Leonaspis is a widespread genus of odontopleurid trilobite that lived from the Late Ordovician to the late Middle Devonian.[1] Fossils of various species have been found on all continents except Antarctica.

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References

  1. ^ Feist, Raimund; McNAMARA, Kenneth J. (September 2007). "Biodiversity, distribution and patterns of extinction of the last odontopleuroid trilobites during the Devonian (Givetian, Frasnian)". Geological Magazine. 144 (5): 777–796. Bibcode:2007GeoM..144..777F. doi:10.1017/s0016756807003779. ISSN 1469-5081. S2CID 128918534.


Allikas: http://en.wikipedia.org/wiki/Leonaspis
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