Data from: New taxa and revised stratigraphic distribution of the crinoid fauna from Anticosti Island, Québec, Canada (Late Ordovician-Early Silurian)

Ausich, William I., The Ohio State University

Cournoyer, Mario E.

Published Apr 22, 2019 on Dryad. https://doi.org/10.5061/dryad.2j0b93b

Cite this dataset

Ausich, William I.; Cournoyer, Mario E. (2019). Data from: New taxa and revised stratigraphic distribution of the crinoid fauna from Anticosti Island, Québec, Canada (Late Ordovician-Early Silurian) [Dataset]. Dryad. https://doi.org/10.5061/dryad.2j0b93b

Abstract

End-Ordovician extinctions had a profound effect on shallow-water benthic communities, including the Crinoidea. Further, recovery after the extinctions resulted in a macroevolutinary turnover in crinoid faunas. Anticosti Island is the most complete Ordovician-Silurian boundary section recording shallow-water habitats. Both new taxa and changes in Anticosti Island stratigraphic nomenclature are addressed herein. New taxa include Becsciecrinus groulxi n. sp., Bucucrinus isotaloi n. sp., Jovacrinus clarki n. sp., Plicodendrocrinus petryki n. sp., Plicodendrocrinus martini n. sp., Thalamocrinus daoustae n. sp., and Lateranicrinus saintlaurenti n. gen and sp. The status of Xenocrinus rubus as a boundary-crossing taxon is confirmed, range extensions of several taxa are documented, and the distribution of crinoids with the revised stratigraphic nomenclature is documented.

Usage notes

AusichCouronyer-OnlineSupplementalData

Additional Systematic Notes on Anticosti crinoids

AusichCournoyer_SuppTable1

Supplemental Table 1. Katian crinoid faunas of Anticosti Island.

AusichCournoyer_SuppTable2

Supplemental Table 2. Hirnantian crinoid faunas of Anticosti Island.

AusichCournoyer_SuppTable3

Supplemental Table 3. Rhuddanian crinoid faunas of Anticosti Island. In addition, Xenocrinus rubus is known from talus of the Becscie Formation, but the member is not known.

AusichCournoyer_SuppTable4

Supplemental Table 4. Aeronian crinoid faunas of Anticosti Island. Becsciecrinus groulxi n. sp., Bucucrinus isotaloi n. sp., Laternicrinus saintlaurenti n. gen. n. sp., Plicodendrocrinus petryki n. sp., Thalamocrinus daoustae n. sp., and Xenocrinus rubus are from unspecified outcrops along the Jupiter River and are considered either Aeronian or Telychian in age. In addition, Eomyelodactylus sparteus Eckert, 1990, is recognized from an unknown member of the Gun River Formation.

AusichCournoyer_SuppTable5

Supplemental Table 5. Telychian crinoid faunas of Anticosti Island. Becsciecrinus groulxi n. sp., Bucucrinus isotaloi n. sp., Laternicrinus saintlaurenti n. gen. n. sp., Plicodendrocrinus petryki n. sp., Thalamocrinus daoustae n. sp., and Xenocrinus rubus are from unspecified outcrops along the Jupiter River and are considered either Aeronian or Telychian in age.

AusichCournoyer_SuppTable6

Supplemental Table 6. Bucucrinus species diagnostic table.

AusichCournoyer_SuppTable7

Supplemental Table 7. Becsciecrinus species diagnostic table.

AusichCournoyer_SuppTable8

Supplemental Table 8. Jovacrinus species diagnostic table.

AusichCournoyer_SuppTable9

AusichCournoyer_SuppTable10

Supplemental Table 10. Thalamocrinus species diagnostic table. Note, Thalamocrinus arenaceus Jell and Theron, 1999 is not included in this diagnostic table.

AusichCournoyer_SuppTable11

Supplemental Table 11. Diagnostic table for the species of the Plicodendrocrinus.

Funding

National Science Foundation, Award: EAR-0205968

Location

Canda

Quebec