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Heteroschisma
Discussion
Redefined by A. Bremier and D. B. Macurda,Jr.,1972
Taxonomy
Heteroschisma was named by Wachsmuth (1883) [Sepkoski's age data: D Eife-l D Give Sepkoski's reference number: 2]. It is not extant.
It was assigned to Codasteridae by Fay and Wanner (1967); to Phaenoschismatidae by Macurda (1983); and to Fissiculata by Sepkoski (2002).
It was assigned to Codasteridae by Fay and Wanner (1967); to Phaenoschismatidae by Macurda (1983); and to Fissiculata by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Heteroschisma Wachsmuth p. 352 |
| 1967 | Heteroschisma Fay and Wanner pp. S408-S409 figs. 248 3a, 3b |
| 1983 | Heteroschisma Macurda |
| 2002 | Heteroschisma Sepkoski |
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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. †Heteroschisma Wachsmuth 1883
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†Heteroschisma alternatum Lyon 1857
†Heteroschisma alternatus Lyon 1857
†Heteroschisma canadense Billings 1869
†Heteroschisma subtruncatus Hall 1858
Diagnosis
No diagnoses are available