caa a22 4500 388016868 CHVBK 20180307124913.0 cr unu---uuuuu 161130e199807 xx s 000 0 eng 10.1017/S0022336000040476 doi S0022336000040476 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000040476 Ophiomorpha irregulaire (Trace Fossil): Redescription from the Cretaceous of the Book Cliffs and Wasatch Plateau, Utah [Elektronische Daten] [Richard G. Bromley, A. A. Ekdale] The trace fossil Ophiomorpha irregulaire Frey, Howard and Pryor, 1978, has been described chiefly from the Campanian (Upper Cretaceous) of the Book Cliffs of Carbon County, central Utah, U.S.A. Owing to the lack of type specimens and a well-defined type locality, a neotype and new paratypes are designated. Abundant material in the Spring Canyon Member of the Blackhawk Formation at Coal Creek Canyon, Book Cliffs, serves to supply a type locality and allows a more detailed description of the trace fossil than has been available hitherto, leading to an emended diagnosis. At the type locality, O. irregulaire is a shallow-tier trace fossil occurring in marine, delta-front or back-barrier, muddy, fine-grained sandstone. It probably represents the work of a crustacean deposit feeder. Copyright © The Paleontological Society Bromley Richard G. Geologisk Institut, University of Copenhagen, ⊘ster Voldgade 10, DK-1350 Copenhagen K, Denmark aut Ekdale A. A. Department of Geology and Geophysics, University of Utah, Salt Lake City, 84112 aut Journal of Paleontology Cambridge University Press 72/4(1998-07), 773-778 0022-3360 72:4<773 1998 72 JPA https://doi.org/10.1017/S0022336000040476 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000040476 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bromley Richard G. Geologisk Institut, University of Copenhagen, ⊘ster Voldgade 10, DK-1350 Copenhagen K, Denmark aut NATIONALLICENCE 700 1- Ekdale A. A. Department of Geology and Geophysics, University of Utah, Salt Lake City, 84112 aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/4(1998-07), 773-778 0022-3360 72:4<773 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge