jueves, 15 de agosto de 2013

Fossils - Fosiles: Declivolithus Ordovician Trilobite - Links

Declivolithus Ordovician Trilobite

Declivolithus cf. alfredi

Trilobites Order Asaphida, Family Trinucleidae

Geological Time: Late Ordovician

Size (25.4 mm = 1 inch): 50 mm

Fossil Site: Ourzazate, Morocco

Description: This is an unusual trilobite from the late Ordovician of Morocco known as Declivolithus. First described from the Czech Republic, this one is most likely the same species. Note the ornamentation to the cephalic rim. To what purpose were the crenulations? Possibly they served some hydrodynamic function, helping to hold the trilobite on the seafloor in the presence of a current. Whatever the purpose, this is a dramatic example of the taxon, and q very 3-D example of this unusual Trinucelid.

Fossils - Fosiles: Declivolithus Ordovician Trilobite - Links


Crinoid - Crinoide

Fishes - Peces

Various - Varios

Amber - Ámbar

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