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Bolboparia

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Kingdom
  
Animalia

Class
  
Trilobita

Family
  
Weymouthiidae

Phylum
  
Arthropoda

Order
  
Agnostida

Rank
  
Genus

Bolboparia

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Acidiscus, Bathydiscus, Acimetopus

Bolboparia is an extinct genus of eodiscinid agnostid trilobites. It lived during the late Lower Cambrian in what today Canada and the United States.

Contents

Taxonomy

Bolboparia is most closely related to Acidiscus and slightly more distantly to Stigmadiscus.

Description

Like all Agnostida, Bolboparia is diminutive and the headshield (or cephalon) and tailshield (or pygidium) are of approximately the same size (or isopygous) and outline. Like all Weymouthiidae, Bolboparia lacks eyes and rupture lines (or sutures). The short, downsloping glabella and the bulging cheeks give it a very peculiar aspect.

Distribution

  • Bolboparia superba and B. elongata are both known from the Lower Cambrian of the United States (unnamed formation, East Chatham Quad, Columbia County, New York State 42°24′N 73°30′W).
  • Bolboparia canadensis is only known from the Lower Cambrian of Canada (Olenellus-zone, calcarenite bed a half mile north of Elgin Station, south shore of the St. Lawrence River in Quebec).

    • References

    Bolboparia Wikipedia
    (Text) CC BY-SA


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