Todiltia

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Todiltia is an extinct group of early bony fish from the Middle Jurassic. It was first described in 1942 as Leptolepis schoewei, but in 1984 scientists placed it in its own genus, Todiltia, named after the Todilto Limestone of the Wanakah Formation where it was found. Fossils have been discovered in Colorado and New Mexico, dating to the lower Callovian stage of the Middle Jurassic. Many specimens from different growth stages have been found, with the largest known skull-to-tail specimen (NMNH 17899) measuring about 12.4 cm. The original description was by Dunkle in 1942, and Schaeffer & Patterson reassigned it to Todiltia in 1984.