Röper lens, Ivö Klack (Cretaceous of Sweden)

Where: Skane, Sweden (56.1° N, 14.4° E: paleocoordinates 46.6° N, 14.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Belemnellocamax mammillatus other zone, Early/Lower Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; poorly lithified, shelly/skeletal packstone

• Rocky shoreline, where boulders of Proterozoic gneiss were encrusted by zoned epifauna, then buried by bioclastic shell sands composed of the calcite skeletal elements of organisms, some of which lived on the boulders, and others in the surrounding carbonate sands and gravels. The locality probably represents a maximum water depth of 30 m.
• Bioclastic shell sands

Size class: macrofossils

Reposited in the BMNH

Collection methods: bulk, sieve,

• Approximately 500 kg of soft sediment (hard pieces were discarded) were collected, washed and separated into fractions. All of the >3 mm fraction was picked, and approximately 1.5 kg of the 0.5-3 mm material. In addition, a small portion of the 0.2-0.5 mm residue was picked.

Primary reference: A. S. Gale and A. M. Sørensen. 2015. Origin of the balanomorph barnacles (Crustacea, Cirripedia, Thoracica): new evidence from the Late Cretaceous (Campanian) of Sweden. Journal of Systematic Palaeontology 13:791-824 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 210592: authorized by Matthew Clapham, entered by Matthew Clapham on 05.06.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Thecostraca
 Thoracica -
Scalpelliformes "indet. carina type A" Buckeridge and Newman 2006 barnacle
Scalpelliformes "indet. carina type B" Buckeridge and Newman 2006 barnacle
Scalpelliformes "indet. tergum type A" Buckeridge and Newman 2006 barnacle
Scalpelliformes "indet. scutum type A" Buckeridge and Newman 2006 barnacle
Scalpelliformes "indet. scutum type B" Buckeridge and Newman 2006 barnacle
 Balanomorpha - Pachydiadematidae
Pachydiadema cretacea Withers 1935 barnacle
 Balanomorpha - Brachylepadidae
Parabrachylepas ifoensis Withers 1935 barnacle
Brachylepas naissanti Hebert 1855 barnacle
Brachylepas guascoi Bosquet 1857 barnacle
Epibrachylepas newmani n. gen. n. sp. Gale 2014 barnacle
 Scalpellomorpha - Proverrucidae
Proverruca dentifer Gale 2014 barnacle
 Scalpellomorpha - Scalpellidae
? Virgiscalpellum sp., "Arcoscalpellum cf. maximum" = Regioscalpellum maximum, Arcoscalpellum sp., "Arcoscalpellum scaniensis n. sp." = Diotascalpellum scaniensis
"Arcoscalpellum cf. maximum" = Regioscalpellum maximum Sowerby 1829 barnacle
Arcoscalpellum sp. Hoek 1907 barnacle
"Arcoscalpellum scaniensis n. sp." = Diotascalpellum scaniensis Gale 2015 barnacle
 Scalpellomorpha - Poecilasmatidae
? Poecilasma sp. Darwin 1851 barnacle
 Calanticomorpha - Calanticidae
 Calanticomorpha - Titanolepadidae
? Titanolepadidae indet. Gale 2015 barnacle
Titanolepas spinifer n. sp. Gale 2015 barnacle
Ivoelepas nielseni n. sp. Gale 2015 barnacle
Levelepas roeperi n. sp. Gale 2015 barnacle
 Archaeolepadomorpha - Myolepadidae
Bosquetlepas valida Steenstrup 1839 barnacle
Myolepas scanica Withers 1935 barnacle
 Pollicipomorpha - Pollicipedidae
Capitulum caelatum Withers 1935 barnacle
Pollicipes vansyoci n. sp. Gale 2015 barnacle
? Pollicipes striatum n. sp. Gale 2015 barnacle
 Pollicipomorpha - Zeugmatolepadidae
Zeugmatolepas sp. Withers 1913 barnacle