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Tethyaster antares
Discussion
Etymology. The specific epithet derives from the giant red star Antares, of the Scorpius (scorpion) constellation, visible mainly from the Southern Hemisphere.
Taxonomy
Tethyaster antares was named by Fernández et al. (2014). Its type specimen is CPBA 16991, an other (Nearly complete body with incomplete arms), and it is a 3D body fossil. Its type locality is Pampa Tril, which is in a Valanginian shoreface sandstone in the Mulichinco Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Tethyaster antares Fernández et al. p. 214 figs. 4-5 |
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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.
†Tethyaster antares Fernández et al. 2014
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. Fernández et al. 2014 | Tethyaster of small size, with a R:r ratio close to 2.4:1. Arms short and triangular in outline.
Marginal ossicles rectangular, with a height at least equal to the width of the ossicle, wider in the interbrachial angles and narrower in the extremes of the arms. Inferomarginals with slightly convex profile, with approximately 28 pairs along a median arc. Marginal fascioles deep and wide. Spines of the inferomarginals large, flat and truncated; one spine per ossicle for the marginals of the interbrachial area and two spines per ossicle for the marginals of the arms. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Blake 1990 | |||||
Age range: Early/Lower Valanginian or 140.20000 to 136.40000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Valanginian | Argentina (Neuquen) | Tethyaster antares (type locality: 211979) |