Extinct genus of jawless fishes
Lochriea
Temporal range: Visean–Serpukhovian
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Scientific classification
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Kingdom:
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Genus:
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†Lochriea
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Species
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- †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
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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
- ^ 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