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Lochriea

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Extinct genus of jawless fishes

Lochriea
Temporal range: Visean–Serpukhovian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: †Conodonta
Genus: †Lochriea
Scott 1942
Species
  • †Lochriea costata
  • †Lochriea commutata (P1 type element)
  • †Lochriea cruciformis
  • †Lochriea monocostata
  • †Lochriea montanaensis (M type element)
  • †Lochriea mononodosa
  • †Lochriea multinodosa
  • †Lochriea nodosa
  • †Lochriea saharae
  • †Lochriea scotiaensis
  • †Lochriea senkenbergica
  • †Lochriea ziegleri

Lochriea is an extinct genus of conodonts.

Use in stratigraphy

The Visean, the second age of the Mississippian, contains four conodont biozones, two of which are named after Lochriea species:

  • the zone of Lochriea nodosa
  • the zone of Gnathodus bilineatus
  • the zone of Lochriea commutata
  • the zone of Pseudognathodus homopunctatus

The Serpukhovian, the third or youngest age of the Mississippian, includes three conodont biozones, one of which is named after Lochriea species:

  • the zone of Gnathodus postbilineatus
  • the zone of Gnathodus bollandensis
  • the zone of Lochriea ziegleri

References

  1. Conodont Assemblages from the Heath Formation, Montana. Harold W. Scott, Journal of Paleontology, Vol. 16, No. 3 (May, 1942), pp. 293-300 (Stable URL)

External links

Taxon identifiers
Lochriea


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