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Caudata Look for this name in NCBI Wikipedia Animal Diversity Web
http://palaeo-electronica.org/content/fc-1 Benton et al. 2015
node minimum age |
The Brushy Basin Member of the Morrison Formation is dated as Kimmeridgian or early Tithonian. The upper boundary of the Early Tithonian is 147.7 Ma Â± 0.9 Myr (Gradstein et al., 2012, pp. 764, 777), so 146.8 Ma.
node maximum age |
The soft maximum constraint is based on the possibility that the Kirtlington â€˜Salamander Bâ€™ might be a crown caudate, lowering the age estimate to Late Bathonian, and indeed, the range is extended to the base of the Middle Jurassic, dated as 174.1 Ma Â± 1.0 Myr, so 175.1 Ma.
|primary fossil used to date this node|
Iridotriton is identified as a member of Salamandroidea, and hence crown Caudata, by the possession of several apomorphies, including the presence of spinal nerve foramina in the tail.
Evans, S.E., Lally, C., Chure, D.C., Elder, A., and Maisano, J.A. 2005. A late Jurassic salamander (Amphibia: Caudata) from the Morrison formation of North America. Zoological Journal of the Linnean Society, 143:599–616.
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