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Palaeoypsilus
Taxonomy
Palaeoypsilus was named by Gilliland (1992) [Sepkoski's age data: J Hett-u J Sine-l Sepkoski's reference number: 982]. It is considered to be a form taxon. Its type is Palaeoypsilus liassicus.
It was assigned to Ypsilothuriidae by Gilliland (1992); and to Dactylochirotida by Sepkoski (2002).
It was assigned to Ypsilothuriidae by Gilliland (1992); and to Dactylochirotida by Sepkoski (2002).
Species
P. liassicus (type species)
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004, Massin 1982 | |||||
Age range: base of the Hettangian to the top of the Sinemurian or 201.30000 to 190.80000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian - Sinemurian | United Kingdom (England) | P. liassicus (41624 41626) |