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Nucleolaria cowlitziana
Taxonomy
Nucleolaria cowlitziana was named by Groves (1994). Its type specimen is UCMP 39837, a shell, and it is a 3D body fossil. Its type locality is UCMP Loc. D-8040 - Cowlitz River, which is in a Bartonian deep-water siltstone in the Cowlitz Formation of Washington.
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Nucleolaria cowlitziana Groves pp. 247 - 248 figs. 6-7 |
| 1995 | Nucleolaria cowlitzensis Nesbitt p. 1066 |
| 2023 | Nucleolaria cowlitziana Groves and Squires p. 8 figs. Figures 4A-C |
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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.
†Nucleolaria cowlitziana Groves 1994
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. T. Groves 1994 | A Nucleolaria with prominent dorsal nodules connected by fine threads, a dorsal sulcus, and a deep fossula.
Shell shape ovoid, medium in size; spire covered; maximum height slightly posterior of midpoint; dorsal groove faint; dorsal nodules smooth, circular, connected by fine threads that extend onto ventral surfaces and form prominent denticulation; slight marginal callus; aperture slightly curved posteriorly toward columella; denticulation prominent with smooth interstices, labial lip with 19 teeth, columellar lip with 18 teeth; fossula with strong denticulation; anterior and posterior canals prominently lengthened by terminal teeth. |