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Wenlock and Pridoli (Silurian) crinoids from Saaremaa, western Estonia (Phylum Echinodermata)

  • William I. Ausich (a1), Mark A. Wilson (a2) and Olev Vinn (a3)
Abstract
Abstract

Study of new collections of the Wenlock and Pridoli, Silurian, crinoids from Saaremaa, western Estonia, result in taxonomic revision, expanded ranges, and new taxa. Eucalyptocrinites regularis and Periechocrinus laevis are recognized outside of Sweden for the first time. Desmidocrinus laevigatus Ausich et al., 2012 is reassigned to Methabocrinus. Because the type species of Methabocrinus was previously known only from glacial sediments, the age and provenance of this genus are constrained for the first time. A new crotalocrinitid, Velocrinus coniculus new genus and species, is described. Although the Pridoli faunas of western Estonia contain only twelve species-level taxa assigned to nine genera, this fauna is one of the four richest Pridoli faunas known.

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This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

W.I. Ausich , M.A. Wilson , and O. Vinn , 2012, Crinoids from the Silurian of Western Estonia: Acta Palaeontologica Polonica, v. 57, p. 613631.

B.D. Cramer , C.E. Brett , M.J. Melchin , P. Männik , M.A. Kleffner , P.I. McLaughlin , D.K. Loydell , A. Munnecke , L. Jeppsson , C. Corradini , F.R. Brunton , and M.R. Saltzman , 2010, Revised correlation of Silurian provincial series of North America with global and regional chronostratigraphic units and δ13Ccarb chemostratigraphy: Lethaia, v. 44, p. 185202, doi: 10.1111/j.1502-3931.2010.00234.x.

S.K. Donovan , D.A.T. Harper , and E. Håkansson , 2007, The root of the problem: palaeoecology of distinctive crinoid attachment structures from the Silurian (Wenlock) of Gotland: Lethaia, v. 40, p. 313320, doi: 10.1111/j.1502-3931.2007.00030.x.

C. Franzén , 1977, Crinoid holdfasts from the Silurian of Gotland: Lethaia, v. 10, p. 219234, doi: 10.1111/j.1502-3931.1977.tb00617.x.

T.W. Kammer , C.D. Sumrall , S. Zamora , W.I. Ausich , and B. Deline , 2013, Oral region homologies in Paleozoic crinoids and other plesiomorphic pentaradial echinoderms: PLoS-ONE, v. 8, no. 11, 16 p. doi: 10.1371/journal.pone.0077989.

F. Springer , 1906, Discovery of the disk of Onychocrinus and further remarks on the Crinoidea Flexibilia: Journal of Geology, v. 14, p. 467523.

C.D. Sumrall , and J.A. Waters , 2012, Universal elemental homology in glyptocystitoids, hemicosmitoids, coronoids, and blastoids: steps toward echinoderm phylogenetic reconstruction in derived Blastozoa: Journal of Paleontology, v. 86, p. 956972, doi: 10.1666/12-029R.1.

G. Ubaghs , 1958, Morphologie et position systématique de Methabocrinus erraticus Jaekel (Crinoidea Camerata): Paläontologische Zeitschrift, v. 32, p. 5262.

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Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
  • URL: /core/journals/journal-of-paleontology
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