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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Chariocrinus japonicus
Taxonomy
Chariocrinus japonicus was named by Hunter et al. (2011). Its type specimen is UMUT-ME 30336, a stem, and it is a 3D body fossil. Its type locality is Mitarai, Shokawa [Mitarai Fm], which is in a Berriasian offshore shale in the Mitarai Formation of Japan.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Chariocrinus japonicus Hunter et al. p. 117 figs. figs. 2, 3 |
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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.
†Chariocrinus japonicus Hunter et al. 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. W. Hunter et al. 2011 | Chariocrinus with nine columnals per noditaxis, low columnal height, articular facet pentalobate to sub-pentagonal, latera displaying a median ridge that disappears over the interradii. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Donovan 1994, Kiessling 2004, Aberhan 1992 | |||||
Age range: Berriasian or 143.10000 to 137.05000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Berriasian | Japan | Chariocrinus japonicus (type locality: 161967) |