Tinodontidae is an extinct family of actively mobile mammals, endemic to what would now be North America, Asia, Europe, and Africa during the Jurassic and Cretaceous periods.PaleoBiology Database: Tinodontidae, basic info
Taxonomy Tinodontidae was named by Marsh (1887). It was assigned to Mammalia by Marsh (1887); and to Symmetrodonta by McKenna and Bell (1997).O. C. Marsh. 1887. American Jurassic mammals. The American Journal of Science, series 3 33(196):327-348 More recently, they have been recovered as more basal to symmetrodonts, though still within the mammalian crown-group.
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