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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Pycinaster mortenseni
Taxonomy
Pycinaster mortenseni was named by Mercier (1935). It is not extant. Its type specimen is The original material disappeared during the Second World War.
Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Pycinaster mortenseni Mercier pp. 9-10 figs. pl. 1 fig. 1a-d |
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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 mortenseni Mercier 1935
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Mercier 1935 | Overall shape of the plates quite similar to that of P. magnificus and P. crassus from the Late Cretaceous, but of a smaller size. Profile of the plate cuneiform, the upper face being dome shaped and drawing a broken arch. Internal face joining diagonally the concave lower face. Lateral faces concave medially, with fine punctuation. Margins underlined by a thick draught. Outer face covered by scarce granulation letting a smooth margin of varying width. Terminal plate of relatively large size, inflated, the lower face indented by a deep groove. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: Late/Upper Pliensbachian or 189.60000 to 183.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Pliensbachian | France | Pycinaster mortenseni (72286) |