Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hemiaster welleri
Taxonomy
Hemiaster welleri was named by Clark (1907). It is a 3D body fossil. Its type locality is Railroad cut south of Lower Jamesburg, which is in a Santonian marine horizon in the Merchantville Formation of New Jersey.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1907 | Hemiaster welleri Clark |
1915 | Hemiaster welleri Clark and Twitchell p. 98 |
1953 | Hemiaster welleri Cooke p. 35 figs. Pl 14, figs 15-17 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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 welleri Clark 1907
show all | hide all
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
Source: o = order, c = class, p = phylum | |||||
References: Aberhan 1992, Kiessling 2004 |
Age range: Late/Upper Santonian or 85.80000 to 83.50000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Late/Upper Santonian | USA (New Jersey) | Hemiaster welleri (type locality: 78194) |