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Inadunata

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	189489	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=189489

Rank

infraclass (PBDB)

Taxonomy (PBDB)

Life : Animalia : Echinodermata : Crinoidea : Inadunata

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
-	Ambulacraria
phylum	Echinodermata	Klein 1754
subphylum	Crinozoa	Matsumoto 1929
class	Crinoidea	Miller 1821
subclass	Pentacrinoidea	Jaekel 1918
subclass	Inadunata

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Inadunata	subclass	belongs to Crinoidea	stated with evidence	Regnell, 1948
Inadunata	subclass	belongs to Crinoidea	stated without evidence	Burke, 1977
Inadunata	subclass	belongs to Crinoidea	stated with evidence	Parsley, 1981
Inadunata	infraclass	belongs to Pentacrinoidea	stated with evidence	Wright et al., 2017
Inadunata	infraclass	belongs to Pentacrinoidea	stated without evidence	Ausich et al., 2018
Inadunata	infraclass	belongs to Pentacrinoidea	stated with evidence	Wright et al., 2019

Status (PBDB)

extant

Taxon Size (PBDB)

1,848

Extant Size (PBDB)

66 (3.6%)

First Recorded Appearance

485 - 479 Ma
Paleozoic

Environment

marine (based on Echinodermata)

Motility

stationary, attached (based on Crinoidea)

Vision

blind (based on Crinoidea)

Diet

suspension feeder (based on Crinoidea)

Reproduction

dispersal=water,planktonic (based on Echinodermata)

Ontogeny

accretion,addition of parts (based on Echinodermata)

Taphonomy

high Mg calcite (based on Crinoidea)

Primary Reference (PBDB)

D. F. Wright, W. I. Ausich, and S. R. Cole, M. E. Peter, E. C. Rhenberg. 2017. Phylogenetic taxonomy and classification of the Crinoidea (Echinodermata). Journal of Paleontology 91(4):829-846

Subtaxa

Name	Status	Fossil Occurrences	Oldest	Youngest
Disparata ✝ order	listed (PBDB)
Fistulata ✝ suborder	listed (PBDB)
Larviformia ✝ suborder	listed (PBDB)
Pentamerocrinidae ✝ family	listed (PBDB)	2	470 Ma Middle Ordovician	467 Ma Middle Ordovician
Poteriocrinidae ✝ family	accepted (GBIF) listed (PBDB)	47	388 Ma Middle Devonian	336 Ma Carboniferous
Cladida unranked clade	listed (PBDB)	4,927	478 Ma Early/Lower Ordovician	0 Ma Extant
Disparida ✝ unranked clade	listed (PBDB)	1,434	485 Ma Cambrian	269 Ma Permian

Synonymy List

Year	Name and Author
1897	Inadunata Wachsmuth and Springer
1948	Inadunata Regnell
1977	Inadunata Burke p. 174
1979	Inadunata Frest et al. p. 406
1979	Inadunata Haugh p. 18
1981	Inadunata Parsley

Year	Name and Author
1984	Inadunata Donovan
1986	Inadunata Donovan
2017	Inadunata Wright et al.
2018	Inadunata Ausich et al.
2018	Inadunata Mao et al. p. 1069
2019	Inadunata Wright et al.

References

Wright D. F., Ausich W. I., et al (2017) Phylogenetic taxonomy and classification of the Crinoidea (Echinodermata), Journal of Paleontology 91 4, 829-846 doi:10.1017/jpa.2016.142

Regnell G. (1948) Swedish Hybocrinida (Crinoidea Inadunata Disparata; Ordovician-Lower Silurian), Arkiv for Zoologi 40 9, 1-27

Burke J. J. (1977) Eperisocrinus new genus (Crinoidea, Inadunata): type species Delocrinus missouriensis Miller and Gurley, 1890, Ohio Journal of Science 77 4, 174-178

Frest T. J., Strimple H. L., et al (1979) Two new crinoids from the Ordovician of Virginia and Oklahoma, with notes on pinnulation in the Disparida, Journal of Paleontology 53, 399-415

Haugh B.N. (1979) Late Ordovician channel-dwelling crinoids from southern Ontario, Canada, American Museum Novitates 2665, 1-25

Parsley R. L. (1981) Echinoderms from Middle and Upper Ordovician rocks of Kentucky, United States Geological Survey Professional Paper 1066-K, 1-9

Donovan S. K. (1984) Ramseyocrinus and Ristnacrinus from the Ordovician of Britain, Palaeontology 27, 623-634

Donovan S. K. (1986) A new genus of inadunate crinoid with unique stem morphology from the Ashgill of Sweden, Palaeontology 29, 235-242

Ausich W. I., Wright D. F., et al (2018) Disparid and hybocrinid crinoids (Echinodermata) from the Upper Ordovician (lower Katian) Brechin Lagerstätte of Ontario, Journal of Paleontology 92 5, 850-871 doi:10.1017/jpa.2017.154

Mao Y. Y., Webster G. D., et al (2018) A new crinoid fauna from the Taiyuan Formation (early Permian) of Henan, North China, Journal of Paleontology 92, 1066-1080

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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