Lochriea

Lochriea is an extinct genus of conodonts.

Lochriea Temporal range: Visean–Serpukhovian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Infraphylum:	Agnatha
Class:	†Conodonta
Order:	†Ozarkodinida
Superfamily:	†Polygnathacea
Genus:	†Lochriea Scott, 1942[1]
Species[citation needed]
†Lochriea costata †Lochriea commutata (P1 type element) †Lochriea cruciformis †Lochriea monocostata †Lochriea montanaensis (M type element) †Lochriea monocarinata[2] †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