Borelli (Miocene of Italy)

Where: Italy (45.1° N, 7.9° E: paleocoordinates 44.8° N, 7.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Montaldo Member (Sant'Agata Fossili Formation), Tortonian (11.6 - 7.2 Ma)

• Later based on the abundant and well-preserved foraminifers (d’Onofrio et al. 1975), and on the basis of pteropods (Pavia & Robba 1979) the age of the sediments was referred as Early Messinian. However, a more recent revision of the pteropod fauna of Tetti Borelli indicates again a Tortonian age (Janssen 2012). In his monograph, Janssen (2012) also refers to renewed foraminifera analysis which confirms the Tortonian age.

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; poorly lithified sandstone

• Deep-water marine sediments. On the basis of the taxonomic composition refer to deeper water environment around 300–400 m depth. This estimation is in correspondence with the geological background (flexoturbiditic origin of the sediments, see Pavia & Robba 1979). On the basis of the molluscan assemblages, Sturani (1978) also suggested bathyal environment (200–500 meter) for pre-evaporitic sediments. Similar depth estimation was acquired by evaluation of otoliths (Girone et al. 2010).
• Poorly lithified based on sampling (sieving and ultrasonic cleaning) and fossil preservation. Serpentinite sand.

Size classes: macrofossils, mesofossils

Collected by A. Janssen in 1988, 1992

Collection methods: sieve

• Repository: Naturalis Natural History Museum, Leiden

Primary reference: A. Dulai. 2010. Early Messinian (Late Miocene) micromorphic brachiopods from Borelli (Italy, Piemonte). Fragmenta Palaeontologica Hungarica 28:21-31 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186801: authorized by Matthew Clapham, entered by Matthew Clapham on 03.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Thecideida - Thecideidae
 Terebratulida - Kraussinidae
Megerlia truncata Linnaeus 1767
 Terebratulida - Megathyrididae
Joania aff. falunica de Morgan 1915
Megathiris detruncata Gmelin 1791
 Terebratulida - Chlidonophoridae
Eucalathis giulioi Dulai 2019
 Rhynchonellida - Cryptoporidae
Cryptopora lovisati Dreger 1911