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Progonechinus
Taxonomy
Progonechinus is a genus. It is not extant.
It was assigned to Echinidae by Cooke (1941); to Glyphocyphidae by Fell and Pawson (1966); and to Temnopleuroida by Sepkoski (2002).
It was assigned to Echinidae by Cooke (1941); to Glyphocyphidae by Fell and Pawson (1966); and to Temnopleuroida by Sepkoski (2002).
Species
Entered
by J. Sepkoski on 2003-01-23
Synonymy list
| Year | Name and author |
|---|---|
| 1941 | Progonechinus Cooke p. 14 |
| 1966 | Progonechinus Fell and Pawson p. U417 |
| 2002 | Progonechinus Sepkoski |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992 | |||||
Age range: Late/Upper Eocene or 37.71000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | USA (Alabama) | Orthechinus pretiosus (203438) |