Near Fluminimaggiore. Mason Porcus section (Devonian of Italy)

Also known as Patrocardia evolvens evolvens Community, Lower Lochkovian, SW Sardinia

Where: Sardinia, Italy (39.5° N, 8.5° E: paleocoordinates 54.6° S, 47.9° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Icriodus woschmidti woschmidti conodont zone, Fluminimaggiore Formation, Lochkovian (419.2 - 410.8 Ma)

• In this study, isolated blocks were correlated on basis of contained conodonts. "Lowermost Lochkovian"

• member-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal wackestone and calcareous shale

• "High abundance of infaunal and epibyssate forms...reclining forms are also characteristic...low diversity...Low current activity, a low oxygen content and a sea bottom below wave base may be presumed."
• General for this formation: "45-50 m thick alternation of black calcareous lenticular layers (peloid-cephalopod-ostracod wackestone-packstones grading to mudstones) with dark non calcareous pelites and shales. The upper part of the formation is characterized by more marly limestones and terminates with a crinoid bioclastic packstone horizon."

•For this community: "Mostly disarticulated...bivavles are preserved in the dark biomicritic to biodetrital limestone bed."

Size class: macrofossils

Collection methods: Table 11 gives numerical abundances and inferred life habits of bivalves.

Primary reference: J. Kříž and E. Serpagli. 1993. Upper Silurian and lowermost Devonian Bivalvia of Bohemian type from south-western Sardinia. Bolletino della Societa Paleontologica Italiana 32(3):289-347 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 26189: authorized by Michael Foote, entered by Michael Foote on 07.10.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Crinoidea
 Monobathrida - Scyphocrinitidae
Scyphocrinites elegans
Bivalvia
 Myalinida - Lunulacardiidae
Patrocardia evolvens
Patrocardia evolvens Barrande 1881 clam
 Ostreida - Posidoniidae
""Astarte" moneta" = Posidonomya moneta
""Astarte" moneta" = Posidonomya moneta Barrande 1881 oyster
 Ostreida - Pterineidae
Leptodesma sp.
Leptodesma sp. Hall 1883 oyster
 Cyrtodontida - Antipleuridae
Panenka bohemica, Panenka debilis, Panenka aff. adornata, ? Praelucina sp., Dualina aff. comitans
? Praelucina sp. Barrande 1881 clam
Dualina aff. comitans Barrande 1881 clam