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Pycinaster rasmusseni
Taxonomy
Pycinaster rasmusseni was named by Müller (1953). It is not extant. Its type specimen is Institut für Geowissenschaften, Jena.
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Pycinaster rasmusseni Müller p. 49 figs. pl. 1 fig. A, pl. 2 fig. G, pl. 3 fig. L |
| 1961 | Pycinaster rasmusseni Müller pp. 279-281 figs. 3d, 4b, pl. 3 fig. 3, pl. 4 fig. 1 |
| 1979 | Pycinaster rasmusseni Rasmussen p. 70 |
| 2002 | Pycinaster rasmusseni Reich and Frenzel p. 202 |
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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.
†Pycinaster rasmusseni Müller 1953
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. H. Müller 1961 | It differs from Pycinaster cornutus in that the outer surface is quite smooth and without granule-pits except for the large facet which cover the greater part of the abactinal surface and has borne a very powerful spine. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Maastrichtian | Germany (Mecklenburg-Vorpommern) | Pycinaster rasmusseni (32022) |