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The Rock Professor has provided you with a mineral
information card. Print on stock paper, and cut out to
enhance your rock and mineral products.
To print: with your cursor, highlight the entire card below,
right click and select print, then click on "selection"
and print.
| THE ROCK PROFESSOR |
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Image by Roger Weller,
Cochise College
From Wikipedia.com
Author: Arthur Weasley
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ORTHOCERAS FOSSIL
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SQUIDS FROM THE SAHARA?
In these shells lived Orthoceras, an ancient mollusk whose fossil shells are found and polished in the Sahara Desert of Morocco. In the Devonian geologic period, some 350 million years ago, these ocean dwellers, reaching a length of up to 6 feet, swam in an Ocean which covered the area. After death, their shells were preserved in the black marble where they are found today. They moved by ejecting water through an opening and by moving their tentacles. The tentacles caught food while their parrot-shaped beaks cut the food up.
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Scientific classification - Kingdom: Animalia; Phylum: Mollusca; Class: Cephalopoda; Subclass: Nautiloidea; Order: Orthocerida; Family: Orthoceratida; Genus: Orthoceras ♦ Localities: Atlas Mountains in Morocco, Scandinavia, the Alps, and Iowa (USA)..
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