S2602, President Beaches, Byers Peninsula (Cretaceous of Antarctica)

Where: Antarctica (62.7° S, 61.1° W: paleocoordinates 50.9° S, 37.6° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: President Beaches Formation (Byers Group), Late/Upper Berriasian (145.0 - 140.2 Ma)

• Based on this ammonite assemblage, we assume late Berriasian age for this part of the President Beaches Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: submarine fan; lithified, green conglomerate

• This locality falls into the so-called association 4 (thick-bedded sandstones deposited by waning turbidity currents of low to moderate sediment concentration).
• Green, pebble-sized conglomerates in a small sand-body

Size class: macrofossils

Collection methods: Repository: Museum of Paleontology and Historical Geology (Sofia University "St. Kliment Ohridski")

Primary reference: D. Dochev, V. Idakieva, M. Ivanov, S. Velev, and K. Bonev. 2017. Ammonite fauna from the Byers Peninsula, Livingston Island, South Shetland Islands, Antarctica. Comptes Rendus de l’Académie Bulgare des Sciences 70:1557-1566 [M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 190850: authorized by Matthew Clapham, entered by Matthew Clapham on 19.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Olcostephanidae
Spiticeras bilobatum Uhlig 1903 ammonite
Spiticeras tripartitum Hupé 1854 ammonite
ssp. lovaldensis
Spiticeras (Spiticeras) spitiensis Blanford 1864 ammonite
 Ammonoidea -
Argentiniceras lonchochense Steuer 1897 ammonite