30799 - Well Prepared 0.83 Inch Onnia sp Ordovician Trilobite Chalcedonized Gastropods Cyphaspis sp : Fossilworks (Paleobiology
Yard notes & kiln story
Description
Cyphaspis sp : Fossilworks (Paleobiology Database)
Toernquistina
Arambourg and Joleaud 1943
Mass:help 75
As it corresponds with the family Odontopleuridae and Phacopidae
30799 - Well Prepared 0.83 Inch Onnia sp Ordovician Trilobite Chalcedonized Gastropods Cyphaspis sp : Fossilworks (PaleobiologyOnnia 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