Milankovitch cycles
"Ctenosauriscus" was found in the Solling Formation, which was deposited about 247.5 to 247.2 million years ago in the latest Olenekian stage. This age is based on radiometric dating and records of Milankovitch cycles in the formation. "Ctenosauriscus" was traditionally thought to have lived during the Middle Triassic after Krebs placed the Middle Buntsandstein within the Anisian stage.