30811 - Well Prepared 0.77 Inch Onnia sp Ordovician Trilobite Coelacanth (1999): Prognathodon stadtmanni: (Mosasauridae) a
Yard notes & kiln story
Description
(1999): Prognathodon stadtmanni: (Mosasauridae) a new species from the Mancos Shale (Lower Campanian) of Western Colorado
Dixon 1850 (ray-finned fish)
Top quality
It has some glued and filled fractures
Solenoparia
30811 - Well Prepared 0.77 Inch Onnia sp Ordovician Trilobite Coelacanth (1999): Prognathodon stadtmanni: (Mosasauridae) aOnnia sp, Bancroft 1933 (trilobite) Trilobita Asaphida Trinucleidae Parent taxon: Trinucleidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Ecology: fast moving low level epifaunal suspension feeder Age range: 460. 9 to 443. 7 Ma