02363cam a2200325Ia 4500 4519288 20071024124204.0 020408s2002 ilua b 000 0 eng d (OCoLC)ocm49534930 IBT IBT AGL UIU (pbk.) 500 C432G new ser. no. 46 L700 QE1 .F4 n.s., no.46 QE862.S33 UIUU NO Rieppel, Olivier. The dermal armor of the cyamodontoid placodonts (Reptilia, Sauropterygia) : morphology and systematic value / Olivier Rieppel --. The dermal armor of the cyamodontoid placodonts Chicago, Ill. : Field Museum of Natural History, 2002. iii, 41 p. : 32 ill. ; 26 cm. Fieldiana. Geology, 0096-2651 ; new ser., no. 46 Publication ; 1517 "Accepted November 7, 2001. Published February 28, 2002." Includes bibliographical references (p. 39-41). The dermal armor of cyamodontoid placodonts is described and discussed in detail. A review of all available data on the ontogeny and phylogeny of the cyamodontoid dermal armor precedes the discussion of its value in placodont systematics. The cyamodontoid dermal armor is known from Middle to Upper Triassic fossil remains found in the Germanic and Alpine Triassic and at various circum-Mediterranean localities, most notably Makhtesh Ramon in the Negev, as well as in southern China. This paper recognizes five, possibly six species of cyamodontoids from the Middle Triassic of Makhtesh Ramon, two of them new. The morphology of the cyamodontoid dermal armor is compared in detail to the morphology of the turtle shell. The similarity is shown to be superficial only. The study concludes with comments on the functional anatomy of the cyamodontoid dermal armor. Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-1978). Fieldiana Geology New Series No. 1 began June 29, 1979. Placodontia Morphology. Placodontia Classification Publication (Field Museum of Natural History) ; 1517. 02 UIU