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Dimerocrinitidae
Taxonomy
Dimerocrinitidae was named by von Zittel (1879). It is not extant. Its type is Dimerocrinites. It is the type family of Dimerocrinitacea.
It was assigned to Dimerocrinitacea by Ubaghs et al. (1978), Ausich (1998), Ausich and Copper (2010); and to Diplobathrida by von Zittel (1879), Ausich et al. (2019), Ausich and Cournoyer (2019).
It was assigned to Dimerocrinitacea by Ubaghs et al. (1978), Ausich (1998), Ausich and Copper (2010); and to Diplobathrida by von Zittel (1879), Ausich et al. (2019), Ausich and Cournoyer (2019).
Subtaxa
Allozygocrinus, Ambicocrinus, Becsciecrinus, Cybelecrinus, Cyphocrinus, Dimerocrinites (type genus), Duncanicrinus, Eodimerocrinites, Eucrinus, Eudimerocrinus, Euptychocrinus, Gnarycrinus, Griphocrinus, Hiiumaacrinus, Macarocrinus, Nexocrinus, Oepikicrinus, Pterinocrinus, Ptychocrinus, Shidianocrinus
Synonymy list
| Year | Name and author |
|---|---|
| 1879 | Dimerocrinitidae von Zittel |
| 1978 | Dimerocrinitidae Ubaghs et al. p. T434 |
| 1998 | Dimerocrinitidae Ausich p. 24 |
| 2010 | Dimerocrinitidae Ausich and Copper p. 16 |
| 2019 | Dimerocrinitidae Ausich and Cournoyer |
| 2019 | Dimerocrinitidae Ausich et al. |
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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. †Dimerocrinitidae von Zittel 1879
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G. †Allozygocrinus Witzke and Strimple 1981
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†Allozygocrinus dubuquensis Witzke and Strimple 1981
†Allozygocrinus exallos Ausich and Copper 2010
G. †Ambicocrinus Kirk 1945
G. †Becsciecrinus Ausich and Copper 2010
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†Becsciecrinus adonis Ausich and Copper 2010
†Becsciecrinus groulxi Ausich and Cournoyer 2019
G. †Cybelecrinus Ausich and Copper 2010
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†Cybelecrinus ladas Ausich and Copper 2010
†Cybelecrinus nebros Ausich and Copper 2010
G. †Cyphocrinus Miller 1892
G. †Dimerocrinites Phillips 1839
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†Dimerocrinites brachiatus Hall 1852
†Dimerocrinites decadactylus Roemer 1855
†Dimerocrinites elegans Springer 1928
G. †Eodimerocrinites Donovan and Gilmour 2003
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†Eodimerocrinites littlewoodi Donovan and Gilmour 2003
G. †Eucrinus Angelin 1878
G. †Eudimerocrinus Springer 1926
G. †Euptychocrinus Brow 1994
G. †Macarocrinus Jaekel 1895
G. †Pterinocrinus Goldring 1923
G. †Ptychocrinus Wachsmuth and Springer 1885
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†Ptychocrinus mullochillensis Fearnhead and Donovan 2006
G. †Shidianocrinus Chen and Yao 1985
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Aberhan 1992, Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Maysvillian to the top of the Late/Upper Emsian or 450.20000 to 393.47000 Ma
Collections (112 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Shermanian | USA (Iowa, Illinois) | Ptychocrinus sp. (23474) | |
| Shermanian | USA (Minnesota) | Ptychocrinus sp. (23404) | |
| Shermanian | USA (Illinois, Iowa) | Ptychocrinus sp. (23477 23481 23486) | |
| Katian | United Kingdom (Scotland) | Eodimerocrinites littlewoodi (181069) | |
| Katian | USA (Iowa) | Euptychocrinus skopaios (138446) | |
| Maysvillian | USA (Kentucky) | Ptychocrinus sp. (72673 72698 72723 72754 72770) | |
| Maysvillian | USA (Ohio) | Ptychocrinus sp. (388) | |
| Richmondian | USA (Ohio) | Ptychocrinus sp. (72608) | |
| Hirnantian | Canada (Quebec) | Dimerocrinitidae indet. (202374) | |
| Rhuddanian | Canada (Quebec) | Becsciecrinus adonis (202383 202384) | |
| Rhuddanian | Canada (Ontario) | Nexocrinus delicatulus (26686) Ptychocrinus medinensis (13288) | |
| Rhuddanian | United Kingdom (Scotland) | Ptychocrinus mullochillensis (195254) | |
| Llandovery | Canada (Ontario) | Nexocrinus delicatulus (3491) Ptychocrinus medinensis (3487 3492 75225) | |
| Llandovery | USA (Iowa) | Dimerocrinites sp. (456 26711 26712 26713) | |
| Llandovery | USA (New York) | Ptychocrinus medinensis (75224) Ptychocrinus sp. (13290) | |
| Llandovery - Wenlock | USA (New York) | Dimerocrinites sp. (26801) | |
| Silurian - Wenlock | USA (Illinois) | Dimerocrinites occidentalis, Dimerocrinites sp. (13355) | |
| Raikkula | Estonia (Jõgeva) | Oepikicrinus perensae (206508) | |
| Aeronian | Canada (Québec) | Dimerocrinites elegans (24416 24418) | |
| Aeronian | Estonia (Jõgeva) | Oepikicrinus perensae (206510 206511) | |
| Aeronian | Canada (Quebec) | Cybelecrinus ladas (202388) | |
| Aeronian - Telychian | Canada (Quebec) | Becsciecrinus groulxi (202386) | |
| Aeronian - Telychian | Canada (Québec) | Dimerocrinites elegans (24412) | |
| Telychian | USA (Iowa) | Dimerocrinites hopkintonensis, Dimerocrinites sculptus, Allozygocrinus dubuquensis (24963) Dimerocrinites sculptus (24968 26708) Dimerocrinites sp. (25015 25038 26717 26763) | |
| Telychian | Canada (Québec) | Dimerocrinites elegans (24420 24423 24424) | |
| Telychian | United Kingdom | Dimerocrinites pentlandicus, Ptychocrinus longibrachialis (224104) | |
| Telychian | Canada (Quebec) | Allozygocrinus exallos (202393) Dimerocrinites elegans (202394) Dimerocrinites elegans, Cybelecrinus ladas (202395) Dimerocrinites elegans, Cybelecrinus ladas, Cybelecrinus nebros (202396) | |
| Telychian - Sheinwoodian | USA (Iowa) | Dimerocrinites hopkintonensis (26715) Dimerocrinites hopkintonensis, Dimerocrinites sculptus, Allozygocrinus dubuquensis (26768) Dimerocrinites sp. (26810) Dimerocrinites sp., Dimerocrinites sculptus (26769) | |
| Wenlock | USA (Wisconsin) | Dimerocrinites pentangularis, Dimerocrinites sp. (13353) | |
| Wenlock | USA (Indiana) | Cyphocrinus gorbyi (26811) Cyphocrinus gorbyi, Dimerocrinites sp. (26700 26771) Cyphocrinus sp., Dimerocrinites occidentalis, Dimerocrinites inornatus, Dimerocrinites carleyi (26778) Dimerocrinites occidentalis, Dimerocrinites carleyi (26787 26789 26792 26794) Dimerocrinites occidentalis, Dimerocrinites inornatus (26856) | |
| Wenlock | USA (Tennessee) | Dimerocrinites occidentalis (26802) Dimerocrinites occidentalis, Dimerocrinites inornatus, Dimerocrinites carleyi, Dimerocrinites sp. (26788) | |
| Wenlock | USA (New York) | Dimerocrinites lilliformis (13053) Dimerocrinites lockportensis (13338) Dimerocrinites sp. (541 12935 13047 13050 13052 26854) | |
| Wenlock | Canada (Ontario) | Dimerocrinites lilliformis (26855) Dimerocrinites sp. (26687) | |
| Wenlock | USA (Iowa) | Dimerocrinites sculptus (26702) Dimerocrinites sp. (25019 25032 25034) | |
| Wenlock - Ludlow | USA (Wisconsin) | Dimerocrinites sp. (26701 26707) | |
| Wenlock - Ludlow | USA (Illinois) | Cyphocrinus chicagoensis, Dimerocrinites pentangularis, Dimerocrinites occidentalis, Dimerocrinites sp. (26770) Dimerocrinites sp. (26704 26705 26709) | |
| Wenlock - Ludlow | USA (Iowa) | Dimerocrinites pentangularis (26716) | |
| Wenlock - Silurian | USA (Wisconsin) | Dimerocrinites occidentalis, Dimerocrinites pentangularis (13069 13075) | |
| Gorstian | Australia (Victoria) | Dimerocrinitidae indet. (25711) | |
| Ludlow | USA (Indiana) | Dimerocrinitidae indet. (26688) | |
| Ludlow | USA (Illinois) | Dimerocrinites sp. (26861) | |
| Pridoli | Australia (Victoria) | Duncanicrinus calvariolus (39131) Nexocrinus wallanensis (39130) | |
| Lochkovian | USA (New York) | Dimerocrinites arborescens (26690) | |
| Lochkovian | Australia (Victoria) | Dimerocrinites bispinosus, Eudimerocrinus eckardti, Nexocrinus sp., Duncanicrinus calvariolus, Eucrinus clarkae (39125) Duncanicrinus calvariolus (39126) Eudimerocrinus eckardti (39121) Eudimerocrinus eckardti, Duncanicrinus calvariolus (39122) Eudimerocrinus gilli (39127) | |
| Lochkovian | Czechia | Dimerocrinites sp. (94439) | |
| Lochkovian | USA (Tennessee) | Dimerocrinites spp. (26786) | |
| Early/Lower Devonian | Argentina (Jachal) | Pterinocrinus australis (39230) | |
| Early/Lower Emsian | Germany | Macarocrinus semelfurcatus, Macarocrinus springeri, Macarocrinus terfurcatus, Pterinocrinus diensti, Pterinocrinus ehrlicheri (26904) | |
| Emsian | Bolivia | Griphocrinus branisai, Griphocrinus pirovanoi (139938) | |
| Emsian | France (Alsace) | Pterinocrinus tenuibrachiatus, Pterinocrinus sp. (40505) | |
| Late/Upper Emsian | Spain | Pterinocrinus decembrachiatus (223347) |