United States (15: Georgia
Color changes from bluish gray to rusty brown closest to the fractures are observed
This enormous Prognathodon jaw is preserved in exceptional way
Nileidae stenorhachis
deep subtidal (9)
30197 - Positive/Negative 1.39 Inch Barrandia cordai Ordovician Trilobite - Wales Mosasaur pathologically deformed United States (15: GeorgiaBarrandia, McCoy 1849 (trilobite) Trilobita Asaphida Nileidae PaleoDB taxon number: 19871 Parent taxon: Nileidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Aocaspis, Berkutaspis, Borthaspidella, Homalopteon, Illaenopsis, Kodymaspis, Neopsilocephalina, Nileidae stenorhachis, Nileus, Parabarrandia, Paraperaspis, Peraspis, Petrbokia, Platypeltoides, Poronileus, Psilocephalinella, Shenjiawania, Symphysurina,