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Tricrepicephalus
Taxonomy
Tricrepicephalus was named by Kobayashi (1935) [Sepkoski's age data: Cm mMid-u Cm Dres-l Sepkoski's reference number: 379]. It is not extant. It is the type genus of Tricrepicephalidae.
It was assigned to Tricrepicephalidae by Palmer (1954) and Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Tricrepicephalidae by Palmer (1954) and Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Tricrepicephalus Kobayashi |
| 1936 | Paracrepicephalus Lochman |
| 1954 | Tricrepicephalus Palmer p. 752 |
| 2002 | Tricrepicephalus Jell and Adrain p. 455 |
| 2002 | Tricrepicephalus 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. †Tricrepicephalus Kobayashi 1935
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†Tricrepicephalus asiaticus Yuan and Yin 1998
Invalid names: Paracrepicephalus Lochman 1936 [objective synonym]
Diagnosis
No diagnoses are available