LA-29--Lanvoy outcrops (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 (388.1 - 383.7 Ma)

• Section LA-29; Polygnathus varcus (lower)

• group of beds-level stratigraphic resolution

Environment/lithology: concretionary, black, 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 5916: authorized by Arnold Miller, entered by Karen Layou on 15.12.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• genus names are updated through pers. comm. with P. Wagner (12/99); taxonomy as presented in the published article are listed in the comments field
Gastropoda
 Murchisoniina - Palaeozygopleuridae
Palaeozygopleura sp. HornĂ½ 1955 snail
 Murchisoniina - Subulitidae
"Subulites (Fusispira) sp." = Fusispira
"Subulites (Fusispira) sp." = Fusispira Hall 1872 snail
 Murchisoniina - Murchisoniidae
Parahormotomina sibertae n. sp. Blodgett et al. 1999 snail
 Murchisoniina - Lophospiridae
"Finisterella tibidiensis n. sp." = Hanusispira tibidiensis
"Finisterella tibidiensis n. sp." = Hanusispira tibidiensis Blodgett et al. 1999 snail
 Murchisoniina - Gosseletinidae
Breizospira crozonensis n. sp., "Angyomphalus (Eoangyomphalus) weyanti n. subgen. n. sp." = Eoangyomphalus weyanti, Eoplatyzona ongaroae n. sp.
Breizospira crozonensis n. sp. Blodgett et al. 1999 snail
"Angyomphalus (Eoangyomphalus) weyanti n. subgen. n. sp." = Eoangyomphalus weyanti Blodgett et al. 1999 snail
Eoplatyzona ongaroae n. sp. Blodgett et al. 1999 snail
 Bellerophontida - Bucanellidae
Crenistriella armoricana n. sp. Blodgett et al. 1999 snail
 Bellerophontida - Bellerophontidae
Retispira ? sp. Knight 1945 snail
 Bellerophontida - Pterothecidae
"Patellilabia (Phragmosphaera) ponceti n. sp." = Phragmosphaera ponceti
"Patellilabia (Phragmosphaera) ponceti n. sp." = Phragmosphaera ponceti Blodgett et al. 1999 snail
 Bellerophontida - Tropidodiscidae
Sinuitina morzadeci n. sp. Blodgett et al. 1999 snail
Tropidodiscus sp. Meek and Worthen 1866 snail
 Euomphalina - Platyceratidae
"Brokenriveria cf. caelata" = Brokenriveria caelatus
"Brokenriveria cf. caelata" = Brokenriveria caelatus Goldfuss 1844 snail
 Neritoidea - Naticopsidae
Naticopsis sp. M'Coy 1844 snail