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Surcula mayi
Taxonomy
Surcula mayi was named by Hanna and Israelsky (1925). Its type specimen is CAS 1721, a partial shell, and it is a 3D body fossil. Its type locality is CAS Loc. 850, Quebrada Mancora [Negritos Fm], which is in an Eocene marine horizon in the Negritos Formation of Peru.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Surcula mayi Hanna and Israelsky figs. pl. 7, fig. 12 |
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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.
†Surcula mayi Hanna and Israelsky 1925
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. D. Hanna and M. C. Israelsky 1925 | Shell thick, broadly fusiform; apical angle 70°; spire less than half as high as body whorl; whorls sharply angulated; fine spiral striations over whole of shell ; strong nodes occur
on angulation of whorls; 15 on body whorl; shoulder somewhat concave; growth lines indistinct on type; aperture ovate; inner lip heavily calloused ; a low, rounded, elongated tooth is present on the columella near the upper termination of the peristome, thus resembling many members of the family Bussidae; canal of moderate length, slightly twisted. |