Arauz Formation
The Arauz Formation is an Emsian fossiliferous stratigraphic unit in Spain.[1] It is a member of the Abadia Group. It is situated in the Province of Palencia, North Spain. It is in the north of Natural Park of Fuentes Carrionas and Fuente Cobre-Montaña Palentina where the Rio Arauz lies. It is from the Devonian of Spain.[2]
| Arauz Formation Stratigraphic range: Emsian ~407–392 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Abadia Group |
| Sub-units | Lezna & Requejada Members |
| Lithology | |
| Primary | Marl |
| Other | Shale, limestone |
| Location | |
| Coordinates | 43.0°N 0.9°W |
| Approximate paleocoordinates | 43.0°S 35.4°E |
| Region | Palencia |
| Country |  |
| Type section | |
| Named for | Arauz River |
  Arauz Formation (Spain) | |
Fossil content
The following fossils have been reported from the formation:[1]
- Trilobites
- Kayserops obsoletus
- Metacanthina cf. asnoensis
- Leonaspis sp.
- Metacanthina sp.
- Odontochile sp.
- Otarion (Maurotarion) sp.
- Xiphogonium sp.
- Phacopida indet.
- Cephalopods
- Erbenoceras advolvens
- Fidelites ruppachensis
- Gyroceratites gracilis
- G. aff. laevis
- Latanarcestes (Latanarcestes) noeggerathi
- Mimagoniatites bohemicus
- Mimosphinctes sp.
- Corals
- Cleistodictyum porosum
- Pleurodictyum microspinosum
- Procterodictyum polentinoi
- Combophyllum sp.
- Rugosa indet.
- Conodonts
- Tentaculita
- Rhynchonellata
- Arduspirifer arduennensis
- Bifida lepida
- Euryspirifer paradoxus
- Holynatrypa mirabilis
- Mauispirifer scutiformis
- Prokopia bouskai
- Schizophoria vulvaria
- Strophomenata
- Bojodouvillina (Bojodouvillina) morzakeci
- Crinostrophia aff. elegans
- Eodevonaria cf. jahnkei
- Plectodonta (Dalejodiscus) minor
- Strophochonetes sp.
References
- Arauz Formation in the Paleobiology Database
- Silur und Devon im Arauz-Gebiet (Prov. Palencia, N-Spanien). H. Jahnke, A. Henn, H. Mader and J. Schweineberg, 1983, Newsletters on Stratigraphy, 13(1), pages 40-66, doi:10.1127/nos/13/1983/40
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