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Hemiaster delawarensis
Taxonomy
Hemiaster delawarensis was named by Clark (1916). It is a 3D body fossil. Its type locality is Marl pit east of St. Georges, which is in a Maastrichtian marine horizon in the Mount Laurel Formation of Delaware.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1916 | Hemiaster delawarensis Clark |
| 1953 | Hemiaster delawarensis Cooke p. 35 figs. Pl 14, figs 6-9 |
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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 delawarensis Clark 1916
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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: Early/Lower Maastrichtian or 70.60000 to 66.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Maastrichtian | USA (Delaware) | Hemiaster delawarensis (type locality: 78190) |