Pair Of Large Lower Cambrian Trilobites (Longianda) - Issafen, Morocco

This is an impressive double Longianda termieri specimen from Issafen, Morocco. Both trilobites are quite large and 5.6" and 4.3" long and well prepared to bring them out in high relief against the rock. They have a layer of rust-red limonite around their borders which is typical of many trilobites from this locality.

In the past few years, deposits near Issafen, Morocco have begun yielding a new assemblage of Early Cambrian trilobites. This fauna is very diverse and consists mainly of ellipsocephalids, chengkouiids, gigantopygids, holmiids, neltneriids, saukiandids, and the latest fallotaspids. The shale when freshly split is a greenish to slightly yellow color but weathers to a light grey.

Trilobites were a very diverse group of extinct marine arthropods. They first appeared in the fossil record in the Early Cambrian (521 million years ago) and went extinct during the Permian mass extinction (250 million years ago). They were one of the most successful of the early animals on our planet with over 25k currently described species, filling nearly every evolutionary niche. Due in large part to a hard exoskeleton (shell), they left an excellent fossil record.


SOLD
DETAILS
SPECIES
Longianda termieri (Neltner & Poctey, 1950)
LOCATION
Issafen, Morocco
FORMATION
Issafen Formation
SIZE
5.6" & 4.3" long on 12.2 x 9.1" shale
SUB CATEGORY
ITEM
#233132
GUARANTEE
We guarantee the authenticity of all of our
specimens. Read more about our
Authenticity Guarantee.