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Platycrinitacea
Taxonomy
Platycrinitacea was named by Austin and Austin (1843). Its type is Platycrinites.
It was corrected as Platycrinitoidea by Webster and Jell (1992), Webster et al. (2009), Webster and Webster (2012), Webster et al. (2025).
It was assigned to Compsocrinina by Webster and Jell (1992); and to Glyptocrinina by Ubaghs et al. (1978), Webster and Lane (1987), Ausich (1998), Webster et al. (2009), Webster and Webster (2012), Mao et al. (2018), Webster et al. (2025).
It was corrected as Platycrinitoidea by Webster and Jell (1992), Webster et al. (2009), Webster and Webster (2012), Webster et al. (2025).
It was assigned to Compsocrinina by Webster and Jell (1992); and to Glyptocrinina by Ubaghs et al. (1978), Webster and Lane (1987), Ausich (1998), Webster et al. (2009), Webster and Webster (2012), Mao et al. (2018), Webster et al. (2025).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Platycrinitacea Austin and Austin |
| 1978 | Platycrinitacea Ubaghs et al. p. T509 |
| 1987 | Platycrinitacea Webster and Lane p. 9 |
| 1992 | Platycrinitoidea Webster and Jell p. 323 |
| 1998 | Platycrinitacea Ausich p. 25 |
| 2009 | Platycrinitoidea Webster et al. p. 245 |
| 2012 | Platycrinitoidea Webster and Webster |
| 2018 | Platycrinitacea Mao et al. p. 1077 |
| 2025 | Platycrinitoidea Webster et al. p. 648 |
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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.
Superfm. †Platycrinitacea Austin and Austin 1843
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Fm. †Hapalocrinidae Jaekel 1895
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G. †Cantharocrinus Breimer 1962
G. †Cordylocrinus Angelin 1878
G. †Culicocrinus Muller 1855
G. †Cyttarocrinus Goldring 1923
G. †Lyonicrinus Springer 1926
G. †Thallocrinus Jeakel 1895
G. †Theleproktocrinus Witzke and Strimple 1981
Fm. †Hirneacrinidae Frest and Strimple 1977
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G. †Hagnocrinus Frest and Strimple 1977
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†Hagnocrinus bainbridgensis Frest and Strimple 1977
†Hagnocrinus balli Frest and Strimple 1977
†Hagnocrinus crenus Frest and Strimple 1977
G. †Hirneacrinus Frest and Strimple 1977
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†Hirneacrinus cupellaeformis Frest and Strimple 1977
†Hirneacrinus perplanus Frest and Strimple 1977
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 et al. 2004, Aberhan 1992 | |||||
Age range: base of the Hirnantian to the top of the Givetian or 445.20000 to 382.31000 Ma
Collections (44 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hirnantian | USA (Illinois) | Culicocrinus girardeauensis (201761) | |
| Llandovery | USA (Iowa) | Theleproktocrinus davidsoni (26712) | |
| Llandovery | United Kingdom (England) | Clematocrinus ramsbottomi (195252) | |
| Llandovery - Wenlock | USA (New York) | Hagnocrinus corporiculus (26801) | |
| Telychian | United Kingdom (England) | Hapalocrinus sp. (49635) | |
| Telychian | USA (Iowa) | Hagnocrinus sp., Lyonicrinus sp. (24963) Theleproktocrinus davidsoni (25015 26763) | |
| Telychian - Sheinwoodian | USA (Iowa) | Hagnocrinus sp. (26769) Hagnocrinus sp., Lyonicrinus sp. (26768) | |
| Sheinwoodian | USA (Indiana) | Hirneacrinus sp. (26805) | |
| Wenlock | USA (Indiana) | Hirneacrinidae indet. (26771 26858) Hirneacrinus cupellaeformis, Hirneacrinus perplanus (26811 130071) Hirneacrinus perplanus (130078) | |
| Wenlock | USA (Iowa) | Lyonicrinus sp., Platycrinitacea indet. (25019) | |
| Wenlock - Ludlow | USA (Illinois) | Hagnocrinus dubius (26770) Hapalocrinidae indet., Hirneacrinidae indet. (26816) | |
| Gorstian | United Kingdom | Hapalocrinus quinquepennis (119407) | |
| Ludlow | USA (Indiana) | Hapalocrinidae indet. (26688) | |
| Ludlow | USA (Tennessee) | Hagnocrinus crenus (131962) | |
| Ludlow | Australia (Victoria) | Clematocrinus argylensis (39141) Clematocrinus perforatus (39134) Hapalocrinidae indet. (39144) Hapalocrinus victoriae (39138) | |
| Ludlow | USA (Missouri) | Hagnocrinus balli, Hagnocrinus bainbridgensis (131963) Hagnocrinus n. sp., Cordylocrinus dubius, Hagnocrinus balli, Hagnocrinus bainbridgensis (26822) Hirneacrinus sp. (26821) | |
| Ludfordian - Pridoli | USA (Oklahoma) | Hagnocrinus sp. (26824) | |
| Pridoli | USA (West Virginia) | Hapalocrinus sp. (26825) | |
| Leintwardine | United Kingdom | Hapalocrinus quinquepennis (95143) | |
| Lochkovian | USA (New York) | Cordylocrinus plumosus, Cordylocrinus ramulosus (26690) | |
| Lochkovian | Australia (Victoria) | Clematocrinus perforatus (39125) | |
| Lochkovian | Czechia | Hapalocrinus sp. (94439) | |
| Early/Lower Emsian | Germany | Culicocrinus spinatus (74300) Hapalocrinus elegans, Hapalocrinus innoxius, Hapalocrinus penniger, Thallocrinus acifer, Thallocrinus hauchecornei, Thallocrinus procerus, Thallocrinus rugosus (26904) | |
| Early/Lower Emsian | Germany (Gemuenden) | Culicocrinus spinatus, Hapalocrinus rauffi (26903) | |
| Givetian | USA (New York) | Cyttarocrinus eriensis (5656 5659 5662 5663 76137) Cyttarocrinus sp. (5661) |