Fossils have been found from the Early Permian San Angelo Formation in Texas.

Slaugenhopia was found from the San Angelo Formation within the Kahn Quarry of Driver Ranch in Knox County, Texas.

Although it was known only from fragments, paleontologist Everett C. Olson reconstructed the entire skull when he named the genus in 1962.

[2] Slaugenhopia continued to be classified as a trimerorhachid until 1999 when a new dvinosaur called Thabanchuia was named from South Africa.

Another Early Permian dvinosaur called Kourerpeton is also known from Texas and may be related to Slaugenhopia.