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Glyptospira quadriserrata
Taxonomy
Glyptospira quadriserrata was named by Batten (1995). Its type specimen is AMNH 44945, a shell, and it is not a trace fossil. Its type locality is AMNH locality 2014, Powwow Canyon, which is in a Morrowan offshore shelf limestone in the Magdalena Limestone Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Glyptospira quadriserrata Batten p. 26 fig. 36 |
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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.
†Glyptospira quadriserrata Batten 1995
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | Turbiniform shells with four spiral elements above the low periphery.
DESCRIPTION: Early whorls are smooth and rounded. Suture sharp but shallow. Upper whorl face flattened with a subsutural, somewhat flattened ramp. Four equally spaced and developed spiral lirae have well-developed nodes aligned with growth lines. Fourth spiral element marks periphery, low on whorl. One or more intercalated spiral lirae are restricted to third or fourth spiral cords. Whorls embrace just under periphery. Base is flatly rounded. Six or more noded spiral cords on base are less well-developed than those on upper whorl surface. Anomphalus or cryptomphalus. Columellar lip is reflexed and thickened into a callus. Parietal surface is smooth with resorbed ornament. |