caa a22 4500 388017686 CHVBK 20180307124915.0 cr unu---uuuuu 161130e199805 xx s 000 0 eng 10.1017/S0022336000024215 doi S0022336000024215 pii (NATIONALLICENCE)cambridge-10.1017/S0022336000024215 Vermeij Geerat J. Department of Geology and Center for Population Biology, University of California at Davis, Davis 95616 <vermeij@geology.ucdavis.edu> Sabia on shells: A specialized Pacific-type commensalism in the Caribbean Neogene [Elektronische Daten] [Geerat J. Vermeij] In the Recent biota, species of the hipponicid gastropod genus Sabia that excavate characteristic pits on the outer surfaces of shells of reef-dwelling gastropods and hermit crabs occur only in the tropical Indo-West Pacific region and in adjacent warm-temperate parts of Japan and Australia. I report the discovery of Sabia pits in reef-associated gastropod shells from the Cercado (late Miocene) and Gurabo (early Pliocene) Formations of the Dominican Republic. The likely culprit was Hipponix otiosa Pilsbry and Johnson, 1917, a species here reassigned to Sabia Gray, 1840. Pliocene extinction, which was far more severe in the Caribbean and elsewhere in the western Atlantic than in the Indo-West Pacific, selectively eliminated Sabia and its commensalism from Atlantic reef ecosystems. This case is one of several examples indicating the vulnerability of specialized associations to extinction-causing disturbances. Copyright © The Paleontological Society Journal of Paleontology Cambridge University Press 72/3(1998-05), 465-472 0022-3360 72:3<465 1998 72 JPA https://doi.org/10.1017/S0022336000024215 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022336000024215 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Vermeij Geerat J. Department of Geology and Center for Population Biology, University of California at Davis, Davis 95616 <vermeij@geology.ucdavis.edu> NATIONALLICENCE 773 0- Journal of Paleontology Cambridge University Press 72/3(1998-05), 465-472 0022-3360 72:3<465 1998 72 JPA CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge