Article · Wikipedia archive · Last revised Jul 20, 2026

Vidria

Vidria is a genus of proetid trilobites belonging to the family Phillipsiidae. Vidria vespa 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.

Last revised
Jul 20, 2026
Read time
≈ 1 min
Length
94 w
Citations
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Source
Vidria
Temporal range:
Reconstruction of adult and juvenile
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Artiopoda
Class: Trilobita
Order: Proetida
Family: Phillipsiidae
Subfamily: Ditomopyginae
Genus: Vidria
Weller, 1944

Vidria is a genus of proetid trilobites belonging to the family Phillipsiidae. Vidria vespa 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

References

References

  1. Weller, J. Marvin. "Permian trilobite genera." Journal of Paleontology (1944): 320-327.
  • Proetida fact sheet [1]