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

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

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

PDF) Connecting ring structure and its significance for classification of the Orthoceratid Cephalopods

Orthoceras Fossil Specimen - 500 million years old

WatanGems 237.4g, 7.1x2x0.8, Fossils Orthoceras (Straight Horn) Squid Polished Mineral, Specimen, Nautiloid Cephalopod Paleozoic, Decor, Collectible @Morocco, B30007 : Industrial & Scientific

PDF) Connecting ring structure and its significance for classification of the Orthoceratid Cephalopods

PDF) Connecting ring structure and its significance for classification of the Orthoceratid Cephalopods

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

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

PDF) Soft−tissue attachments in orthocerid and bactritid cephalopods from the Early and Middle Devonian of Germany and Morocco

.com: WatanGems 1925 Grams, 7.75x6.3x1.7, Rough/Polished Black Fossils Orthoceras Plate (Straight Horn) Squid, Plaque, Home Decor Gemstone,B23468 : Industrial & Scientific

Orthoceras Specimen- #22 Plus information on This Incredible Hunter