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Taxonomy
Symphysurina was named by Ulrich (1924) [Sepkoski's age data: O Trem-l].
It was assigned to Asaphida by Sepkoski (2002); and to Nileidae by Jell and Adrain (2002).
It was assigned to Asaphida by Sepkoski (2002); and to Nileidae by Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Symphysurina Ulrich |
| 2002 | Symphysurina Jell and Adrain p. 449 |
| 2002 | Symphysurina 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. †Symphysurina Ulrich 1924
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†Symphysurina brevis Fortey 1983
†Symphysurina bulbosa Lochman 1964
†Symphysurina elegans Poulsen 1937
†Symphysurina globocapitella Hintze 1953
†Symphysurina goniura Billings 1860
†Symphysurina myopia Westrop and in Landing et al 2003
†Symphysurina robusta Poulsen 1937
†Symphysurina spicata Ulrich in Walcott 1925
†Symphysurina uncaspicata Hintze 1953
†Symphysurina walcotti Kindle 1929
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Invalid names: Symphysurina brevispicata Hintze 1953 [synonym]
†Symphysurina woosteri Ulrich and Walcott 1924
Diagnosis
No diagnoses are available