DCT PhD student describes primitive Cambrian trilobites from Portugal and Spain.

This study was published in the Journal of Paleontology, in an article conducted by DCT PhD student Luis Collantes and researcher at the Geosciences Center at UC Sofia Pereira. The olenellid trilobites are one of the most primitive groups, being characteristic of the paleocontinent Laurentia during the lower Cambrian. In the Iberian Peninsula, which belongs to the peri-Gondwana region, the group is extremely rare (in Portugal only a single occurrence is known, in Vila Boim, Elvas, described in this work). The Iberian specimens studied were assigned to the genus Callavia, originally defined in eastern North America.

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