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Holcoptychites
Taxonomy
Holcoptychites is a genus. It is not extant.
It was assigned to Ammonoidea by Sepkoski (2002); and to Spitidiscinae by Aguirre-Urreta and Rawson (2003).
It was assigned to Ammonoidea by Sepkoski (2002); and to Spitidiscinae by Aguirre-Urreta and Rawson (2003).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Holcoptychites Sepkoski |
| 2003 | Holcoptychites Aguirre-Urreta and Rawson p. 595 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Holcoptychites
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†Holcoptychites agrioensis Weaver 1931
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Invalid names: Holcoptychites compressus Leanza and Wiedmann 1980 [synonym]
†Holcoptychites magdalenae Douvillé 1910
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Invalid names: Holcoptychites demissus Giovine 1950 [synonym], Holcoptychites meridionalis Gerth 1921 [synonym], Holcoptychites neuquensis Gerth 1921 [synonym]
†Holcoptychites neuquensis Douvillé 1910
†Holcoptychites recopei Douvillé 1910
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Invalid names: Holcoptychites covunquensis Windhausen 1931 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 17 | 37.4 | 17.7 | 89.2 | 36.8 | 20.3 | |
| shell diameter | 17 | 83.4 | 41.8 | 199.0 | 77.7 | 43.4 | |
| shell inflation | 17 | 23.3 | 14.6 | 55.0 | 19.4 | 11.4 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Valanginian to the top of the Hauterivian or 137.05000 to 125.77000 Ma
Collections (46 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Valanginian | Chile (Coquimbo) | H. neuquensis (221738) | |
| Valanginian - Hauterivian | Chile (Coquimbo) | H. magdalenae (221557) | |
| Early/Lower Hauterivian | Argentina | Holcodiscus magdalenae, Polyptychites neuquensis, Holcodiscus recopei (179322) H. agrioensis (61568 61587 61591 61600 61601 61603 61604 61605 61647 61649 61652 61653 61655) H. covunquensis (179323) H. magdalenae (61584 61594 61596 61597 61606 61613 61614 61616 61617 61644 61656) H. magdalenae, H. agrioensis (61585 61589 61590 61657) H. magdalenae, H. neuquensis (61598 61646) H. magdalenae, H. recopei (61658) H. n. sp. (61609 61612) H. n. sp., H. magdalenae, H. agrioensis (61588) H. neuquensis, H. agrioensis (179321) H. recopei (61592) H. sp. (61586 61607) | |
| Early/Lower Hauterivian | Argentina (Neuquen) | H. agrioensis (50190) H. compressum (44680) H. neuquensis (47202) | |
| Hauterivian | Argentina (Neuquén) | H. neuquensis (275175) |