MARC record from Internet Archive

LEADER: 02260cam 2200349 i 4500
001 211095
005 20071022130727.0
008 760106s1975 ilua b 00010 eng
010 $a7516540
035 $a(OCoLC)ocm01991971
035 $9AAW-3499
040 $aDLC$cDLC$dUIU$dm.c.1
050 0 $aQE1$b.F4 vol. 33, no. 9$aQL666.C539
082 $a550/.8 s$a598.1/3
100 10 $aGaffney, Eugene S.
245 10 $aPhylogeny of the chelydrid turtles :$ba study of shared derived characters in the skull /$cEugene S. Gaffney --.
246 37 $aChelydrid turtles
260 0 $aChicago :$bField Museum of Natural History,$c1975.
300 $ap. 157-178 :$b6 ill. ;$c24 cm.
440 0 $aFieldiana.$pGeology ;$vv. 33, no. 9
490 1 $aField Museum of Natural History. Publication$v1205
500 $aCaption title.
500 $a"August 18, 1975."
500 $a"This volume is dedicated to Dr. Rainer Zangerl."
504 $aIncludes bibliographical references (p. 176-178).
520 3 $aThe turtle genera Chelydra (Recent, North America), Macroclemys (Recent, North America), Platysternon (Recent, Asia), Protochelydra (Paleocene, North America), and Macrocephalochelys (Pliocene, Asia) are hypothesized as a strictly monophyletic group on the basis of a shared derived character study of the skull. The five genera are therefore placed in the Family Chelydridae. The primary characters used involved the degree of temporal and cheek emargination along with changes in bone size and shape in the skull roof. Protochelydra, with the most extensive emarginations is proposed as the primitive end of a morphocline series culminating in Platysternon, which has the least emarginate condition. Cranial diagnoses for the testudinoid families Chelydridae, Emydidae, and Testudinidae are included.
550 $aFieldiana 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-).
650 0 $aSnapping turtles
650 0 $aTurtles$xClassification.
650 0 $aReptiles$xAnatomy
650 0 $aSkull
830 0 $aPublication (Field Museum of Natural History) ;$v1205.