Vidria

Vidria vespa is a proetid trilobite belonging to the family Phillipsiidae. The fossils are found in Middle Permian-aged marine strata of Western Texas. It is unique among Permian-aged trilobites in having a posterior spine emanating from the pygidium of the adult (two such posterior spines are present in immature individuals).^[1]

Vidria Temporal range: Guadalupian PreꞒ Ꞓ O S D C P T J K Pg N
reconstruction of adult and juvenile
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Proetida
Family:	Phillipsiidae
Genus:	Vidria Weller, 1944
Binomial name
Vidria vespa Weller, 1944[1]