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Psephoaster
Taxonomy
Psephoaster was named by McNamara (1987) [Sepkoski's age data: T Eo-u T Mi-l]. Its type is Psephoaster klydonos.
It was assigned to Hemiasteridae by McNamara (1987); and to Spatangoida by Sepkoski (2002).
It was assigned to Hemiasteridae by McNamara (1987); and to Spatangoida by Sepkoski (2002).
Species
Entered
by J. Sepkoski on 2003-01-23; modified by A. Hendy on 2013-10-27
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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. †Psephoaster McNamara 1987
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†Psephoaster apokryphos McNamara 1987
†Psephoaster klydonos McNamara 1987
†Psephoaster lissos McNamara 1987
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004 | |||||
Age range: base of the Late/Upper Eocene to the top of the Early/Lower Miocene or 37.71000 to 15.98000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene - Late/Upper Eocene | Australia (South Australia) | P. lissos (48443) | |
| Late/Upper Eocene | Australia (South Australia) | P. lissos (90083) | |
| Late/Upper Oligocene | Australia (Victoria) | P. apokryphos (72199) | |
| Early/Lower Miocene | Australia (South Australia) | P. klydonos (72198 72222) |