The size of olivine crystals range 0
Heisdorf Formation (limestone) (Devonian of Germany) and Morocco
A fine rim is observed on the sample
slowly drawn during millions of years via fossil-diagenetic processes
It only has some glued and tiny filled fractures but no fabrication
08318 - Nicely Preserved 2.50 Inch Hollardops merocristata Middle Devonian Mawsonia The size of olivine crystalsNicely well preserved and prepared specimen. Nice eyes facets. Hollardops sp, Morzadec 1997 (trilobite) Trilobita Phacopida Acastidae Synonyms: Modellops Lieberman and Kloc 1997 (no. 259054), Philipsmithiana Lieberman and Kloc 1997 (no. 259046) Parent taxon: Acastidae according to P. A. Jell and J. M. Adrain 2002 See also Lieberman and Kloc 1997 Sister taxa: Acastava, Acaste, Acastella, Acastellina, Acastocephala, Acastoides, Acastopyge, Alcaldops,