Errivaspis is an extinct genus of pteraspid heterostracan agnathan vertebrate known from fossils at the Wayne Hereford Quarry, of Early Devonian England, and of Podolia, Early Devonian Ukraine.

[1][2] Other later researchers would then mistakenly assume that Blieck synonymized the entire genus of Pteraspis into Errivaspis.

A rostral plate formed a pointed ‘snout’, several small plates around the mouth, and a dorsal spine pointing backwards.

The posterior half of the body was covered with small scales.

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