Otarionella lkomalii

Trilobites Order Proetidae, Family Aulacopleuridae, Subfamily Otarioninae

Geological Time: Middle Devonian, Early Eifelian Stage

Size: Trilobite is 13 mm long by 13 mm wide (with spines) on a 55 by 85 mm matrix.

Fossil Site: El Otfal Formation, Jebel Oudriss, Morocco

Code: 17169

Price: Sold

Fossil Description: Unusual example of a member of the Order Proetida, Family Aulacopleurida with a pair of thoracic spines. It is a member of the genus Otarionella. The derivation of the genus name comes from its similarity with Otarion, while the species was named after a Moroccan trilobite collector who was the source of the first example. Since its discovery nearly a decade ago it has been rarely available, with this one being only the second I have been able to offer. Note the coin in one photo; its 25 mm diameter shows just how small this trilobite is. Reference: Geological Magazine, 2008, 145 (1), pp 55-71.