Arauz Formation

Arauz Formation
Arauz Formation
Stratigraphic range: Emsian; ~
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	Spain
Type section
Named for	Arauz River
	Arauz Formation (Spain)

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]

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
- Icriodus bilatericrescens
- I. corniger
- I. culicellus
- I. fusiformis
- I. sigmoidalis
- Ozarkodina steinhornensis
- Polygnathus dehiscens
- P. gronbergi
- P. perbonus
- Icriodus sp.
Tentaculita
- Nowakia barrandei
- N. cancellata
- N. elegans
- N. richteri
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.

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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