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Lytophiceras
Taxonomy
Ophiceras (Lytophiceras) was named by Spath (1930). Its type is Ophiceras chamunda.
It was reranked as Lytophiceras by Shigeta and Zakharov (2009).
It was assigned to Ophiceras by Spath (1934), Spath (1935) and Kapoor and Bando (1974); and to Ophiceratidae by Shigeta and Zakharov (2009).
It was reranked as Lytophiceras by Shigeta and Zakharov (2009).
It was assigned to Ophiceras by Spath (1934), Spath (1935) and Kapoor and Bando (1974); and to Ophiceratidae by Shigeta and Zakharov (2009).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1930 | Ophiceras (Lytophiceras) Spath |
| 1934 | Ophiceras (Lytophiceras) Spath |
| 1935 | Ophiceras (Lytophiceras) Spath p. 16 |
| 1974 | Ophiceras (Lytophiceras) Kapoor and Bando |
| 2009 | Lytophiceras Shigeta and Zakharov p. 67 |
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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. †Lytophiceras Spath 1930
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†Lytophiceras leptodiscus Spath 1935
†Lytophiceras vishnuoides Spath 1935
†Ophiceras (Lytophiceras) kilenense Spath 1935
†Ophiceras (Lytophiceras) leptodiscus Spath 1935
†Ophiceras (Lytophiceras) ligatum Spath 1935
†Ophiceras (Lytophiceras) subsakuntala Spath 1935
†Ophiceras (Lytophiceras) ultimum Spath 1935
†Ophiceras (Lytophiceras) vishnuoides Spath 1935
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 13 | 20.6 | - | - | 20.6 | - | |
| shell diameter | 13 | 43.6 | 20.6 | 68.5 | 49.0 | 16.5 | |
| shell inflation | 13 | 18.8 | - | - | 18.8 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Griesbachian or 251.90200 to 250.50000 Ma
Collections (102 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Induan | China (Anhui) | L. sp. (95654) | |
| Griesbachian | Armenia | L. sp. (48963) Ophiceras sp. (110761 110779 110780 110781 110790) | |
| Griesbachian | China (Guizhou) | L. sp. (149304 149305 151112 151113 151118 151128 151129) | |
| Griesbachian | China (Fujian) | L. sp. (148557 148558) | |
| Griesbachian | India (Kashmir) | L. demissum (48915) | |
| Griesbachian | Azerbaijan | Ophiceras sp. (110639 110661 110699 110708 110709 110721 110732) | |
| Griesbachian | China (Anhui) | L. sp. (149193 149194 149195 149196) | |
| Griesbachian | China (Shaanxi) | L. sp. (149071) | |
| Griesbachian | Svalbard and Jan Mayen | Ophiceras subkyticum (212783) | |
| Griesbachian | China (Hubei) | L. sp. (149220 149221) | |
| Griesbachian | Greenland | Ophiceras kilenense (118625 118653 118663 118672 118762) Ophiceras kilenense, Ophiceras ultimum (118665) Ophiceras ligatum (48045) Ophiceras subsakuntala (118502 118525 118617 118624 118636 118638 118642 118693 118694 118695 118743 118753 118754) Ophiceras subsakuntala, Ophiceras kilenense (118664) Ophiceras ultimum (118503 118519 118536 118539 118540 118541 118542 118543 118544 118547 118548 118570 118603 118606 118608 118609 118610 118614 118622 118628 118630 118631 118658 118659 118668 118677 118713 118774) Ophiceras ultimum, Ophiceras leptodiscus (118545) Ophiceras ultimum, Ophiceras vishnuoides (118520) Ophiceras ultimum, Ophiceras vishnuoides, Ophiceras leptodiscus (118506) Ophiceras vishnuoides (118534 118535 118575 118613 118712) | |
| Griesbachian | Russian Federation | L. eusakuntaka (221137) L. sp. (90201 90204 90206) | |
| Griesbachian | China (Zhejiang) | L. sp. (48909 105222 111657) L. spp. (43790) | |
| Griesbachian | China (Sichuan) | L. sp. (149077) | |
| Dienerian | Russian Federation (Primorye) | L. eusacuntala (47262) L. eusakuntala (47225) | |
| Dienerian | Pakistan | L. sp. (102316) | |
| Dienerian | China (Hubei) | L. leptodiscus (95717) |