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Anulocrinus
Taxonomy
Anulocrinus was named by Ramsbottom (1961) [Sepkoski's age data: O Cara-l O Ashg-m Sepkoski's reference number: 248,250]. It is not extant.
It was assigned to Calceocrinidae by Ausich (1998); and to Disparida by Sepkoski (2002).
It was assigned to Calceocrinidae by Ausich (1998); and to Disparida by Sepkoski (2002).
Species lacking formal opinion data
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.
G. †Anulocrinus Ramsbottom 1961
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subc = subclass, c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Middle Ordovician to the top of the Rawtheyan or 471.30000 to 445.20000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (Oklahoma) | A. ramifer (201757) | |
| Blackriveran | USA (Oklahoma) | A. drummuckensis (24097) A. ramifer (195568) | |
| Blackriveran | USA (Illinois, Iowa) | A. forrestonensis (23436 23445 23449) | |
| Blackriveran - Rocklandian | USA (Minnesota) | A. forrestonensis (23400) | |
| Rawtheyan | United Kingdom (Scotland) | A. thraivensis (73134) |