7.5" x 2.4" Black Fossils Orthoceras Coke Bottle Hand Carved Shiny Polish,MF1181
Weight: About 996 Grams
Length: About 7.5" or so
Thickness/Width: About 2.4" or so
Location of Origin: Atlas Mountains, Morocco
Age of Fossils: 240 Millions -500 Millions Years Old or So
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Orthoceras ("straight horn") is a genus of extinct nautiloid cephalopod. This genus is sometimes called Orthoceratites. Note it is sometimes misspelled as Orthocera, Orthocerus or Orthoceros (Sweet 1964:K222).
Orthoceras fossils are common and have a global distribution, occurring in any marine rock, especially in limestone.
These are slender, elongate shells with the middle of the body chamber transversely constricted, and a subcentral orthochoanitic siphuncle. The surface is ornamented by a network of fine lirae (Sweet 1964:K224). Many other very similar species are included under the genus Michelinoceras.