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Phymosoma hilli
Taxonomy
Pseudodiadema hilli was named by Clark (1891). It is a 3D body fossil. Its type locality is Bell County, which is in a Coniacian/Santonian carbonate chalk in the Austin Chalk Formation of Texas.
It was recombined as Cyphosoma hilli by Clark and Twitchell (1915); it was recombined as Phymosoma hilli by Cooke (1953).
It was recombined as Cyphosoma hilli by Clark and Twitchell (1915); it was recombined as Phymosoma hilli by Cooke (1953).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1891 | Pseudodiadema hilli Clark |
1915 | Cyphosoma hilli Clark and Twitchell p. 59 |
1953 | Phymosoma hilli Cooke p. 9 figs. Pl 3, figs 6,7 |
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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.
†Phymosoma hilli Clark 1891
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Diagnosis
No diagnoses are available