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On the skull of Placodus gigas and the relationships of the Placodontia

1987; Taylor & Francis; Volume: 7; Issue: 2 Linguagem: Inglês

10.1080/02724634.1987.10011648

1937-2809

Hans‐Dieter Sues,

Morphological variations and asymmetry

ABSTRACT A previously undescribed, excellently preserved skull of the placodontoid Placodus gigas from the upper Muschelkalk of southern Germany shows a number of features that link the Placodontia to the Diapsida. A large quadratojugal forms much of the temporal bar. Posttemporal fenestrae are well-developed. No evidence exists to support a close relationship between Placodontia and Sauropterygia or between Placodontia and Ichthyopterygia.