Argille Azzurre, Stirone River [Lugagnano Fm] (Pliocene of Italy)

Where: Italy (44.8° N, 10.0° E: paleocoordinates 44.5° N, 10.4° E)

When: Lugagnano Formation, Zanclean (5.3 - 3.6 Ma)

• VERBATIM STRATIGRAPHY: A hydrocarbon seep complex of late Pliocene age has been recently described in detail from strata of the Argille Azzurre (Lugagnano Formation). Discrete hydrocarbon-imprinted carbonate bodies of different thick- ness and degree of lithification and host muddy sediment punctuate the Stirone section at the Zanclean/Piacenzian boundary.

Environment/lithology: deep-water; poorly lithified mudstone

• VERBATIM ENVIRONMENT: A hydrocarbon seep complex.....the benthic foraminifera and mollusk fauna indicate a depositional depth not exceeding 500 m (Cau et al. 2015).
• VERBATIM LITHOLOGY: Discrete hydrocarbon-imprinted carbonate bodies of different thick- ness and degree of lithification and host muddy sediment. LITHIFICATION: Poorly lithified based on figured specimens.

Size class: macrofossils

Preservation: mold/impression

Collection methods: surface (in situ),

• REPOSITORY: Museo Geologico Giovanni Capellini, University of Bologna, Italy, Museo Civico di Scienze Naturali, Faenza, Italy, Zoological Museum, University of Bologna, Italy. COLLECTOR: The material was collected by the authors and co-workers over many years since 1997.

Primary reference: S. Kiel and M. Taviana. 2018. Chemosymbiotic bivalves from the late Pliocene Stirone River hydrocarbon seep complex in northern Italy. Acta Palaeontologica Polonica 63 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 194847: authorized by Austin Hendy, entered by Austin Hendy on 01.07.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for mollusca. Foraminifera also mentioned to be present; see Cau et al. (2015).
Show authors, comments, and common names
Bivalvia
 Solemyida - Solemyidae
Acharax doderleini
Acharax doderleini Mayer 1861 Awning Clam
 Cardiida - Vesicomyidae
Isorropodon aff. perplexum
Isorropodon aff. perplexum Sturany 1896 clam
 Lucinida - Lucinidae
Megaxinus stironensis n. sp., Megaxinus ellipticus, Lucinoma sp., Lucinoma persolida, Anodontia sp.
Megaxinus stironensis n. sp. Kiel and Taviana 2018 clam
Megaxinus ellipticus Borson 1825 clam
Lucinoma sp. Dall 1901 clam
Lucinoma persolida Sacco 1901 clam
Anodontia sp. Link 1807 clam