A trigonotarbid arachnid from the Pennsylvanian Astrasado Formation of the Kinney Brick Quarry, New Mexico

Authors

  • Jason A. Dunlop Museum für Naturkunde, Leibniz Institute for Research on Evolution and Biodiversity at the Humboldt University Berlin Invalidenstraße 43, D-10115 Berlin, Germany
  • Yinan Wang Arlington, VA
  • Paul A. Selden Department of Geology University of Kansas Lawrence, KS 66045, USA and Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK
  • Paula Krautz Poelchaustraße 26, D-12681 Berlin, Germany

DOI:

https://doi.org/10.17161/PC.1808.14824

Abstract

A new eophrynid trigonotarbid (Arachnida: Trigonotarbida: Eophrynidae) from the Pennsylvanian (Kasimovian) Astrasado Formation of the Kinney Brick Quarry, New Mexico is described. This fossil – the first arachnid to be recorded from the Astrasado Formation – is preserved primarily as a dorsal opisthosoma. Pleophrynus hawesi sp. nov. diagnostically preserves evidence for three pairs of posterior opisthosomal spines rather than the two usually seen in other eophrynids. A comparison of opisthosomal tuberculation patterns among the best known eophrynid species is included. At ca. 304.0–306.5 Ma, our new taxon represents one of the youngest records of Eophrynidae, while the Kinney Brick Quarry is only the twelfth site in North America to yield trigonotarbid arachnids; compared to more than 60 such localities in Europe.

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Published

2014-07-25

Issue

No. 9 (2014)

Section

Articles

License

Copyright (c) 2014 Jason A. Dunlop, Yinan Wang, Paul A. Selden, Paula Krautz

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How to Cite

Dunlop, Jason A., Yinan Wang, Paul A. Selden, and Paula Krautz. 2014. “A Trigonotarbid Arachnid from the Pennsylvanian Astrasado Formation of the Kinney Brick Quarry, New Mexico”. Paleontological Contributions, no. 9 (July): 1-6. https://doi.org/10.17161/PC.1808.14824.