07983 - Superb Bug Eyed 2.02 Inch Coltraneia effelesa Middle Devonian Trilobite Brochantite They can therefore be referred

They can therefore be referred to as petrified lightning

Barrande 1887

which in the search of teeth

and in the production of certain glasses and enamels

inside his own left hemi-maxillary bone

07983 - Superb Bug Eyed 2.02 Inch Coltraneia effelesa Middle Devonian Trilobite Brochantite They can therefore be referredNicely well preserved and prepared specimen. Nice eyes facets. Coltraneia sp, Lieberman and Kloc 1997 (trilobite) Trilobita Phacopida Acastidae Full reference: B. S. Lieberman and G. J. Kloc. 1997. Evolutionary and biogeographic patterns in the Asteropyginae (Trilobita, Devonian) Delo, 1935. Bulletin of the American Museum of Natural History 232: 1 127 Parent taxon: Acastidae according to B. S. Lieberman and G. J Kloc 1997 Sister taxa: Acastava,