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Nucinella taylori
Taxonomy
Nucinella taylori was named by Foster et al. (2017). Its type specimen is NHMUK PI MB 1206, a valve (left valve), and it is a 3D body fossil. Its type locality is LD-04, Lusitaniadalen, which is in a Griesbachian marine siltstone in the Vikinghøgda Formation of Svalbard and Jan Mayen.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2017 | Nucinella taylori Foster et al. p. 855 fig. 3 |
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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.
†Nucinella taylori Foster et al. 2017
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. J. Foster et al. 2017 | A small Nucinella having a nuculoid shape, smooth shell except for growth lines with three subumbonal and two anterior pointed blade-like teeth, with no triangular flat area below the dentition; opisthodetic ligament.
Shell is small, thin, inequilateral, equivalve, with a nuculoid, suboval outline. Posterior dorsal margin is slightly incurved; anterior margin almost straight. Opisthogyrate, beaks close to posterior margin, umbo prominent. Smooth shell, except for concentric, irregularly spaced growth lines. Monomyarian: posterior adductor muscle scar absent; anterior adductor large, oval. Opisthodetic ligament, prominent, external does not invade the hinge plate. Hinge made by five pointed blade-like teeth as a single arched series, with the anterior subumbonal teeth being smaller and wider than the posterior ones. A single, long lateral tooth. Left valve with a secondary ridge creating a shallow socket. Prodissoconch valves: outline nuculoid and suboval. Posterior margin is distinct, long and slightly incurved. Inequilateral, with beaks close to posterior margin, and sculpture consists of irregularly spaced growth laminae. Ventral valve margin has a narrow flat platform. Five anterior and 11 posterior hinge teeth. Amphidetic ligament, lying between the beak and anterior hinge plate. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy et al. 2009 | |||||
Age range: Griesbachian or 251.90200 to 250.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Griesbachian | Svalbard and Jan Mayen | Nucinella taylori (type locality: 182611 182612) |