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Pirasocrinidae
Taxonomy
Pirasocrinidae was named by Moore and Laudon (1943). Its type is Pirasocrinus.
It was assigned to Pirasocrinacea by Ubaghs et al. (1978), Webster and Lane (2007); and to Pirasocrinoidea by Webster et al. (2009).
It was assigned to Pirasocrinacea by Ubaghs et al. (1978), Webster and Lane (2007); and to Pirasocrinoidea by Webster et al. (2009).
Synonymy list
| Year | Name and author |
|---|---|
| 1943 | Pirasocrinidae Moore and Laudon |
| 1978 | Pirasocrinidae Ubaghs et al. p. T722 |
| 2007 | Pirasocrinidae Webster and Lane p. 959 |
| 2009 | Pirasocrinidae Webster et al. p. 248 |
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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.
Fm. †Pirasocrinidae Moore and Laudon 1943
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G. †Affinocrinus Knapp 1969
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†Affinocrinus grandis Moore and Strimple 1973
†Affinocrinus normalis Moore and Strimple 1973
†Affinocrinus progressus Moore and Strimple 1973
G. †Dasciocrinus Kirk 1939
G. †Eirmocrinus Strimple and Watkins 1969
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†Eirmocrinus brewi Webster and Lane 1970
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Invalid names: Eirmocrinus jeani Brew and Beus 1976 [synonym]
G. †Exterocrinus Knapp 1969
G. †Lasanocrinus Moore and Plummer 1940
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†Lasanocrinus daileyi Strimple 1940
†Lasanocrinus minutus Moore and Strimple 1973
†Lasanocrinus multinodulus Moore and Strimple 1973
†Lasanocrinus nodatus Moore and Strimple 1973
†Lasanocrinus strigosus Moore and Plummer 1938
G. †Metutharocrinus Moore and Strimple 1973
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†Metutharocrinus cockei Moore and Strimple 1973
†Metutharocrinus spinifer Moore and Strimple 1973
†Metutharocrinus undulatus Moore and Strimple 1973
G. †Perimestocrinus Moore and Plummer 1937
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†Perimestocrinus excavatus Weller 1909
†Perimestocrinus nevadensis Lane and Webster 1966
†Perimestocrinus oasis Webster and Lane 1967
†Perimestocrinus teneris Moore and Plummer 1938
G. †Pirasocrinus Moore and Plummer 1940
G. †Plaxocrinus Moore and Plummer 1937
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†Plaxocrinus crassidiscus Miller and Gurley 1894
†Plaxocrinus piutae Lane and Webster 1966
G. †Stenopecrinus Strimple 1961
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†Stenopecrinus ornatus Moore and Strimple 1973
†Stenopecrinus xerophilus Lane and Webster 1966
G. †Vertigocrinus Knapp 1969
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†Vertigocrinus parilis Moore and Plummer 1940
†Vertigocrinus subtilis Moore 1939
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, Hendy et al. 2009 | |||||
Age range: base of the Pendleian to the top of the Melekhovian or 330.30000 to 251.90200 Ma
Collections (51 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chesterian | USA (Kentucky) | Dasciocrinus sp. (206292) | |
| Pendleian | USA (Illinois) | Dasciocrinus spinifer (90821) | |
| Morrowan | USA (Arkansas) | Lasanocrinus strigosus, Perimestocrinus teneris (129921) Metutharocrinus cockei (128914) Utharocrinus pentanodus (129920) | |
| Morrowan | USA (Oklahoma) | Affinocrinus politus, Affinocrinus grandis (129915) Affinocrinus politus, Lasanocrinus nodatus, Metutharocrinus cockei, Affinocrinus progressus (128679) Lasanocrinus daileyi, Metutharocrinus undulatus, Affinocrinus normalis (128690) Lasanocrinus minutus (129914) Lasanocrinus nodatus, Lasanocrinus multinodulus, Lasanocrinus strigosus, Utharocrinus pentanodus, Metutharocrinus cockei (90795) Lasanocrinus nodatus, Lasanocrinus strigosus, Lasanocrinus minutus, Metutharocrinus cockei, Metutharocrinus spinifer, Affinocrinus progressus, Stenopecrinus ornatus, Perimestocrinus teneris (128687) Lasanocrinus nodus, Metutharocrinus cockei, Metutharocrinus spinifer, Affinocrinus progressus (128916) Metutharocrinus cockei (128647) | |
| Bashkirian | USA (Oklahoma) | Affinocrinus orbis (90799) | |
| Atokan | USA (Oklahoma) | Affinocrinus sp. A (90806 90807) Affinocrinus sp. A, Affinocrinus sp. B (90805) | |
| Moscovian | USA (Arizona) | Sciadiocrinus brewi, Eirmocrinus jeani (90772) | |
| Moscovian | China (Xinjiang) | Metaperimestocrinus aoertuensis (92636) | |
| Moscovian | Brazil (Pará) | Plaxocrinus brasilensis (90771) | |
| Missourian | USA (Illinois) | Stenopecrinus planus, Stenopecrinus sp. (51191) | |
| Missourian | USA (Nebraska) | Pirasocrinidae indet. (44411) | |
| Missourian | USA (Texas) | Perimestocrinus moseleyi, Pirasocrinus invaginatus, Plaxocrinus laxus, Plaxocrinus oeconomicus (90808) | |
| Missourian | USA (Kansas) | Pirasocrinidae indet. (72366 72369 72371 72372 72375 72377 72378 72383) | |
| Missourian | USA (Oklahoma) | Pirasocrinidae indet. (72365 72367 72368 72373 72374 72384 72385) Stenopecrinus planus (216601) | |
| Virgilian | USA (Kansas) | Plaxocrinus gloukosensis (90809) | |
| Rusavkinian | USA (Nebraska) | Plaxocrinus crassidiscus (124441) Plaxocrinus crassidiscus, Vertigocrinus parilis (124407) | |
| Rusavkinian | USA (Iowa) | P. sp. (124436) | |
| Sakmarian | Canada (British Columbia) | Pirasocrinidae indet. (98045) | |
| Artinskian | USA (Nevada) | Plaxocrinus piutae, Perimestocrinus nevadensis, Aatocrinus permicus, Perimestocrinus oasis (90756) Plaxocrinus sp., Stenopecrinus xerophilus, Perimestocrinus nevadensis, Pirasocrinidae indet. A, Pirasocrinidae indet. B (90757) Plaxocrinus sp., Utharocrinus sp., Plaxocrinus piutae, Stenopecrinus xerophilus, Perimestocrinus nevadensis (74742) | |
| Artinskian | Russian Federation | Hypermorphocrinus magnospinosus (101531) | |
| Kungurian | USA (Texas) | Delocrinus excavatus (89392) | |
| Melekhovian | USA (Nebraska) | P. sp. (124481) Triceracrinus sp. (124480) |