Playa Panamá, Carrillo Norte (Cretaceous of Costa Rica)

Where: Guanacaste, Costa Rica (10.6° N, 85.6° W: paleocoordinates 16.9° N, 77.9° W)

• coordinate estimated from map

When: El Viejo Formation, Campanian (83.6 - 72.1 Ma)

• corresponding to the basal part of El Viejo Formation

Environment/lithology: deltaic; siliciclastic sediments and carbonate

• ...interpreted as being deposited as a series of flood-related sediment gravity flows in the area of a fan delta below action of waves
• note the comments on rudist-occurrence in the taxonomic list

•

•sedimentary rocks are mainly basalt-derived conglomerates, sandstones, and gravelly sandstones with abundant bioclasts

Size class: macrofossils

• corals, red algae, nereneid gastropods

Primary reference: J.M. Pons, E. Vicens, and R. Schmidt-Effing. 2016. Campanian rudists (Hippuritida, Bivalvia) from Costa Rica (Central America). Journal of Paleontology 90(2):211-238 [B. Seuss/B. Seuss/B. Seuss]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 221364: authorized by Barbara Seuss, entered by Barbara Seuss on 29.07.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Plagioglyptus trechmanni, Alencasterites mooretownensis n. gen.
Plagioglyptus trechmanni
in one-specimen high close-cluster organic reef and in sandstones
Alencasterites mooretownensis n. gen.
occurs in monospecific close-cluster/frame organic reefs
Algae
 Algae -
Algae indet.
Algae indet.
red algae
Bivalvia
 Hippuritida - Plagioptychidae
Mitrocaprina costaricaensis n. sp.
Mitrocaprina costaricaensis n. sp. rudist
occurs in sandstones
 Hippuritida - Hippuritidae
Barrettia monilifera
 Hippuritida - Radiolitidae
Potosites ? tristantorresi, Chiapasella sp.
Potosites ? tristantorresi Pons et al. 2010 rudist
Potosites ? aff. tristantorresi; on thickets of other species
Chiapasella sp. Müllerried 1931 rudist
in rudstones forming bouquets
 Hippuritida - Antillocaprinidae
Antillocaprinidae indet., Antillocaprina aff. suboccidentalis
Antillocaprinidae indet. MacGillavry 1937 rudist
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
nereneid gastropods
Anthozoa
  -
Anthozoa indet.
Anthozoa indet. Ehrenberg 1834