Definition of stereospondyl in English:

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Pronunciation: /ˌstɛrɪə(ʊ)ˈspɒndɪl/
Pronunciation: /ˌstɪərɪə(ʊ)ˈspɒndɪl/


A fossil amphibian with a broad flat head, occurring in the Permian and Triassic periods.
  • Suborder Stereospondyli, order Temnospondyli: several families.
Example sentences
  • One lineage of stereospondyls, the Trematosauridae, actually took up a life in the oceans, the only stem tetrapods ever to have done so.
  • Somewhere between the granddaddy stereospondyl and Trematosaurus there is a branch leading to hundreds of other species of stereospondyl, including metoposaurs, plagiosaurs, batrachosaurs and many, many others.
  • The exhibit showed the flat skull of the stereospondyls and explained that they had large and unusually flat skulls and that the bones were solidly fused.


Early 20th century: from modern Latin Stereospondyli (plural), from Greek stereos 'solid' + spondulos 'vertebra'.

For editors and proofreaders

Line breaks: stereo|spon¦dyl

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