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Donaldospira nodosa
Taxonomy
Stegocoelia (Donaldospira) nodosa was named by Batten (1995). Its type specimen is AMNH 44935, a shell, and it is not a trace fossil. Its type locality is AMNH locality 2015, Powwow Canyon, which is in a Morrowan offshore shelf limestone in the Magdalena Limestone Formation of Texas.
It was recombined as Donaldospira nodosa by Wagner (2023).
It was recombined as Donaldospira nodosa by Wagner (2023).
Synonymy list
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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.
†Donaldospira nodosa Batten 1995
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Batten 1995 | Turreted shells with a wide, noded selenizone at the periphery
DESCRIP-rION: Early whorls unknown. Upper whorl face convexo-concave with four or five equally spaced and developed spiral lirae. Collabral ornament consists of reinforced growth lines. Medially placed periphery marked by large spiral cord with wide, convex selenizone with strongly formed lunulae appearing as nodes. Outer whorl face has well-developed spiral cord separated from selenizone by a trough. Bottom ofouter whorl face marked by a large spiral cord. Whorls embrace just below this cord. Flattened base has three to five spiral lirae. Apertural features are unknown. |
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||