Fossil remains of Proterogyrinus have been found in Scotland, UK, and West Virginia, United States, and date back to the Serpukhovian (mid-Carboniferous period), which is from about 331 to 323 million years ago. The genus was originally named by renowned vertebrate paleontologist Alfred Sherwood Romer in 1970.
Fossil evidence of Proterogyrinus has been found in Scotland, UK, and West Virginia, United States, dating from the Serpukhovian (mid-Carboniferous period), which occurred between about 331 to 323 million years ago. The genus was first identified by Alfred Sherwood Romer, a prominent vertebrate paleontologist, in 1970.