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Ophiceras
Taxonomy
Ophiceras was named by Griesbach (1880) [Sepkoski's age data: Tr Indu-l Sepkoski's reference number: 302].
It was assigned to Ophioceratidae by Tozer (1981); to Ceratitida by Sepkoski (2002); and to Ophiceratidae by Spath (1934), Kapoor and Bando (1974), Tozer (1994), Tongtherm et al. (2016), Zhang et al. (2017), Ware and Bucher (2018), Dai et al. (2019).
It was assigned to Ophioceratidae by Tozer (1981); to Ceratitida by Sepkoski (2002); and to Ophiceratidae by Spath (1934), Kapoor and Bando (1974), Tozer (1994), Tongtherm et al. (2016), Zhang et al. (2017), Ware and Bucher (2018), Dai et al. (2019).
Species
O. (Acanthophiceras) poulseni, O. (Acanthophiceras) subgibbosum, O. bilotense, O. commune, O. connectens, O. crassecostatum, O. dharma, O. gibbosum, O. greenlandicum, O. medium (syn. O. tingi, O. platyspira, O. chamunda, O. ptychodes, O. sakuntala), O. stricturatum, O. subsakuntala, O. tibeticum (syn. O. serpentinum), O. transitorium
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1880 | Ophiceras Griesbach p. 109 |
| 1916 | Acanthophiceras Diener |
| 1934 | Ophiceras Spath |
| 1934 | Ophiceras (Acanthophiceras) Spath |
| 1935 | Ophiceras (Acanthophiceras) Spath p. 39 |
| 1974 | Ophiceras Kapoor and Bando |
| 1981 | Ophiceras Tozer p. 89 |
| 1994 | Ophiceras Tozer p. 56 |
| 2002 | Ophiceras Sepkoski |
| 2016 | Ophiceras Tongtherm et al. |
| 2017 | Ophiceras Zhang et al. p. 654 |
| 2018 | Ophiceras Ware and Bucher |
| 2019 | Ophiceras Dai et al. p. 49 |
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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. †Ophiceras Griesbach 1880
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†Ophiceras bilotense Reed 1944
†Ophiceras commune Spath 1930
†Ophiceras connectens Schindewolf 1954
†Ophiceras crassecostatum Welter 1922
†Ophiceras dharma Diener 1897
†Ophiceras gibbosum Griesbach 1880
†Ophiceras greenlandicum Spath 1930
†Ophiceras medium Griesbach 1880
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†Lytophiceras chamunda evoluta Frech 1902
Invalid names: Ophiceras chamunda Diener 1897 [synonym], Ophiceras platyspira Diener 1897 [synonym], Ophiceras ptychodes Diener 1897 [synonym], Ophiceras sakuntala Diener 1897 [synonym], Ophiceras tingi Tien 1933 [synonym]
†Ophiceras stricturatum Frech 1905
†Ophiceras subsakuntala Spath 1935
†Ophiceras transitorium Spath 1930
Invalid names: Acanthophiceras Diener 1916 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 95 | 9.29 | 4.00 | 40.9 | 7.50 | 11.0 | |
| shell diameter | 95 | 30.5 | 10.1 | 124.0 | 29.7 | 22.9 | |
| shell inflation | 95 | 8.32 | 3.50 | 52.1 | 5.85 | 13.4 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Wuchiapingian to the top of the Smithian or 259.51000 to 248.10000 Ma
Collections (273 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | Pakistan | O. bilotense (126459) | |
| Changhsingian | Pakistan (Punjab) | O. connectens (41559) | |
| Griesbachian | China (Anhui) | O. sp. (109790 149194 149197) | |
| Griesbachian | China (Shaanxi) | O. sp. (148515 149066 149071 149072) | |
| Griesbachian | Iran | O. sp. (112961) O. sp., Acanthophiceras golshanii (112963) | |
| Griesbachian | China (Xizang) | O. gibbosum, O. tibeticum, O. medium (229693) O. medium (229688 229689 229690 229694 229726 229776 229777 229778) O. sp. (189585) O. sp. nov., O. gibbosum, O. tibeticum, O. medium (229692) O. sp. nov., O. tibeticum, O. medium (229691) O. tibeticum (189586 189587) O. tibeticum, O. medium (229779) | |
| Griesbachian | Pakistan | O. connectens (95275 95276 110935 110941) O. sp. (110932 110944 110945 110947 110949 110951 110954 110955) | |
| Griesbachian | Canada (Nunavut) | O. commune (43852 43854 47951 47962) O. greenlandicum (47961) O. greenlandicum, O. subsakuntala (47923) O. subsakuntala (47963 47964) | |
| Griesbachian | China (Zhejiang) | O. sp. (43790 111653 111655 111657) O. spp. (105222) | |
| Griesbachian | Armenia | O. medium (110759 110760) | |
| Griesbachian | China (Hubei) | O. sp. (95723 109792 149219 149220 149222 149223 204851 204852 204856 204857 204859 204861 204862 218262 218264 218265 218267) | |
| Griesbachian | Greenland | O. chamunda (118690) O. commune (48065 112724 112729 112737 112740 112746 112747 118552 118578 118607 118618 118619 118638 118641 118642 118662 118663 118664 118672 118683 118694 118695 118698 118743 118745 118746 118753 118754) O. commune, O. chamunda (118702) O. commune, O. chamunda, O. ptychodes (118744) O. commune, O. poulseni (112751 118651) O. commune, O. ptychodes (118625) O. commune, O. subsakuntala (48060) O. commune, O. subsakuntala, O. evolutum (48114) O. gibbosum, O. commune, O. subsakuntala, O. chamunda (48113) O. greenlandicum (118755 118761) O. greenlandicum, O. commune (118617) O. greenlandicum, O. commune, O. poulseni (112758) O. greenlandicum, O. commune, O. subsakuntala, O. transitorium (48121) O. poulseni (118771) O. sp. (48042 48050 48051 118624 118637 118668) O. sp. juv. (118560 118653) O. sp. nov. (118542) O. sp., O. commune (48045 118559) O. spathi (48037) O. spathi, O. commune (48064) O. spathi, O. commune, O. subsakuntala (48061) O. spathi, O. commune, O. subsakuntala, O. poulseni (48059) O. spp. (118688 118707 118709) O. spp., O. commune (118524 118525 118595 118689) O. subsakuntala (48115) O. transitorium (118504 118520 118530 118534 118556 118572 118599 118602 118606 118608 118609 118614 118620 118626 118627 118631 118632 118650 118665 118675 118685 118686 118687 118703 118756) O. transitorium, O. subgibbosum (118712) | |
| Griesbachian | Pakistan (Punjab) | O. connectens (217478) | |
| Griesbachian | China (Chongqing) | O. sp. (148535 149134) | |
| Griesbachian | Svalbard and Jan Mayen | O. sp. (212073) O. spathi, O. poulseni (212072) | |
| Griesbachian | USA (Alaska) | O. greenlandicum, O. commune (61954) | |
| Griesbachian | Thailand | O. sakuntala, O. chamunda (97003) | |
| Griesbachian | Oman | O. sakuntala (44804) O. sp. (44774 44776 44778 44781 44784 214529 214530 214533) O. sp., O. sakuntala (44788 44792 44795 44801) | |
| Griesbachian | China (Guangxi) | O. sp. (96695 104966 149202) | |
| Griesbachian | Azerbaijan | O. medium (110605 110710 110724 110733) O. sp. (110606) | |
| Griesbachian | China | O. sp. (195897 195901 195902) | |
| Griesbachian | China (Sichuan) | O. sinense (48946) O. sp. (149077) | |
| Griesbachian | India | O. chamunda (44025) O. gibbosum, O. tibeticum, O. medium, O. serpentinum, O. platyspira, O. sakuntala, O. ptychodes, O. chamunda (44028) O. sakuntala, O. chamunda, O. dharma (85463) O. tibeticum, O. chamunda (44019) O. tibeticum, O. medium, O. serpentinum, O. platyspira, O. sakuntala, O. chamunda (44026) O. tibeticum, O. sakuntala (44017 44018 44021) O. tibeticum, O. serpentinum, O. chamunda (44024) Trachyceras gibbosum, O. tibeticum, O. medium (110990) | |
| Griesbachian | China (Fujian) | O. sp. (148557) | |
| Griesbachian | China (Guizhou) | O. medium (198877 198878 198879 198880 198881 198882 198883 198885 198886) O. sinense, O. tingi (151143) O. sp. (111985 149285 149303 149304 149305 151112 151113 151114 151115 151116 151119 151121 151129 198887 198888 205960) O. sp., Lytophiceras chamunda (151118) O. tingi (151139) | |
| Griesbachian | Russian Federation (Siberia) | O. transitorium (48472 48481) | |
| Griesbachian | India (Kashmir) | Lytophiceras ptychodes (215002) Lytophiceras sakuntala (48914) O. ptychodes (214659) O. sakuntala (131943) O. sp. (131952 214658) O. sp., O. tibeticum, O. serpentinum (131954) O. tibeticum, O. serpentinum (48915) | |
| Griesbachian | Russian Federation | O. commune (107123) O. sp. (214748) O. sp., O. transitorium (187169) | |
| Griesbachian | Svalbard and Jan Mayen (Barentsøya, Edgeøya, and Hopen (Svalbard) ) | O. sp. (212898) | |
| Griesbachian - Dienerian | India (Kashmir) | O. sp. (50057) | |
| Induan | Vietnam | O. commune (44783) | |
| Induan | India (Kashmir) | Acanthophiceras gibbosum, O. tibeticum, O. serpentinum (215001) | |
| Induan | Svalbard and Jan Mayen | O. sp. (212933 212966) | |
| Induan | India | O. dharma (211001) O. tibeticum, O. serpentinum (210992) | |
| Griesbachian - Smithian | China (Qinghai) | Acanthophiceras gibbosum (103160) | |
| Early/Lower Triassic | Greenland | O. greenlandicum, O. transitorium (48120) | |
| Early/Lower Triassic | USA (Nevada) | O. sakuntala (33313) | |
| Induan - Olenekian | Myanmar (Shan) | O. sp. (44822) | |
| Induan - Olenekian | China (Anhui) | O. sp. (109791) | |
| Dienerian | Greenland | O. sp. (196948) | |
| Dienerian | China (Hubei) | Gyrophiceras plicatum (95717) | |
| Dienerian | Pakistan (Punjab) | O. connectens (217493) O. sakuntala (217479) | |
| Dienerian | Russian Federation | O. sp. (127715) | |
| Smithian | China (Guangxi) | O. sp. (44016) | |
| Smithian | USA (California) | O. involutum (33298) | |
| Smithian | Indonesia | O. crassecostatum (205639) O. gibbosum, O. crassecostatum (204267) | |
| Smithian | Indonesia (Timor) | O. crassecostatum (205641) | |
| Olenekian | Indonesia | O. sakuntala (204264) | |
| Olenekian | Japan | O. sp. (115244) | |
| Olenekian - Anisian | Thailand | O. connectens (211353) |