£0.00View All
(0) Shopping Cart
Currency
FORTHCOMING EVENTS

   

The 'Virtual'

Festival of Geology 2020

Saturday 7th and Sunday 8th November 2020

Save the dates!​​​​​​​

  

​​​​​​​

ORTHOCERAS (TWO EXAMPLES ON ONE POLISHED SLAB) - 400 million years old - Morocco

« back
Home > FOSSILS > FOSSILS FROM THE PRECAMBRIAN AND PALAEOZOIC ERAS
 
ORTHOCERAS
(Two examples on one slab)


400 million years old


Rissani, near Erfoud, Morocco
 
A lovely polished example of the fossil orthoceras.

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: 17 x 7 x 1 centimetres
Weight: 218 grams

PRICE: £15.00
ORTHOCERAS (TWO EXAMPLES ON ONE POLISHED SLAB)  - 400 million years old - Morocco
ORTHOCERAS (TWO EXAMPLES ON ONE POLISHED SLAB)  - 400 million years old - Morocco ORTHOCERAS (TWO EXAMPLES ON ONE POLISHED SLAB)  - 400 million years old - Morocco ORTHOCERAS (TWO EXAMPLES ON ONE POLISHED SLAB)  - 400 million years old - Morocco ORTHOCERAS (TWO EXAMPLES ON ONE POLISHED SLAB)  - 400 million years old - Morocco