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Ypsilothuriidae
Taxonomy
Ypsilothuriidae was named by Heding (1942). It is extant. It was considered monophyletic by Kerr and Kim (2001).
It was assigned to Holothuroidea by Heding (1942); and to Dactylochirotida by Frizzell and Exline (1966), Pawson (1966), Gilliland (1992), Gilliland (1993), Kerr and Kim (2001), Reich (2003).
It was assigned to Holothuroidea by Heding (1942); and to Dactylochirotida by Frizzell and Exline (1966), Pawson (1966), Gilliland (1992), Gilliland (1993), Kerr and Kim (2001), Reich (2003).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1942 | Ypsilothuriidae Heding |
| 1966 | Ypsilothuriidae Frizzell and Exline p. U645 |
| 1966 | Ypsilothuriidae Pawson p. U645 |
| 1992 | Ypsilothuriidae Gilliland p. 182 |
| 1993 | Ypsilothuriidae Gilliland p. 136 |
| 2001 | Ypsilothuriidae Kerr and Kim p. 78 |
| 2003 | Ypsilothuriidae Reich p. 500 |
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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. Ypsilothuriidae Heding 1942
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992, Massin 1982 | |||||
Age range: base of the Hettangian to the top of the Sinemurian or 201.40000 to 192.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian - Sinemurian | United Kingdom (England) | Palaeoypsilus liassicus (41624 41626) |