double(2) Polished Fossil orthoceras in Matrix approx 100-130 mm 4-5" morocc

double(2) Polished Fossil orthoceras in Matrix approx 100-130 mm 4-5" morocc

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Polished Orthoceras Fossile Small Archeology Specimen The study of complex creatures that inhabited the Earth millions of years ago takes us to the orthoceras (straight horn). It is a genus of extinct nautiloid cephalopod. Orthoceras fossils are common and have a global distribution, occuring in any marine rock, especially limestones. Orthoceras are slender, elongate shells with the middle of the body tconstricted, and a subcentral orthochoanitci siphuncle. The surface is ornamented by a network of fine lirae.