Goasquellou, Tibidy Formation (Devonian of France)

Where: Bretagne, France (48.3° N, 4.2° W: paleocoordinates 32.0° S, 22.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Tibidy Formation (Troaon Group), Middle Givetian (383.0 - 380.2 Ma)

• Lower Polygnathus varcus zone, Middle Givetian

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified siltstone and lithified limestone

• thick sandy beds with thin silty layers

Size class: macrofossils

Primary reference: A. Botquelen and P. R. Racheboeuf. 2008. Benthic paleoecology in the givetian: an example from the Kersadiou Formation (massif armoricain, NW France). Palaios 23:246-259 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 84101: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 17.09.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Productellidae
 Orthotetida - Chilidiopsidae
Xystostrophia sp. Havlicek 1965
 Strophomenida - Chonetidae
 Strophomenida - Anopliidae
 Strophomenida - Douvillinidae
 Strophomenida - Rafinesquinidae
Rhynchonellata
 Spiriferida - Spinocyrtiidae
 Athyridida - Nucleospiridae
Nucleospira sp. Hall 1859
 Atrypida - Atrypidae
 Spiriferinida - Cyrtinidae
Cyrtina sp. Davidson 1858
 Rhynchonellida - Trigonirhynchiidae