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The 'Virtual'

Festival of Geology 2020

Saturday 7th and Sunday 8th November 2020

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ORTHOCERAS POLISHED EGG - Morocco

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Home > FOSSILS > FOSSILS FROM THE PRECAMBRIAN AND PALAEOZOIC ERAS

ORTHOCERAS POLISHED 'EGG'

Rissani near Erfoud, Morocco
 
Polished 'egg' of this 400 million year old limestone containing a fossil Orthoceras. A small plastic stand is included (as shown).


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:  5 centimetres tall
Weight: 136 grams

PRICE: £6.00