Ferrisaurus is a genus of leptoceratopsid ceratopsian dinosaur from the Sustut Basin (Tango Creek Formation) in British Columbia, Canada. The type and only species is Ferrisaurus sustutensis. It is the first non-avian dinosaur described from British Columbia.
Ferrisaurus is a genus of leptoceratopsid ceratopsian dinosaur from the Sustut Basin (Tango Creek Formation) in British Columbia, Canada. The type and only species is Ferrisaurus sustutensis. It is the first non-avian dinosaur described from British Columbia.
==Discovery and naming== thumb|left|Provenance of the holotype specimen of Ferrisaurus During 1971 Canadian geologist Kenny F. Larsen discovered dinosaur remains while exploring the Sustut Basin in north-central British Columbia while prospecting for Thorium, the first found in the province. The fossils were discovered because they were slightly radioactive, from a talus deposit along a railway cut near the confluence of Birdflat Creek and Sustut River. Larsen's imprecise field notes and lack of a field map complicate identification of the exact stratigraphic unit the fossils came from. Matrix remaining on the bones is a dark grey sandy siltstone, the area around the fossil discovery is multiple beds of sandstone, mudstone, conglomerate and shale, with slightly radioactive bitumen seams. These deposits are part of the Sustut Group, and Canadian palaeontologists Victoria Arbour and Milton Graves interpreted their characteristics in 2008 as suggesting that the fossils were found in the Lower Laslui Member of the Brothers Peak Formation. Larsen originally held onto the fossils until 2004, when he donated them to Dalhousie University before being accessioned by the Royal BC Museum in 2006 as RBCM.EH.2006.019.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).