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Hemicalypterus
Taxonomy
Hemicalypterus was named by Schaeffer (1967) [Sepkoski's age data: Tr u Sepkoski's reference number: 746]. It is not extant. Its type is Hemicalypterus weiri.
It was assigned to Semionotidae by Schaeffer (1967), Murry (1986); and to Semionotiformes by Sepkoski (2002).
It was assigned to Semionotidae by Schaeffer (1967), Murry (1986); and to Semionotiformes by Sepkoski (2002).
Species
H. weiri (type species)
Synonymy list
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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.
Diagnosis
No diagnoses are available