30799 - Well Prepared 0.83 Inch Onnia sp Ordovician Trilobite Chalcedonized Gastropods Specimen like this has been
Yard notes & kiln story
Description
Specimen like this has been photographed and published as a novelty at the 2016 Ste
As it corresponds with the family Odontopleuridae and Phacopidae
Enchodus saevus
7 g Classification
Toernquistina
30799 - Well Prepared 0.83 Inch Onnia sp Ordovician Trilobite Chalcedonized Gastropods Specimen like this has beenOnnia 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