A-C. Orthoceras scabridum Angelin, 1880. A. Median section of a

Vintage Design Unique, Rare and Authentic Fossil of Orthoceras. Orthoceras are squid-like marine cephalopods over 354 million years old. These fossils

Plum Orthoceras Fossil, 1800s

Full article: Siphuncular structures in Calciosiphonate nautiloid orders Actinocerida, Orthocerida and Barrandeocerida (Cephalopoda)

WatanGems 145g, 6.6x1.8x0.5, Fossils Orthoceras (Straight Horn) Squid Polished Mineral, Specimen, Nautiloid Cephalopod Paleozoic, Decor, Collectible @Morocco, B30001 : Industrial & Scientific

A-C. Orthoceras scabridum Angelin, 1880. A. Median section of a septal

Orthoceras: Amazing Nautiloid hunter of The Paleozoic Era

Orthoceras Fossil Specimen - 500 million years old

Orthoceras Fossil Specimen - 500 million years old

Fossils Orthoceras (straight horn) On Rough Marble Matrix SQUID from Morocco Fossils Orthoceras Plate Plaque well polished for home or office

WatanGems 1140 Grams, 6.75x7.5x1.2, Rough/Polished Black Fossils Orthoceras Plate (Straight Horn) Squid, Plaque, Home Decor Gemstone,B23454

WatanGems 134.5g, 5.9x1.8x0.6, Fossils Orthoceras (Straight Horn) Squid Polished Mineral, Specimen, Nautiloid Cephalopod Paleozoic, Decor, Collectible @Morocco, B29995 : Industrial & Scientific