Tinodon Temporal range:
Oxfordian-
early Berriasian,
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†Tinodon
Marsh, 1879
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†Tinodon bellus Marsh, 1879
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Tinodon is an extinct genus of mammal alive 155–140.2 million years ago ( Oxfordian- Berriasian) which has been found in the Morrison Formation ( United States), [2] the Alcobaça Formation ( Portugal) and the Lulworth Formation ( England). It is of uncertain affinities, being most recently recovered as closer to therians than eutriconodonts but less so than allotherians. [3] Two species are known: T. bellus (Marsh, 1879) and T. micron (Ensom & Sigogneau-Russell, 2000 [1]).