30812 - Well Preserved 0.83 Inch Onnia sp Ordovician Trilobite Calymenella It has fine glued fracture

It has fine glued fracture

parietal with triangular table ornamented by transverse undulated ridges and a lenticular foramen

NHM Catalogue: 5th Edition (2000) IAB

2014) but to date it is known only from its anterior appendages

There is yet a lot to be known about these fascinating theropods

30812 - Well Preserved 0.83 Inch Onnia sp Ordovician Trilobite Calymenella It has fine glued fractureOnnia 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