Cava Boschetto di Chiampo, Cengio dell’Orbo quarry (Eocene of Italy)

Also known as Cengio dell’Orbo

Where: Vicenza, Italy (45.5° N, 11.3° E: paleocoordinates 39.2° N, 9.6° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chiampo Marble Formation, Lutetian (47.8 - 41.3 Ma)

• Fossiliferous ruditic tuffites and hyaloclastites (“Lophoranina tuff” Auct.), intercalated in nummulitic limestones of the upper Chiampo Marble

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal ramp; poorly lithified, shelly/skeletal, sandy, conglomeratic volcaniclastic sediments

• According to Beccaro et al. (2001) and Frisone et al. (2020) the site represents a distal oligophotic to aphotic part of a distally steepened carbonate ramp at a water depth below 200 m.
• a tuffite composed of rounded volcanic fragments, calcareous bioclasts and calcitic cement

Size class: macrofossils

Preservation: replaced with calcite

Collection methods: surface (in situ),

Primary reference: P. Martinez-Soares, M. Roux, L. Giusberti, R. Gatto, M. Eléaume and N. Améziane. 2024. New Eocene species of the crinoid genera Holopus and Cyathidium (Cyrtocrinida: Holopodidae) from north-eastern Italy. Zootaxa 5541(4):401-437more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 237244: authorized by Val Syverson, entered by Val Syverson on 02.12.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collection contains "a mixture of shallow and deep marine organisms such as larger foraminifera, decapod crustaceans, molluscs, sponges, echinoderms (crinoids and echinoids), bryozoans, rare corals, and calcareous algae" detailed elsewhere. This collection focuses on new species of Holopus
Show authors, comments, and common names
Crinoidea
 Isocrinida - Cainocrinidae
Cainocrinus sp.
Cainocrinus sp. Forbes 1852 Sea lily
 Comatulida - Bathycrinidae
Paraconocrinus sp.
Paraconocrinus sp. Roux and Philippe 2021 Feather star
 Cyrtocrinida - Holopodidae
Holopus fabianii, Cyathidium chiampoensis, Cyathidium sp.
Holopus fabianii Sea lily
type locality
Cyathidium chiampoensis Sea lily
type locality
Cyathidium sp. Steenstrup 1846 Sea lily