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avancna — Gustavaspis trinodis
Published: 2010-07-11 20:26:06 +0000 UTC; Views: 1678; Favourites: 24; Downloads: 0
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Description
The kiaeraspid osteostracan Gustavaspis trinodis, from the Early Devonian Spitsbergen Fauna, in what is now Norway.This genus is the only osteostracan genus with the mouth set at the front of the headshield, as opposed to just underneath the anterior end.
