plural noun

: an order of extinct amphibians (suborder Lepospondyli) of the Pennsylvanian and Lower Permian that resemble salamanders, are sometimes considered ancestral to modern apodal and caudate amphibians, or are placed among the primitive reptiles
in some classifications : an order or other group of amphibians equivalent to Lepospondyli (see Lepospondyli sense a)

Word History


New Latin, from micr- + -sauria

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Dictionary Entries Near Microsauria

Cite this Entry

“Microsauria.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Microsauria. Accessed 26 Feb. 2024.

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