Lochriea

Lochriea is an extinct genus of conodonts.

Lochriea
Temporal range:
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
†Conodonta
Genus:
†Lochriea

Scott 1942[1]
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

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)
  • "Lochriea" at the Encyclopedia of Life
  • "Lochriea". Fossilworks. Retrieved 5 July 2016 from the Paleobiology Database.{{cite web}}: CS1 maint: postscript (link)


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