The species placement was formally changed with the publication of a paper authored by Arnold based on new fossil specimens collected near the former mining camp of Ashnola, British Columbia approximately 8 miles south of Princeton along the Similkimeen River.
The species placement was formally changed with the publication of a paper authored by Dr Chester Arnold. Based on new fossil specimens collected near the former mining camp of Ashnola, British Columbia approximately 8 miles south of Princeton along the Similkimeen River.