Lepidaspis_serrata

<i>Lepidaspis</i>

Lepidaspis

Extinct genus of jawless fishes

Lepidaspis serrata ("serrated scaly shield") is an extinct heterostracan jawless fish from Early Devonian Canada. Its scientific name refers to the fact that the armor is composed of hundreds of tiny scales with serrated edges.

Lepidaspis serrata cast. Mackenzie Mountains, Northwest Territories (Canada). At the Royal Tyrrell Museum of Palaeontology.

Quick Facts Scientific classification, Species ...

Although it is regarded as a heterostracan, its exact placement within Heterostraci is regarded as incertae sedis, as the fact that it is currently impossible to discern where its dorsal and ventral plates (which are made up of a mosaic of the aforementioned tiny scales) end or begin. Some experts regard it as being descended from the basal heterostracans of the Silurian.

References

  1. [1]
    Haaramo, Mikko (2007). "†Pteraspidomorphi". Mikko's Phylogeny Archive. Retrieved 30 December 2016.
Stub icon

This article about Pteraspidomorphi is a stub. You can help Wikipedia by expanding it.

Stub icon

This article related to a Devonian jawless fish is a stub. You can help Wikipedia by expanding it.
Share this article:

This article uses material from the Wikipedia article Lepidaspis_serrata, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.