sphenacodontian

From Wiktionary, the free dictionary
Jump to navigation Jump to search

English

[edit]

Noun

[edit]

sphenacodontian (plural sphenacodontians)

  1. (zoology) Any synapsid of the clade Sphenacodontia.
    • 2005, Thomas Stainforth Kemp, The Origin and Evolution of Mammals, page 26:
      The keel of the angular does have the deep form characteristic of the group, but it is not reflected laterally as occurs in other sphenacodontians.