Poraspis

<i>Poraspis</i>

Poraspis

Extinct genus of jawless fishes

Quick Facts Scientific classification ...

Poraspis is an extinct genus of heterostracan.[1] Fossils are found in Late Silurian and Early Devonian marine strata of Norway, Canada and the United States.

References

  1. [1]
    David K. Elliott & Michael A. Petriello (2011). "New poraspids (Agnatha, Heterostraci) from the Early Devonian of the western United States". Journal of Vertebrate Paleontology. 31 (3): 518–530. doi:10.1080/02724634.2011.557113.


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