Semionotidae
fish family
Quick Summary
The Semionotidae are an extinct family of fishes that lived during the Triassic period. These fish, characterized by their deep bodies, small mouths with grinding teeth, and rhomboid scales, are found in fossils from America, Europe, and Africa.1
The genus Semionotus is the type genus for this family. Semionotids are sometimes considered ancestral to modern freshwater gars. The term "semionotid" can be used as an adjective referring to the family or as a noun for a fish belonging to the Semionotidae family.2134
Summary created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
4 Britannica Sources
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.
