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Comptoniaster vrinensis
Taxonomy
Comptoniaster vrinensis was named by Villier et al. (2004). It is not extant. Its type specimen is Holotype MHNH 8995, paratype 8996. Its type locality is Echinodermata, Marls of the Variabilis zone, Thouars, which is in a Toarcian offshore marl in France.
Synonymy list
| Year | Name and author |
|---|---|
| 2004 | Comptoniaster vrinensis Villier et al. p. 811 figs. 2.1, 2.2, 4.1-3 |
| 2011 | Comptoniaster vrinensis Gale p. 59 |
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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.
†Comptoniaster vrinensis Villier et al. 2004
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Villier et al. 2004 | Marginal plates convex in profile. External face of the inferomarginal plates covered by fine, dense and contiguous granule pits (30–40 per square mm). External face of superomarginal plates covered by dense small tubercles. Intermarginal face flat. External face bordered with an oblique, depressed rim on distal side. Interradial marginal plates broad, with concave lateral faces oriented under a convergent angle towards the outside of the body. Marginal plates of arms are less broad with lateral faces parallel. Faces of articulation with ventral plates represent two-thirds of the plate height. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Blake 1990, Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Middle Toarcian or 182.00000 to 175.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Toarcian | France (Poitou-Charentes) | Comptoniaster vrinensis (type locality: 31839) |