Journal of Paleontology; September 2007; v. 81; no. 5;
p. 998-1008; DOI: 10.1666/pleo05-091.1
© 2007 Paleontological Society
ORDOVICIAN BRYOZOANS FROM THE KANOSH FORMATION (WHITEROCKIAN) OF UTAH, USA
ANDREJ ERNST1,
PAUL D. TAYLOR2 and
MARK A. WILSON3
1 Institut für Geowissenschaften, Universität Kiel, Ludewig-Meyn-Strasse 10, D-24118, Kiel, Germany, <ae{at}gpi.uni-kiel.de>
2 Department of Palaeontology, Natural History Museum, Cromwell Road, London SW7 5BD, United Kingdom, <p.taylor{at}nhm.ac.uk>
3 Department of Geology, The College of Wooster, Wooster, Ohio 44691, USA <mwilson{at}wooster.edu>
The Kanosh Formation of the Great Basin of western North America contains the oldest abundant and moderately diverse bryozoan fauna known from North America. Six species are here described from this formation at Ibex in the Confusion Range, Utah. They comprise three species of esthonioporine stenolaemates and three trepostomes. Two new genera (Ibexella and Kanoshopora) and three new species (I. multidiaphragmata, K. droserae, and Eridotrypa hindsi) are introduced. The endozone of Kanoshopora n. gen. is very unusual among bryozoans in being filled with vesicles that are divided by beaded walls into longitudinal files close to the boundary with the exozone.
Copyright © 2009 by Paleontological Society