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Perissitys stewarti
Taxonomy
Cophocara stewarti was named by Zinsmeister (1983). Its type specimen is UCR 6670/9, a shell, and it is a 3D body fossil. Its type locality is Meier Canyon, which is in a Thanetian open shallow subtidal conglomerate in the Simi Formation of California.
It was recombined as Perissitys stewarti by Popenoe and Saul (1987) and Saul (1988).
It was recombined as Perissitys stewarti by Popenoe and Saul (1987) and Saul (1988).
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Cophocara stewarti Zinsmeister p. 1298 figs. figs. 3j, 3k |
| 1987 | Perissitys stewarti Popenoe and Saul p. 21 figs. Figures 96 - 103 |
| 1988 | Perissitys stewarti Saul p. 884 |
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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.
†Perissitys stewarti Zinsmeister 1983
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. P. Popenoe and L. R. Saul 1987 | Pyriform Perissitys with two spiral ribs about the periphery, a nodulose subsutural welt, the inner lip expanded to cover nearly two-thirds of the shell, and no apertural ornaments. |