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Morphorhynchus
Taxonomy
Morphorhynchus was named by Cooper and Dutro (1982) [Sepkoski's age data: D Give-u Sepkoski's reference number: 708]. It is not extant. Its type is Morphorhynchus varicostatum.
It was assigned to Trigonirhynchiidae by Cooper and Dutro (1982); to Rhynchonellida by Sepkoski (2002); and to Trigonirhynchiinae by Williams et al. (2002).
It was assigned to Trigonirhynchiidae by Cooper and Dutro (1982); to Rhynchonellida by Sepkoski (2002); and to Trigonirhynchiinae by Williams et al. (2002).
Species
M. varicostatum (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1982 | Morphorhynchus Cooper and Dutro pp. 67 - 68 |
| 2002 | Morphorhynchus Sepkoski |
| 2002 | Morphorhynchus Williams et al. p. 1059 |
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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. †Morphorhynchus Cooper and Dutro 1982
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†Morphorhynchus varicostatum Cooper and Dutro 1982
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. A. Cooper and J. T. Dutro 1982 | Medium-sized rhynchonellid having subrectangular outline, smooth umbones, costate shell uniplicate with closely-spaced dental plates and small, narrow septalium partially covered by a posteriorly perforate inner hinge plate. |