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Hemiaster parastatus
Taxonomy
Spatangus parastatus was named by Morton (1833). Its type specimen is ANSP 1487, a test, and it is a 3D body fossil.
It was recombined as Hemiaster parastatus by Clark and Twitchell (1915), Cooke (1942) and Cooke (1959).
It was recombined as Hemiaster parastatus by Clark and Twitchell (1915), Cooke (1942) and Cooke (1959).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1833 | Spatangus parastatus Morton p. 294 |
1915 | Hemiaster parastatus Clark and Twitchell p. 92 |
1942 | Hemiaster parastatus Cooke p. 43 |
1959 | Hemiaster parastatus Cooke p. 67 |
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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.
†Hemiaster parastatus Morton 1833
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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: Aberhan 1992, Kiessling 2004 |
Age range: base of the Late/Upper Paleocene to the top of the Thanetian or 58.70000 to 56.00000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Thanetian | USA (New Jersey) | Hemiaster parastatus (3113) | |
Late/Upper Paleocene | USA (New Jersey) | Hemiaster parastatus (type locality: 155898 155904) |