting of relief from judgment. Rule 60 is “substantially identical” to its federal counterpart, Fed. R. Civ. P 60. See Reporter’s Notes, V.R.C.E 60. Under this rule, a court may grant relief from a final judgment for “newly discovered evidence which by due diligence could not have been discovered in time to move for a new trial under Rule 59(b)” or for “fraud. . . misrepresentation, or other misconduct of an adverse party.” V.R.C.E 60(b)(2), (3). Plaintiff’s claim seems to be premised on two facts: mother’s alleged ten-month gestation period, and another sexual partner. This “newly discovered evidence” and mother’s failure to disclose it before their marriage constitutes the alleged fraud. As expressly stated in the rule, however, a motion for relief from judgment based on either of these grounds must be made within one year after the judgment was entered. Plaintiff filed his motion for relief from judgment approximately six years after the date of the judgment. Thus, he was not entitled to relief under Rule 60(b)(2) or (3).
Apparently realizing that his claim is time-barred and thus not cognizable under the above provisions, plaintiff contends that these subsections are not controlling. Instead, he contends that mother’s alleged fraud was committed “upon the court” and therefore is not subject to the same one year statute of limitations. Based on this characterization, plaintiff’s claim is governed by the catch-all provision of Rule 60(b)(6), which provides that relief may be granted for *518“any other reason justifying relief from the operation of the judgment.” The rule explicitly provides that motions based on the catch-all provision “shall be made within a reasonable time.” V.R.C.E 60(b). The rule also states that there is no limit to “the power of a court to entertain an independent action to relieve a party from a judgment ... or to set aside a judgment for fraud upon the court.” Id.
As we explained in Levinsky v. State, 146 Vt. 316, 318, 503 A.2d 534, 536 (1985), “the independent action clause in Rule 60(b) simply preserves the historical authority of the courts of equity to reform judgments in special circumstances.” (emphasis added) (internal quotation marks omitted). “However, this catch-all provision is available only when a ground justifying relief is not encompassed within any of the first five classes of the rule.” Id. at 317, 503 A.2d at 536 (internal quotation marks omitted).
The first issue, then, is whether the fraud alleged here may properly be characterized as a fraud upon the court and therefore exempt from the one-year statute of limitations. We conclude that to the extent mother’s conduct was fraudulent, if at all, it constituted fraud upon plaintiff, not upon the court. The seminal decision in this area is Hazel-Atlas Glass Co. v. Hartford-Empire Co., 322 U.S. 238 (1944). There, an attorney for the Hartford-Empire Glass Company fabricated an article, claimed it was authored by a former president of the Glass Workers’ Union, and later used the falsified article in a patent case before an appellate court to receive a favorable judgment. The United States Supreme Court characterized the fraud as “a wrong against the institutions set up to protect and safeguard the public,” id. at 246, distinguishing it from the “case of a judgment obtained with the aid of a witness who, on the basis of after-discovered evidence, is believed possibly to have been guilty of perjury.” Id. at 245. The Court described the fraud upon the court by the attorney as “manifestly unconscionable,” id. at 244-45 (internal quotation marks omitted), and “a deliberately planned and carefully executed scheme to defraud not only the Fatent Office but the Circuit Court of Appeals.” Id. at 245-46. This “tampering with the administration of justice,” the Court concluded, justified its exercise of equitable power to set aside the “fraudulently begotten judgment[].” Id.
Since Hazel-Atlas, courts and commentators alike have observed that the fraud-on-the-court doctrine must be narrowly applied, or it would become indistinguishable from ordinary fraud, and undermine the important policy favoring finality of judgments. “If fraud on the *519court were to be given a broad interpretation that encompassed virtually all forms of fraudulent misconduct between the parties, judgments would never be final and the time limitations of Rule 60(b) would be meaningless.” 12 J. Moore, et al., Moore’s Federal Practice ¶ 60.21[4][c], at 60-55 (3d ed. 1997). Thus, the doctrine has generally been reserved for only the most egregious misconduct evidencing, as in Hazel-Atlas, an unconscionable and calculated design to improperly influence the court. See, e.g., Wilson v. Johns-Manville Sales Corp., 873 F.2d 869, 872 (5th Cir. 1989) (fraud on the court requires showing of unconscionable plan or scheme designed to improperly influence court in its decision). As one federal court has explained, the narrow fraud-on-the-court concept should ‘“embrace only that species of fraud which does or attempts to, defile the court itself, or is a fraud perpetrated by officers of the court so that the judicial machinery cannot perform in the usual manner its impartial task of adjudging cases.’” Kerwit Med. Prods., Inc. v. N. & H. Instruments, Inc., 616 F.2d 833, 837 (5th Cir. 1980) (quoting 7 Moore, Federal Practice ¶ 60.33, at 515 (1971 ed.)). As another court has observed: “‘A finding of fraud on the court is justified only by the most egregious misconduct directed to the court itself, such as . . . fabrication of evidence by counsel, and must be supported by clear, unequivocal and convincing evidence.’” Nichols v. Klein Tools, Inc., 949 F.2d 1047, 1048 (8th Cir. 1991) (quoting Pfizer, Inc. v. International Rectifier Corp., 538 F.2d 180, 195 (8th Cir. 1976)).
Judged in the light of this standard, mother’s conduct in this case cannot reasonably be characterized as a fraud on the court. The primary basis of plaintiff’s fraud allegation is mother’s attestation in her divorce complaint that Christina was “born of [the] marriage.”' The wording was not mother’s, but rather was contained in the preprinted complaint form, and merely signified that the child was born while the parties were legally married. From this fact, the law presumes that the parties are the child’s natural parents. See 15 V.S.A. § 308(4) (Cum. Supp. 1998) (alleged parent shall be rebuttably presumed to be natural parent if child is born while husband and wife are legally married); see also Cicero v. Cicero, 395 N.Y.S.2d 117, 117 (App. Div. 1977) (presumption of legitimacy attached to “issue of the marriage”); Orange v. Rose, 295 N.Y.S.2d 782, 783 (App. Div. 1968) (“offspring of the marriage” were entitled to presumption of legitimacy); Best v. L.J.F. Corp., 246 N.Y.S.2d 791, 792 (App. Div. 1964) (issue “born of this marriage” are presumed legitimate). Thus, there was nothing fraudulent about mother’s representation that Christina *520was born of the marriage. The law supplied the presumption that plaintiff was the child’s natural parent; mother did not make that affirmative representation.
The real thrust of plaintiff’s fraud-on-the-court claim is that mother failed to disclose certain facts during the divorce proceedings, namely, that she had sexual relations with another man sometime after plaintiff returned to military duty, and that Christina was born some ten months after plaintiff’s last sexual encounter with mother. As a number of courts have observed, “‘the mere nondisclosure to an adverse party and to the court of facts pertinent to a controversy before the court does not add up to “fraud upon the court” for purposes of vacating a judgment under Rule 60(b).’” Wilson, 873 F.2d at 872 (quoting Kerwit Med. Prods., 616 F.2d at 837). Furthermore, many pregnancies do, in fact, extend longer than the average gestation period, and periods of 42 weeks or longer are not unknown. See 5 Lawyer’s Medical Cyclopedia § 37.2a (R. Patterson ed., 4th ed. 1998) (three percent of women deliver 300 days or more past first day of last menstrual period). Thus, the nondisclosures in this case did not approach the kind of calculated, egregious “defiling” of the adjudicative process that has traditionally characterized fraud on the court. See Great Coastal Express, Inc. v. International Bhd. of Teamsters, 675 F.2d 1349, 1356 (4th Cir. 1982) (fraud on court must “defile the court itself”).
The second and more important issue is whether the facts of this case present “special circumstances” that warrant the exercise of the court’s equitable jurisdiction, despite the lapse of time and despite our previous application of the doctrine of res judicata in Lerman. After all, issues concerning parental rights and responsibilities are of the utmost importance and do not always lend themselves readily to rigid legal rules. We have previously addressed the court’s authority arising from the independent action clause of Rule 60(b):
This power has been and must continue to be exercised guardedly, as it carries with it an inevitable clash of two competing principles of judicial administration: the principle of finality and repose of judgments, which is so fundamental to our system of justice, and the ultimate principle that justice must be done unto the parties.
Levinsky, 146 Vt. at 318, 503 A.2d at 536-37 (internal citations omitted). The essential elements of an independent action under Rule 60(b) are as follows:
*521(1) a judgment which ought not, in equity and good conscience, to be enforced; (2) a good defense to the alleged cause of action on which the judgment is founded; (3) fraud, accident, or mistake which prevented the defendant in the judgment from obtaining the benefit of his defense; (4) the absence of fault or negligence on the part of the defendant; and (5) the absence of any adequate remedy at law.
Id. at 319, 503 A.2d at 537.
Although plaintiff here alleges that mother fraudulently failed to disclose the ten-month gestation period, he offers no plausible reason why he would have been unaware of the relevant dates prior to the divorce, and thus on inquiry notice of at least some irregularity. Plaintiff asserts that nondisclosure of the ten-month period constituted a fraudulent omission of material fact. Accordingly, he can hardly claim that he was unaware of the significance of the dates and therefore excused from taking action. While not dispositive, plaintiff’s failure to raise the issue prior to the final divorce order certainly undermines his claim that “equity and good conscience” require us to void the judgment. See N.C. v. W.R.C., 317 S.E.2d 793, 796-97 (W. Va. 1984) (father’s negligence in not raising paternity issue prior to final disposition of divorce precluded independent action challenging paternity).
Even more compelling, in our view, are the fundamental policy concerns that require finality of paternity adjudications.2 It is noteworthy that Vermont statutory law raises a rebuttable presumption of parentage where, as here, “the child is born while the husband and wife are legally married to each other.” 15 V.S.A. § 308(4) (Cum. Supp. 1998). The presumption of parentage originated in the common law, which established that “‘a child born of a married woman was conclusively presumed to be legitimate unless her husband was not within the four seas which bounded the kingdom.’” Miscovich v. Miscovich, 688 A.2d 726, 729 (Pa. Super. Ct. 1997) (quoting Common*522wealth ex. rel. Goldman v. Goldman, 184 A.2d 351, 354 (Pa. Super. Ct. 1962)). The presumption of paternity has been described as ‘“one of the strongest and most persuasive known to the law.’” Richard B. v. Sandra B.B., 625 N.Y.S.2d 127, 129 (App. Div. 1995) (quoting In re Findlay, 170 N.E. 471, 472 (N.Y. 1930)); see also A.G. v. S.G., 609 P.2d 121, 124 (Colo. 1980) (presumption of paternity is “one of the strongest presumptions known to the law”).
Protecting innocent children from the social burdens of illegitimacy, ensuring their financial and emotional security, and ultimately preserving the stability of the family unit all contributed to the origins of the parental presumption, and all help to explain its enduring power today. See Michael H. v. Gerald D., 491 U.S. 110, 125 (1989) (in addition to avoidance of illegitimacy, presumption of paternity prevented children from becoming wards of state and preserved stability of famihes); A.G., 609 P2d at 124 (public policy underlying presumption of paternity is to prevent unnecessary litigation and disruption of family relations); Ettore I. v. Angela D., 513 N.Y.S.2d 733, 739 (App. Div. 1987) (presumption of paternity preserves child’s need for continuity of family relationships); Michael K.T. v. Tina L.T., 387 S.E.2d 866, 871-72 (W. Va. 1989) (defeat of parental presumption would result in undeniable financial and psychological harm to child). Indeed, the presumption of paternity has assumed even greater significance today, as alternative methods of conception unrelated to the “biology” of the presumed parent have become more common. See In re B.L.V.B., 160 Vt. 368, 376, 628 A.2d 1271, 1276 (1993).
Thus, the State retains a strong and direct interest in ensuring that children born of a marriage do not suffer financially or psychologically merely because of a parent’s belated and self-serving concern over a child’s biological origins. These themes underlie the conclusion, reached by numerous courts, that the public interest in finality of paternity determinations is compelling, and that the doctrine of res judicata therefore bars subsequent attempts to disprove paternity. See, e.g., Hackley v. Hackley, 395 N.W2d 906, 913-14 (Mich. 1986) (best interests of child in maintaining stability and preventing psychological trauma must prevail over any unfairness to father resulting from denal of challenge to paternity nine years after judgment of divorce); Richard B., 625 N.Y.S.2d at 130 (“unequivocal trend . . . has been to zealously safeguard the welfare, stability and best interests of the child by rejecting untimely challenges affecting his or her legitimacy”) (quoting Ettore I., 513 N.Y.S.2d at 738); JEW *523& KB v. DJB, 814 P.2d 1256, 1265 (Wyo. 1991) (“Because of the potentially damaging effect that relitigation of a paternity determination might have on innocent children, the doctrines of res judicata and collateral estoppel are rigorously observed in the paternity context.”).
As the Supreme Court of Michigan observed in a case factually similar to the case at bar:
[E]ven if we were inclined to adopt the position. . . that res judicata sometimes does not bar relitigation of a factual determination decided in a prior ease, we would not adopt the exception here. We believe that the best interests of this child, and all children whose rights will be implicated by the Court’s decision today, must prevail over any unfairness that may result to this [former husband] by denying his challenge of paternity raised nine years after entry of his judgment of divorce.
Hackley, 395 N.W.2d at 913. Thus, many other jurisdictions have rejected similar attempts to reopen paternity judgments based on post-judgment blood tests or other evidence, absent clear and convincing evidence that it serves the best interests of the child. See Tandra S. v. Tyrone W., 648 A.2d 439, 449 (Md. 1994) (collecting cases); JRW, 814 P.2d at 1266-67 nn.6-7 (collecting cases).
Although we understand plaintiff’s interest in ascertaining the true genetic makeup of the child, we agree with the many jurisdictions holding that the financial and emotional welfare of the child, and the preservation of an established parent-child relationship, must remain paramount. Where the presumptive father has held himself out as the child’s parent, and engaged in an ongoing parent-child relationship for a period of years, he may not disavow that relationship and destroy a child’s long-held assumptions, solely for his own self-interest. See Ettore I, 513 N.Y.S.2d at 740 (holding father’s “self-serving” effort to disavow paternity to be inconsistent with policy of protecting innocent children from irreparable loss of financial security and paternal bonds). Whatever the interests of the presumed father in ascertaining the genetic “truth” of a child’s origins, they remain subsidiary to the interests of the state, the family, and the child in maintaining the continuity, financial support, and psychological security of an established parent-child relationship. Therefore, absent a clear and convincing showing that it would serve the best *524interests of the child, a prior adjudication of paternity is conclusive. See A.K. v. S.K., 624 A.2d 36, 40-42 (N.J. Super. Ct. App. Div. 1993).
Here, plaintiff lived with Christina, as her father, for the first eight years of her life. Although he had the opportunity, plaintiff did not raise the issue of paternity during the divorce proceedings, and he continued to treat Christina as his child for six years thereafter, lending her parental guidance and support. It is thus readily apparent that a parent-child relationship was formed, and it is that relationship, and not the results of a genetic test, that must control. We perceive no basis in this case to relieve plaintiff of the prior adjudication of paternity, and all of its attendant legal and financial responsibilities.3
The dissent contends that mother committed a fraud on the court by affirmatively misrepresenting plaintiffs paternity in the divorce complaint, in the stipulation incorporated into the divorce decree, and in her testimony under oath. As noted, however, the divorce complaint did not contain a false representation of plaintiff’s paternity, but only the accurate statement that Christina was born of the marriage. The alleged misrepresentation in the parties’ stipulation concerned child custody, not paternity, and stated only that mother “is awarded the legal and physical responsibilities of the parties minor child.” This was hardly an unequivocal representation of plaintiff’s paternity. Finally, we are hard pressed to conclude that mother made fraudulent misrepresentations under oath when, as the dissent notes, the transcript of her testimony is not before us.
Citing several sister-state decisions, the dissent also argues that the stringent standards for a finding of fraud on the court should be relaxed in the family-law context because the state is an integral party. We are not persuaded, however, that the state’s interest in the welfare of children requires that post-judgment attacks on paternity should be made easier. On the contrary, the state’s concern is to ensure that children’s lives remain stable and secure, and this militates, if anything, against the liberal reopening of paternity determinations.
The dissent also argues that a finding of fraud on the court is compelled by our prior decisions in In re Goodrich, 111 Vt. 156, 11 *525A.2d 325 (1940), and Blondin v. Brooks, 83 Vt. 472, 76 A. 184 (1910). Goodrich, however, involved a lawyer who knowingly filed a false complaint and misrepresented facts to the court, and falls squarely within the category of fraud-on-the-court “perpetrated by officers of the court.” Kerwit Med. Prods., 616 F.2d at 837. Blondín is also inapposite. There, the Court refused to give conclusive effect to a New Mexico divorce judgment obtained by the wife, a Vermont resident, after her original divorce complaint in Vermont had been dismissed. The husband had failed to appear and defaulted in the New Mexico proceedings. Although the Blondín Court found that the wife had committed a fraud by failing to disclose to the New Mexico authorities her intent to return to Vermont, the real basis of the holding was the Court’s reluctance to give effect to such “quickie” foreign divorces (this was before no-fault divorce) at the expense of the spouse domiciled in Vermont. See Blondín, 83 Vt. at 484, 76 A. at 189 (Constitution “does not debar other states from giving such effect to a decree of that character as they may elect to do”).
The dissent argues that the policies favoring finality are archaic and counterproductive, and that barring a relitigation of paternity cannot perpetuate a parent-child relationship against a parent’s will. Obviously not. The fact that plaintiff chose for self-serving purposes to jeopardize his relationship with Christina is beyond our control. We need not, however, award plaintiff a financial windfall for his conduct, or deprive Christina of not only a father’s affection, but also the legal rights and financial benefits of the parental relationship. See Michael K.T., 387 S.E.2d at 872 (“While the law cannot prohibit the putative father from informing the child of their true relationship, it can prohibit him from employing the sanctions of the law to avoid the obligations which their assumed relationship would otherwise impose.”). The dissent’s assertion to the contrary notwithstanding, the real “victim” in this case is not Mark Godin, but his innocent daughter Christina.
Finally, our ruling in this case will help deter other parents who might otherwise seek, for financial or other self-serving reasons, to dissolve their parental bonds. See Ettore I., 513 N.Y.S.2d at 740 (were court to sanction father’s denial of paternity, “innocent victims of belated challenges to paternity would be deprived of any protection under the law”). Far from representing archaic interests, these policy concerns are more signficant today than ever before, as family structures become more fluid and the means of conception become *526ever more varied. Nor, finally, does our ruling prevent an interested child from later attempting to ascertain the identity of the child’s biological father. See 15 V.S.A. § 302(b) (action to establish parentage may be brought by child up to age of twenty-one).
For all of the foregoing reasons, therefore, we conclude that the policy interests underlying our decision in Lerman remain valid and controlling. The trial court correctly denied plaintiff’s request for genetic testing and for relief from judgment.
Affirmed.
Plaintiff’s motion to strike from the record portions of mother’s brief as well as previously unfiled documents is granted pursuant to VR.A.E 10(a).
There was no question that paternity “was necessarily determined in the original divorce proceeding, which granted an award of child support.” Slansky v. Slansky, 150 Vt. 438, 441 n.l, 553 A.2d 152, 153 n.l (1988) (construing our holding in Lerman). A finding of paternity is a necessary predicate to an ex-husband’s child support obligation. Moreover, a survey of other jurisdictions reveals that the overwhelming weight of authority holds that a divorce decree is an adjudication of the paternity of a child of the marriage. See, e.g., Anderson v. Anderson, 552 N.E.2d 546, 550-51 (Mass. 1990); Hackley v. Hackley, 395 N.W2d 906, 907-08 (Mich. 1986); DeVaux v. DeVaux, 514 N.W2d 640, 644 (Neb. 1994); Commonwealth ex rel. Coburn v. Coburn, 558 A.2d 548, 551 (Pa. Super. Ct. 1989).
This is not a case where a third party is seeking to establish paternity and assume support of the child, or where support is being sought from a third-party putative father. A finding of nonpaternity in this case would essentially leave the child without the benefit of a father-child relationship, and the economic and emotional well-being that accompanies it. Cf. M.F. v. N.H., 599 A.2d 1297, 1297 (N.J. Super. Ct. App. Div. 1991).