A metamorphosed salamander from the early cretaceous of Las Hoyas, Spain

被引：53

作者：

Evans, SE ^{[1
]}

Milner, AR ^{[1
]}

机构：

[1] UNIV LONDON BIRKBECK COLL, DEPT BIOL, LONDON WC1E 7HX, ENGLAND

来源：

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1996年 / 351卷 / 1340期

关键词：

D O I：

10.1098/rstb.1996.0061

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A salamander, Valdotriton gracilis gen. et sp, nov., is described on the basis of six articulated skeletons of small metamorphosed individuals from the early Barremian (Early Cretaceous) La Huerguina Formation at the locality of Las Hoyas, Cuenca Province, Castilla La Mancha, Spain. Valdotriton is a relatively plesiomorphic member of the Urodela (crown-group salamanders), but more derived than the Sirenidae and Cryptobranchoidea, in that it possesses a single ossification in place of the prearticular and angular, and it has intravertebral spinal foramina on the anterior caudal vertebrae. It represents a plesion on the stem of the 'internally fertilizing salamander clade' comprising the Plethodontidae, Amphiumidae, Rhyacotritonidae, Proteidae, Dicamptodontidae, Ambystomatidae and Salamandridae.

引用

页码：627 / 646

页数：20

共 59 条

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