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Armored fish – Larnovaspis

$199

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SKU: 7995 Categories: , Tags: , , ,

Description

Larnovaspis
Fish
Lower Devonian (Pridolian)
Dniester Formation
Zalishchyky, Podolia, Ukraine

78mm shield on 120mm slab.

Larnovaspis is a genus of armored jawless fishes of the Subclass Heterostraci.  In this group the head is armored with bony plates with body less-protected by smaller scales.  Casts of the interior surface of the head plates have allowed scientists to study the exterior of the brain and the sensory systems.

Heterostracans diversified in the Silurian but died out by the end of the Devonian.