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Trichasteropsiidae
Taxonomy
Trichasteropsiidae was named by Blake and Hagdorn (2003). It is not extant. It was considered monophyletic by Blake and Hagdorn (2003) and Gale (2011).
It was corrected as Trichasteropsidae by Gale (2011).
It was assigned to Trichasteropsiida by Blake et al. (2006); to Neoasteroidea by Gale (2011); and to Trichasteropsida by Blake and Hagdorn (2003) and Blake et al. (2017).
It was corrected as Trichasteropsidae by Gale (2011).
It was assigned to Trichasteropsiida by Blake et al. (2006); to Neoasteroidea by Gale (2011); and to Trichasteropsida by Blake and Hagdorn (2003) and Blake et al. (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Trichasteropsiidae Blake and Hagdorn p. 35 |
| 2006 | Trichasteropsiidae Blake et al. p. 286 |
| 2011 | Trichasteropsidae Gale p. 102 |
| 2017 | Trichasteropsiidae Blake et al. p. 325 |
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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.
Fm. †Trichasteropsiidae Blake and Hagdorn 2003
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G. †Trichasteropsis Eck 1879
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†Trichasteropsis bielertorum Blake and Hagdorn 2003
†Trichasteropsis senfti Eck 1879
†Trichasteropsis weissmanni von Münster 1843
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Invalid names: Asterias cilicia Quenstedt 1852 [synonym], Asterias obtusa Goldfuss 1833 [synonym], Trichasteropsis hippeleini Rothe 1959 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and H. Hagdorn 2003 | Characters of the monofamilial order. | |
| A. S. Gale 2011 | Adambulacrals broad, short, broadening distally towards arm tip, bearing single transverse row of spine-bases. Single marginal row. Short adoral carina present. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | Germany | Trichasteropsis senfti (31996 59960) Trichasteropsis weissmanni (59964) | |
| Pelsonian | Germany (Nordrhein-Westfalen) | Trichasteropsis bielertorum (59967) | |
| Pelsonian | Germany (Niedersachsen) | Trichasteropsis bielertorum (66896) | |
| Ladinian | Germany (Bayern) | Berckhemeraster charistikos (59969 59970) Trichasteropsis weissmanni (59965 59966) | |
| Ladinian | Germany (Thuringia) | Trichasteropsis senfti (59962) Trichasteropsis weissmanni (59963) | |
| Ladinian | Germany (Baden-Württemberg) | Berckhemeraster charistikos (59968) | |
| Ladinian | Germany | Trichasteropsis senfti (59958 59959) Trichasteropsis weissmanni (59926 59928) Trichasteropsis weissmanni, Trichasteropsis senfti (59927 59961) | |
| Fassanian | Italy | Trichasteropsis sp. (236942) | |
| Fassanian | Germany | Trichasteropsis weissmanni (187348) |