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Llanocystis wilbernsensis
Taxonomy
Llanocystis wilbernsensis was named by Zamora et al. (2015) [Attached one-piece holdfasts that probably belong to this eocrinoid were briefly described by Spincer (1996)]. Its type specimen is USNM 178555, a calyx (most of the animal), and it is a 3D body fossil. Its type locality is Long Valley, which is in a Sunwaptan shallow subtidal limestone/siltstone in the Wilberns Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Llanocystis wilbernsensis Zamora et al. pp. 190 - 193 figs. 2 - 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.
†Llanocystis wilbernsensis Zamora et al. 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Zamora et al. 2015 | Polyplated oval theca composed of small, tessellate, polygonal plates; plates uniform in size except those connecting with stem that are slightly larger; apparently four stout, biserial appendages arising from oral surface; epispires scattered, small; long heteromorphic stem formed from thick and thin columnals that may end in a distal holdfast. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||