Friday Salamander Blogging

Spotted Salamander Posted by Hello

California Tiger Salamander Posted by Hello

Life Cycle Posted by Hello

Salamanders first appeared in the Jurassic. It is believed that they evolved from lpospondyles such as the microsauria. Salamanders are considered to be the least specialized of amphibians – mainly due to their conservative body plan. One interesting feature in salamander evolution is the secondary loss of bone and it’s replacement with cartilage.

Cladogram Posted by Hello

Salamander 2 fossil Posted by Hello

Recently, a large number of salamander fossils have been found in volcanic ash in China. The preservation was excellent -including many details of soft tissue anatomy.

Salamander 1 fossil Posted by Hello

Amphibians and Reptiles in Great Lakes Wetlands

California Tiger Salamander

China Ash Yields Salamander Evolution Secrets

Salamander

Evolution: Library: Ring Species: Salamanders

Evolution of salamander life cycles: A major effect QTL …

Speciation, phylogeography and evolution of life history and …

Evolving Before Our Eyes / Songbirds and salamanders bolster Darwin’s theory that change in habitat can create 2 species from one

Major fossil find reveals Asian origins of salamanders

University of Chicago Hospitals: New species of earliest-known salamanders found in China

Article 1 – Evolution of Modern Amphibians, by Lenny Frank

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2 Responses

  1. An interesting debate was overlooked by some of your sources; the california tiger salamander Ambystoma tigrinum ca. is difficult to identify firmly. In the early part of the 20th century the buildinng of canals and flood protection zones and the loss of native habitat allowed an intermixing of several discrete populations (sorry at work and don’t have the source). What we call A.tigrinum ca. may be a hybrid of several species. Can anyone back me up on this?

  2. It’s definately a ring species… I’ll have to do some checking and see what I can find out.

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