Ti12--Tibidy outcrop (Devonian of France)

Where: Brittany, France (48.3° N, 4.2° W: paleocoordinates 31.9° S, 22.0° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Polygnathus varcus conodont zone, Kersadiou Formation, Middle Givetian (383.0 - 380.2 Ma)

• Ti12; lower Polygnathus varcus

• group of beds-level stratigraphic resolution

Environment/lithology: concretionary, gray, cherty/siliceous shale and siltstone

• 10-15 m thick siliciclastic unit composed of grey to dark grey (almost black), shale and siltstone including several layers with dark grey siliceous concretions

Size classes: macrofossils, mesofossils

Preservation: concretion

Primary reference: R. B. Blodgett, J. Fryda, and P. R. Racheboeuf. 1999. Upper Middle Devonian (Givetian) gastropods from the Kersadiou Formation, Brittany, France. Journal of Paleontology 73(6):1081-1100 [A. Miller/K. Layou/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5917: authorized by Arnold Miller, entered by Karen Layou on 15.12.1999, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• genus names updated through pers. comm. with P. Wagner (12/99); taxonomy as presented in the publication are listed in the comments field
Show authors, comments, and common names
Gastropoda
 Bellerophontida - Bellerophontidae
Retispira ? sp.
Retispira ? sp. Knight 1945 snail
 Murchisoniina - Murchisoniidae
Murchisonia gourvenneci n. sp.
Murchisonia gourvenneci n. sp. Blodgett et al. 2003 snail
 Murchisoniina - Lophospiridae
"Finisterella tibidiensis n. sp." = Hanusispira tibidiensis
"Finisterella tibidiensis n. sp." = Hanusispira tibidiensis Blodgett et al. 1999 snail
 Murchisoniina - Gosseletinidae
Eoplatyzona ongaroae n. sp.
Eoplatyzona ongaroae n. sp. Blodgett et al. 1999 snail
 Murchisoniina - Eotomariidae
"Kersadiella babini n. sp." = Bembexia babini
"Kersadiella babini n. sp." = Bembexia babini Blodgett et al. 1999 snail
 Murchisoniina -
Subulitoidea indet.
Subulitoidea indet. Lindström 1884 snail
 Euomphalina - Platyceratidae
"Brokenriveria cf. caelata" = Brokenriveria caelatus, Platyceras sp.
"Brokenriveria cf. caelata" = Brokenriveria caelatus Goldfuss 1844 snail
Platyceras sp. Conrad 1840 snail