From the Cretaceous,Maastrichtian .
Collected from Weston county Wyoming USA From private land origin.
Really nice well defined elliptical, curved bone,this specimen is clearly one of the rib bones from the classic Ceratopsian from the old films of the 50s and 60s!
Triceratops meaning three horned face ,were herbivorous dinosaurs reaching around 10 foot high and 30 foot long this,slow moving dinosaur is definitely one of my favourites.
The specimen measures 110mm x 33mm .