Arroyo Ekieps 550012 (Miocene to of Colombia)

Where: Colombia (12.1° N, 71.4° W: paleocoordinates 11.1° N, 67.8° W)

• coordinate stated in text

When: Siamaná Formation, Aquitanian to Aquitanian (23.0 - 16.0 Ma)

• presence Siderastrea siderea, Mimachlamys canalis and principally the large benthic foraminifera assemblages point to an early Miocene age

Environment/lithology: reef, buildup or bioherm; reef rocks

• mainly shallow-water marine carbonates deposited over the basement rocks of the Cocinas, Jarara, and Macuira paleoislands. Coral reefs grew fringing the paleoislands
• formation consists of conglomerates, sandstones, and fossiliferous limestones

Size classes: macrofossils, mesofossils

Primary reference: P. Flórez, E. di Martino, and L. V. Ramalho. 2021. Early Miocene coral reef-associated bryozoans from Colombia. Part I: Cyclostomata, “Anasca” and Cribrilinoidea Cheilostomata. Journal of Paleontology 95(4):694-719 [B. Seuss/B. Seuss]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 211329: authorized by Barbara Seuss, entered by Barbara Seuss on 14.07.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Licornia sp.
Erect articulated, substrate Acropora panamensis
Anthozoa
 Scleractinia - Mussidae
Colpophyllia willoughbiensis Vaughan 1919 stony coral
 Scleractinia - Acroporidae
Acropora panamensis Vaughan 1919 stony coral
Alveopora tampae Weisbord 1973 stony coral
 Scleractinia - Poritidae
Porites sp. Link 1807 stony coral
Porites baracoaensis Vaughan 1919 stony coral
Porites anguillensis Vaughan 1919 stony coral
Goniopora hilli Vaughan 1919 stony coral
Gymnolaemata
 Cheilostomata - Phidoloporidae
Rhynchozoon sp. Hincks 1895
Encrusting, substrate: Colpophyllia willoughbiensis; ?Laminar, substrate: Goniopora hilli, Goniopora hilli
 Cheilostomata - Margarettidae
Margaretta cf. buski
Erect articulated, substrate: Goniopora hilli
 Cheilostomata - Schizoporellidae
Gemelliporidra aff. magniporosa
Encrusting, substrate: Porites baracoaensis, Alveopora tampae
 Cheilostomata -
Ditaxiporina colombiana n. sp.
Erect articulated, substrate: Porites sp., Goniopora hilli, Alveopora tampae, Acropora panamensis
 Cheilostomata - Hippopodinidae
Hippopodina sp. Levinsen 1909
Encrusting, substrate: Porites anguillensis
 Cheilostomata - Poricellariidae
Poricellaria sp.
Erect articulated, substrate: Goniopora hilli
 Cheilostomata - Cribrilinidae
Figularia bragai n. sp.
Encrusting, substrate: Colpophyllia willoughbiensis
 Cheilostomata - Calloporidae
Copidozoum sp. Harmer 1926
Encrusting, substrate: Colpophyllia willoughbiensis
 Cheilostomata - Catenicellidae
Catenicella sp. de Blainville 1830
Erect articulated, substrate: Acropora panamensis
 Cheilostomata - Quadricellariidae
Nellia cf. tenella Lamarck 1816
Erect articulated, substrate: Goniopora hilli