| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Proraster dalli
Taxonomy
Synonymy list
| Year | Name and author |
|---|---|
| 1891 | Hemiaster dalli Clark |
| 1915 | Hemiaster dalli Clark and Twitchell p. 90 |
| 1953 | Proraster dalli Cooke p. 36 figs. Pl 15, figs 1-5 |
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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.
†Proraster dalli Clark 1891
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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: Kiessling 2004, Aberhan 1992 | |||||
Age range: base of the Late/Upper Albian to the top of the Late/Upper Maastrichtian or 105.30000 to 66.00000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian | USA (Texas) | Hemiaster dalli (187292) | |
| Early/Lower Campanian | USA (Texas) | Proraster dalli (78197) | |
| Early/Lower Campanian - Middle Campanian | USA (Texas) | Proraster dalli (3611 78196 197714 197715 197716) | |
| Middle Campanian | USA (Texas) | Proraster dalli (3632) | |
| Late/Upper Maastrichtian | USA (Texas) | Proraster dalli (4514 4517 197652) |