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Parastrophina anceps
Taxonomy
Rhynchocamera anceps was named by Reed (1944).
It was recombined as Parastrophina anceps by Williams (1962) and Candela and Harper (2014).
It was recombined as Parastrophina anceps by Williams (1962) and Candela and Harper (2014).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1944 | Rhynchocamera anceps Reed p. 219 figs. pl. iii, figs.4, 4a |
| 1962 | Parastrophina anceps Williams pp. 226 - 227 figs. P1. XXIII, figs. 12-18; Fig. 10 |
| 2014 | Parastrophina anceps Candela and Harper pp. Supplement 1 |
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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.
†Parastrophina anceps Reed 1944
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Transversely trigonal Parastrophina over four-fifths as long as wide; young shells gently biconvex and rectimarginate, adult specimens over one-half as thick as wide, wedge-shaped in lateral profile with a deeply uniplicate anterior commissure; ventral sulcus bearing up to 5 low costae with 1 or 2 additional ones commonly developed on the antero-lateral flanks; spondylial septum almost one-third as long as the pedicle valve, cruralial septum shorter, just over one-quarter as long as the brachial valve. |