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Chinianasteridae
Taxonomy
Chinianasteridae was named by Spencer (1951). It is not extant. It was considered monophyletic by Dean Shackleton (2005).
It was assigned to Goniactinida by Spencer (1951), Owen (1965), Spencer and Wright (1966) and Blake and Guensburg (1993); to Somasteroida by Dean Shackleton (2005); and to Somasteroidea by Blake and Guensburg (2015).
It was assigned to Goniactinida by Spencer (1951), Owen (1965), Spencer and Wright (1966) and Blake and Guensburg (1993); to Somasteroida by Dean Shackleton (2005); and to Somasteroidea by Blake and Guensburg (2015).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Chinianasteridae Spencer p. 93 |
| 1963 | Villebrunasteridae Fell |
| 1965 | Chinianasteridae Owen p. 543 |
| 1966 | Chinianasteridae Spencer and Wright p. U39 |
| 1966 | Villebrunasteridae Spencer and Wright pp. U39-U40 |
| 1989 | Villebrunasteridae Blake p. 212 |
| 1993 | Chinianasteridae Blake and Guensburg p. 106 |
| 2005 | Chinianasteridae Dean Shackleton p. 64 |
| 2015 | Chinianasteridae Blake and Guensburg p. 467 |
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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. †Chinianasteridae Spencer 1951
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G. †Villebrunaster Spencer 1951
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†Villebrunaster fezouataensis Hunter and Ortega-Hernández 2021
Invalid names: Ampullaster Fell 1963 [synonym], Cantabrigiaster Hunter and Ortega-Hernández 2021 [synonym]
Invalid names: Villebrunasteridae Fell 1963 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Dean Shackleton 2005 | Ambulacral perradial region forms tall roof sheating radial water vessel; adambulacral spines lost; inferomarginal length less than half length of ambulacrals; inferomarginals with prominent spikes; madreporite in contact with adambulacral plating; rod-like rectangular plates link main aboral plates. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, p = phylum | |||||
| References: Aberhan 1992, Spencer and Wright 1966, Aberhan et al. 2004 | |||||
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ibexian | USA (Nevada) | Ophioxenikos langenheimi (91172) | |
| Tremadoc | Morocco | Cantabrigiaster fezouataensis (203101) | |
| Tremadocian | France (Languedoc-Roussillon) | Chinianaster levyi, Villebrunaster thorali, Thoralaster spiculiformis (101705) | |
| Arenig | France (Montagne Noire) | Chinianaster levyi, Villebrunaster thorali (20828) | |
| Floian | France (Montagne Noire) | Chinianaster levyi (20827) | |
| Fennian | France (Montagne Noire) | Chinianaster sp. (20825) |