Synziphosurine

$199

In stock

Description

Early Ordovician (Arenigian)

Upper Fezouata Formation

Zagora, Draa Valley, Morocco

7mm positive on 58mm slab.

Arthropod.

A synziphosurine is a member of a suborder of arthropods, Synziphosurina, ancestral to the Order Xiphosura, which includes extinct and modern horseshoe crabs.

You have to be pretty ancient to be the ancestor of horseshoe crabs.

Additional information

Weight 120 g