Lomita Baya, Puelén (Paleocene of Argentina)

Also known as Reef 3203

Where: La Pampa, Argentina (37.1° S, 67.8° W: paleocoordinates 39.6° S, 56.1° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Roca Formation, Danian (66.0 - 61.6 Ma)

• Early Danian (P1b)

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified framestone

Size class: macrofossils

Preservation: trace

Collected by S. Casadio in 2001-2005

Collection methods: surface (in situ),

• Specimens are housed under the prefix CEGH-UNC at the centro de Investigaciones Paleobiológicas y centro de Investigaciones en ciencias de la Tierra (CICTERRA-CONICET-UNc).

Primary reference: R. C. Baron-Szabo, S. Casadio, and A. Parras. 2004. First shallow water scleractinian coral reef from the Danian, northern Patagonia, Argentina. Ameghiniana 40:R 79 [R. Baron-Szabo/R. Baron-Szabo/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 52354: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 04.08.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Other members of the coral reef community are the branching coral Cladocora cf. C. gracilis (orbigny, 1850), the solitary coral Sideroseris durhami Wells, 1945, Venericardia iheringi (Böhm, 1903), the bivalves Acesta cf. A. latens (Feruglio, 1935), the echinoid Micropsis desori (cotteau and Leymerie, 1856; which was an inhabitant of hard substrates), as well as several species of warm water gastropods. Macroboring organisms, which include sponges, bivalves and polychaetes, are ubiquitous within the coral reef framework.
Rhodophyceae
  - Solenoporaceae
Parachaetetes asvapatii Pia 1936
Ten complete and fragmentary specimens CEGH- UNC 26285-26294
Anthozoa
 Scleractinia - Siderastreidae
Siderastrea adkinsi Wells 1934 stony coral
Sideroseris durhami Wells 1945 stony coral
 Scleractinia - Columastreidae
Haimesiastraea conferta Vaughan 1900 stony coral
listed as Haimesastraea conferta
 Scleractinia - Merulinidae
Cladocora cf. gracilis d'Orbigny 1850 stony coral
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Bivalvia
 Pectinida - Limidae
 Carditida - Carditidae
Echinoidea
 Calycina - Phymosomatidae
Micropsis desori Leymerie and Cotteau 1856 sea urchin