21155 - Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Calamites Precious association of 3 Squalicorax
Yard notes & kiln story
Description
21155 Premium Grade Soft Bodied Xiphosurid (Horseshoe Crab Ancestor) Lower Ordovician Calamites Precious association of 3 Squalicorax Precious association of 3 Squalicorax pristodontus (Crow Shark) from the phosphate deposits of the Ouled Abdoun Basin (Morocco) Olivine and pyroxene are quite similar under the petrography and electronic microscope images