caa a22 4500 388016825 CHVBK 20180307124913.0 cr unu---uuuuu 161130e199807 xx s 000 0 eng 10.1017/S0022336000040464 doi S0022336000040464 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000040464 The earliest Gastrochaenolites (Early Pennsylvanian, Arkansas, USA): An upper Paleozoic bivalve boring? [Elektronische Daten] [Mark A. Wilson, Timothy J. Palmer] Borings of the ichnogenus Gastrochaenolites have been found in limestone cobbles of the Morrowan (Early Pennsylvanian) Cane Hill Member of the Hale Formation in northwestern Arkansas. They were likely excavated by lithophagid bivalves, thus extending the earliest record of obligate bivalve boring back from the Triassic into the upper Paleozoic. These borings are herein referred to as G. anauchen n. ichnosp. Lithophagid borings may be rare in the upper Paleozoic because of the absence or scarcity of suitable substrates, such as scleractinian corals or carbonate hardgrounds. Additional upper Paleozoic bivalve borings will likely be discovered in other carbonate-rich rocky shore deposits. Copyright © The Paleontological Society Wilson Mark A. Department of Geology, The College of Wooster, Wooster, Ohio 44691 aut Palmer Timothy J. Institute of Geography and Earth Sciences, University of Wales, Aberystwyth, Ceredigion SY23 3DB, United Kingdom aut Journal of Paleontology Cambridge University Press 72/4(1998-07), 769-772 0022-3360 72:4<769 1998 72 JPA https://doi.org/10.1017/S0022336000040464 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000040464 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wilson Mark A. Department of Geology, The College of Wooster, Wooster, Ohio 44691 aut NATIONALLICENCE 700 1- Palmer Timothy J. Institute of Geography and Earth Sciences, University of Wales, Aberystwyth, Ceredigion SY23 3DB, United Kingdom aut NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/4(1998-07), 769-772 0022-3360 72:4<769 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge