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Hystrixasterias hettangiurnus
Taxonomy
Hystrixasterias hettangiurnus was named by Blake (1990). It is not extant. Its type specimen is Naturhistorisches Museum Basel, Abteilung Geologie, Holotype M9682. Its type locality is Asteroidea, Göppingen, Angulata zone, which is in a Hettangian marine siltstone in Germany. It is the type species of Hystrixasterias.
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Hystrixasterias hettangiurnus Blake pp. 121-122 figs. 3-4 |
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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.
†Hystrixasterias hettangiurnus Blake 1990
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake 1990 | Same as for the genus, by monotypy. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Age range: Late/Upper Hettangian or 201.40000 to 199.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Hettangian | Germany (Württemberg) | Hystrixasterias hettangiurnus (type locality: 59868) |