21551 - Top Huge Spiny 4.62 Inch Drotops armatus Middle Devonian Trilobite Calcite Otarion spinicaudatum

Otarion spinicaudatum

The sample is mainly composed of euhedral to subhedral clinopyroxene and olivine phenocrysts in a fine-grained groundmass

The rock contains scattered crystals of clinopyroxene (augite)

Nice and really rare specimen of middle Devonian

21551 - Top Huge Spiny 4.62 Inch Drotops armatus Middle Devonian Trilobite Calcite Otarion spinicaudatumPrecious specimen of this enormous species of spiny triolobite. This trilobite has been prepared carefully, during many hours of work. It has several restored fractures. The eyes facets are quite well preserved. Most of the spines have been restored. Drotops is a genus of trilobites from the order Phacopida, family Phacopidae that lived during the Eifelian of the Middle Devonian. It was described by Struve in 1990 under type species Drotops