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Ocruranus
Taxonomy
Ocruranus was named by Liu (1979) [Sepkoski's age data: Cm Tomm-l Cm Tomm-u Sepkoski's reference number: 951,1006].
It was assigned to Mollusca by Sepkoski (2002); to Halwaxida by Conway Morris and Caron (2007); to Polyplacophora by Vendrasco et al. (2009); and to Halkieriinae by Parkhaev and Demidenko (2010).
It was assigned to Mollusca by Sepkoski (2002); to Halwaxida by Conway Morris and Caron (2007); to Polyplacophora by Vendrasco et al. (2009); and to Halkieriinae by Parkhaev and Demidenko (2010).
Species
O. finial (syn. Stephaconus subpentaedrus, Postephaconus tentes, Gotlandochiton minimus, Stoliconus vemeres, Chengjiangoconus trilophodes, Stoliconus usitatus, Postestephaconus tentes, Dengyingoconus trianguliformis, O. diandongensis, Meishucunchiton vulgarus, Parapunctella xifingensis, Parascenella typica, O. gryphus, Liorichita sublaevis, Pileconus veloides, O. regularis), O. kangerluk, O. modestus, O. septentrionalis, O. trulliformis (syn. Ginella yichangensis)
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Ocruranus Liu pp. 505 - 506 |
| 1980 | Stephaconus Jiang |
| 1980 | Stoliconus Jiang p. 116 |
| 1980 | Postephaconus Jiang p. 119 |
| 1980 | Postestephaconus Jiang p. 119 |
| 1982 | Chengjiangoconus He and Yang p. 87 |
| 1984 | Parascenella Chen and Xiong |
| 1984 | Yuanjiapingella Yue |
| 1984 | Hanshuiella Yue et al. |
| 1987 | Liorichita Liu p. 386 |
| 1987 | Cremnodinotus Liu p. 390 |
| 1987 | Jiangiconus Starobogatov and Moskalev p. 9 |
| 1987 | Runnegarochiton Yü pp. 107 - 108 |
| 2002 | Dengyingoconus Sepkoski |
| 2002 | Ocruranus Sepkoski |
| 2002 | Parascenella Sepkoski |
| 2002 | Pileconus Sepkoski |
| 2007 | Ocruranus Conway Morris and Caron p. 1258 |
| 2009 | Ocruranus Vendrasco et al. pp. 1388 –1392 |
| 2010 | Ocruranus Parkhaev and Demidenko p. 979 |
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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. †Ocruranus Liu 1979
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†Ocruranus finial Liu 1979
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Invalid names: Chengjiangoconus trilophodes He and Yang 1982 [synonym], Dengyingoconus trianguliformis Xing et al. 1984 [synonym], Liorichita sublaevis Liu 1987 [synonym], Ocruranus diandongensis Luo et al. 1982 [synonym], Ocruranus gryphus Liu 1987 [synonym], Ocruranus regularis Liu 1987 [synonym], Parascenella typica Chen and Xiong 1984 [synonym], Pileconus veloides Jiang 1980 [synonym], Postestephaconus tentes Jiang 1980 [synonym], Stephaconus subpentaedrus Jiang 1980 [synonym], Stoliconus usitatus Jiang 1980 [synonym], Stoliconus vemeres Jiang 1980 [synonym]
†Ocruranus kangerluk Peel 2021
†Ocruranus modestus Yü 1987
†Ocruranus septentrionalis Peel and Skovsted 2005
†Ocruranus trulliformis Jiang 1980
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Invalid names: Ginella yichangensis Chen and Zhang 1980 [synonym]
Invalid names: Chengjiangoconus He and Yang 1982 [synonym], Cremnodinotus Liu 1987 [synonym], Dengyingoconus [synonym], Hanshuiella Yue and Xing 1984 [synonym], Jiangiconus Starobogatov and Moskalev 1987 [synonym], Liorichita Liu 1987 [synonym], Parascenella Chen and Xiong 1984 [synonym], Pileconus [synonym], Postephaconus Jiang 1980 [synonym], Postestephaconus Jiang 1980 [synonym], Runnegarochiton Yü 1987 [synonym], Stephaconus Jiang 1980 [synonym], Stoliconus Jiang 1980 [synonym], Yuanjiapingella Yue 1984 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Y. Parkhaev and Y. Demidenko 2010 | "Shell cap-shaped, low conical, wide. Apex blunt and straight, displaced posteriorly. Anterior field convex, posterior filed straight or concave, lateral fields flattened. Posterior field can bear median buttress. Aperture circular or rounded rhomboidal, with posterior sinus. Sinus margin can be fringed by buttress. External surface of shell smooth or bears faint growth lines. Surface of internal mold smooth or bears indistinct undulating radial folds." |
Measurements
No measurements are available
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| Source: f = family | |||||
| Reference: Hendy et al. 2009 | |||||
Age range: base of the Meishucunian to the top of the Dyeran or 530.70000 to 511.20000 Ma
Collections (53 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Nemakit-Daldynian | China (Yunnan) | O. finial (94557 94558 94559 171896 171898 171899) | |
| Manykaian - Tommotian | China (Yunnan) | O. finial, Eohalobia diandongensis (9854 9855 9861 9862 9863 9864 9865 9866) | |
| Meishucunian - Nemakit-Daldynian | China (Yunnan) | Eohalobia diandongensis (49681) | |
| Meishucunian | China (Hubei) | Ginella yichangensis (108415) Stephaconus trulliformis (107789) | |
| Meishucunian | China (Anhui) | Stephaconus sp. (107772) | |
| Meishucunian | China (Yunnan) | Eohalobia diandongensis (108256 201511) O. finial (201530 201546 201547) O. finial, Eohalobia diandongensis (201512 201513 201517 201529 201531 201541 201542 201544 201568 201569 201570) O. trulliformis, O. finial (201519) O. trulliformis, O. finial, Eohalobia diandongensis (201514 201515 201516 201518 201543 201545 201567) | |
| Meishucunian | China (Shaanxi) | Hanshuiella primitiva, Yuanjiapingella longa, Yuanjiapingella curta (107775) | |
| Meishucunian - Tommotian | China (Yunnan) | O. subpentaedrus, O. finial, Eohalobia diandongensis (96449) O. trulliformis, O. finial, Eohalobia diandongensis (50504) | |
| Tommotian | China (Yunnan) | O. finial, Eohalobia diandongensis (171901) O. subpentaedrus, O. finial, Eohalobia diandongensis (94556) O. trulliformis, Eohalobia diandongensis (171902) | |
| Dyeran | Greenland (Peary Land) | O. sp., O. kangerluk (210618) | |
| Dyeran | Canada (Newfoundland and Labrador) | O. sp. (50783) | |
| Dyeran | Greenland | O. sp. (49459 49464) O. sp., O. septentrionalis (49456) |