On the type material of the Upper Ordovician mitrate “carpoid” Diamphidiocystis drepanon Kolata & Guensburg (Echinodermata: Stylophora)

Sam Heads; Dennis Kolata; Thomas Guensburg

doi:10.21900/j.kentiana.n3.1179

On the type material of the Upper Ordovician mitrate “carpoid” Diamphidiocystis drepanon Kolata & Guensburg (Echinodermata: Stylophora)

Authors

Sam Heads
Dennis Kolata
Thomas Guensburg

DOI:

https://doi.org/10.21900/j.kentiana.n3.1179

Keywords:

Homalozoa, Mitrata, Anomalocystitidae, Diamphidiocystis, type specimens, collections

Abstract

We document the formal transfer of the holotype, seven paratypes, and two referred specimens of the mitrate “carpoid” Diamphidiocystis drepanon Kolata & Guensberg (Echinodermata: Stylophora) from the Department of Geology, Southern Illinois University (SIU) to the paleontological collection of the Illinois State Geological Survey (ISGS) at the PRI Center for Paleontology. A tabulated list of the specimens cross-referenced with their new ISGS numbers is provided. The specimens come from the Cincinnatian (Upper Ordovician) Orchard Creek Shale (Maquoketa Group) near Thebes in Alexander County, southern Illinois.

References

Kolata, D.R. & Guensburg, T.E. 1979. Diamphidiocystis, a new mitrate “carpoid” from the Cincinnatian (Upper Ordovician) Maquoketa Group in southern Illinois. Journal of Paleontology 53: 1121–1135.

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Kentiana-3-2023

Published

2023-02-08

Issue

No. 3 (2023): On the type material of the Upper Ordovician mitrate "carpoid" Diamphidiocystis drepanon Kolata & Guensburg (Echinodermata: Stylophora)

Section

Articles

License

This work is licensed under a Creative Commons Attribution 4.0 International License.