07757 - Top Quality 0.75 Inch Onnia sp Ordovician Trilobite Coltraneia Precious natural association of 2

Precious natural association of 2 vertebrae bones of this huge Paleocene shark

In the matrix that still surrounds the tooth

The pathological deformations in this species and in this place are very rare

vesicular masses

Ginglymostoma sp: Fossilworks (Paleobiology Database)

07757 - Top Quality 0.75 Inch Onnia sp Ordovician Trilobite Coltraneia Precious natural association of 2Onnia 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