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ORTHOCERAS - 400 million years old - Erfoud, Morocco

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Home > FOSSILS > FOSSILS FROM THE PRECAMBRIAN AND PALAEOZOIC ERAS
 
ORTHOCERAS

400 million years old


Rissani, near Erfoud, Morocco
 
A nice polished example of the fossil Orthoceras.  Presented in a lidded gift box.

Orthoceras is a primitive marine animal with a tapering cylindrical shell made up of closely-spaced chambers.  It is related to the ammonites. It was common in the seas 400 million years ago and must have been an active swimmer, scavenging on small animals.

Orthoceras became extinct at the end of the Triassic period. The fossils are in black limestone that was originally a mud on the ancient sea floor. The fossils themselves are preserved in white calcite which makes a stunning contrast to the limestone. 
  
Click on a picture for a larger image

Size: 10 x 9 x 1.5 centimetres
Weight: 204 grams

PRICE: £10.00