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Arthraster cristatus
Taxonomy
Arthraster cristatus was named by Spencer (1907). It is not extant. Its type specimen is Holotype BNHM E 20266.
Synonymy list
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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.
†Arthraster cristatus Spencer 1907
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. K. Spencer 1913 | Ridges of the radialia and superomarginalia cristate. Upper surface of the ridge of all arm-ossicles possessing lipped pits formely occupied by small spines. |
Measurements
No measurements are available
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| Source: g = genus, c = class, p = phylum | |||||
| References: Aberhan 1992, Villier 2010, Aberhan et al. 2004 | |||||
Age range: base of the Late/Upper Cenomanian to the top of the Late/Upper Santonian or 99.60000 to 83.50000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cenomanian | France | Arthraster cristatus (59613) | |
| Late/Upper Cenomanian | France | Arthraster cristatus (59585) | |
| Early/Lower Turonian | Czech Republic | Arthraster cristatus (90516 90518) | |
| Late/Upper Coniacian - Early/Lower Santonian | France | Arthraster cristatus (59675) | |
| Middle Santonian - Late/Upper Santonian | France | Arthraster cristatus (59652) |