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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ditremaster
Taxonomy
Ditremaster is a genus. It is not extant.
It was assigned to Hemiasteridae by Fischer (1966), Lindley (2001); and to Spatangoida by Sepkoski (2002).
It was assigned to Hemiasteridae by Fischer (1966), Lindley (2001); and to Spatangoida by Sepkoski (2002).
Synonymy list
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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.
G. †Ditremaster
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992 | |||||
Age range: base of the Lutetian to the top of the Early/Lower Pliocene or 48.07000 to 3.60000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lutetian | Spain (Alicante) | D. nux (207104) | |
| Lutetian | Spain | D. covazii (165187) | |
| Late/Upper Eocene | USA (Florida) | D. sp. (34992) | |
| Priabonian | USA (Alabama) | D. beckeri (3543) | |
| Early/Lower Pliocene | Papua New Guinea | D. sp. (204727) |