30703 - Beautiful 0.67 Inch Onnia sp Ordovician Trilobite Brochantite Mongolia (9)
Yard notes & kiln story
Description
Mongolia (9)
† Xystridura
It inhabited the seas of the Paleocene between 60 and 55 million years ago
Undescribed Asaphid trilobite
Geochemistry: low-Ca pyroxene: Fs25
30703 - Beautiful 0.67 Inch Onnia sp Ordovician Trilobite Brochantite Mongolia (9)Onnia 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