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Heliaster
Taxonomy
Heliaster was named by Gray (1840) [Sepkoski's age data: T Plio-l R]. It is extant.
It was assigned to Forcipulatida by Sepkoski (2002); and to Heliasteridae by Viguier (1878), Spencer and Wright (1966) and Gale (2011).
It was assigned to Forcipulatida by Sepkoski (2002); and to Heliasteridae by Viguier (1878), Spencer and Wright (1966) and Gale (2011).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1840 | Heliaster Gray |
| 1878 | Heliaster Viguier |
| 1966 | Heliaster Spencer and Wright p. U74 |
| 2002 | Heliaster Sepkoski |
| 2011 | Heliaster Gale p. 60 |
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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: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Pliocene to the top of the Piacenzian or 5.33300 to 2.58800 Ma
Minimum age of oldest fossil (stem group age): 3.6 Ma
Minimum age of oldest fossil (stem group age): 3.6 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Pliocene | USA (Florida) | H. microbrachius (35026) | |
| Piacenzian | USA (Florida) | H. microbrachius (32039) |