Callavia

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title: "Callavia" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["olenellina", "cambrian-trilobites", "fossils-of-canada", "fossils-of-the-united-states", "monotypic-trilobite-genera", "paleontology-in-newfoundland-and-labrador", "paleontology-in-nova-scotia", "paleozoic-life-of-nova-scotia", "redlichiida-genera"] topic_path: "science/earth-science" source: "https://en.wikipedia.org/wiki/Callavia" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

| regnum = Animalia | phylum = Arthropoda | classis = Trilobita | ordo = Redlichiida | subordo = Olenellina | superfamilia = Judomioidea | familia = | genus = Callavia | genus_authority = Matthew, 1897 | subdivision_ranks = Species | subdivision =

  • C. broeggeri Walcott, 1890

  • C. callavei Raw in Walcott, 1910

  • C. choffati Collantes et. al., 2021 | synonyms =

  • Callavia crosbyi- synonym of C. broeggeri

  • Nevadia crosbyi- synonym of C. broeggeri

  • Olenellus (Holmia) broegeri- synonym of C. broeggeri

  • Olenellus (Mesonacis) broegeri- synonym of C. broeggeri

  • Paradoxides choffati- synonym of C. choffati

  • Callavia hastata- synonym of C. callavei

  • Callavia? lotzei- synonym of C. choffati

Callavia is an extinct genus of trilobite arthropods. Callavia lived during the late Atdabanian stage, which lasted from 530 to 524 million years ago during the early part of the Cambrian Period in what are today Canada and the United States.

Taxonomy

The position of Callavia in relation to other Olenellina has shifted repeatedly over time. Initially it was assigned to the Holmiinae by Pierre Hupé, and was later moved back and forth to the Callaviinae. Lieberman, however, argues Callavia is a basal member of the Judomioidea.

Reassigned Species

Distribution

C. broeggeri is known from the Lower Cambrian of Newfoundland (Brigus Formation, Branchian Series, Conception Bay), Nova Scotia (between Docters Brook and Malignant Brook, northernmost Antigonish Highlands), Canada, and Massachusetts, USA (Weymouth Formation, Pearl street, North Weymouth, and probably Hoppin Hill Reservoir,North Attleboro). C. choffati is known from the Iberian Peninsula in the Elvas Municipality in Portugal and in several localities in the Huelva Province, Spain. C. callavei is found in the Comley Limestone in Shropshire, England.

Ecology

C. broeggeri occurs together with the bracihiopods Sunnaginia imbricata and Eccentrotheca kanesia, and the agnostid Serrodiscus bellimarginatus.

References

References

  1. (1998). "Cladistic analysis of the Early Cambrian olenelloid trilobites". Journal of Paleontology.
  2. Lieberman, B.S.. (2001). "Phylogenetic analysis of the ''Olenellina'' Walcott, 1890 (Trilobita, Cambrian)". Journal of Paleontology.
  3. Sepkoski, Jack. (2002). "A compendium of fossil marine animal genera (Trilobita entry)". Bulletins of American Paleontology.
  4. (1993). "Through a Glass Darkly: Taxonomy, Phylogeny and Biostratigraphy of the Olenellina". The University of Kansas Paleontological Contributions.
  5. (2021). "On ''Callavia'' (Trilobita) from the Cambrian Series 2 of Iberia with systematic status of the genus". Journal of Paleontology.
  6. Landing, E.. (1995). "Upper Placentian-Branchian series of mainland Nova Scotia (middle-upper Lower Cambrian) faunas, paleoenvironments, and stratigraphic revision". Journal of Paleontology.
  7. [https://paleobiodb.org/classic/displayCollResults?collection_no=9350 Paleobiology Database]

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olenellinacambrian-trilobitesfossils-of-canadafossils-of-the-united-statesmonotypic-trilobite-generapaleontology-in-newfoundland-and-labradorpaleontology-in-nova-scotiapaleozoic-life-of-nova-scotiaredlichiida-genera