stereospondyl

 
Pronunciation: /ˌstɛrɪə(ʊ)ˈspɒndɪl, ˌstɪə-/

noun

  • a fossil amphibian with a broad flat head, occurring in the Permian and Triassic periods.
    • Suborder Stereospondyli, order Temnospondyli: several families

Origin:

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