Also known as Araripemys barretoi type locality

Where: Ceará, Brazil (7.2° S, 39.7° W: paleocoordinates 8.6° S, 8.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Romualdo Formation (Santana Group), Late/Upper Aptian (122.5 - 113.0 Ma)

• The Romualdo Member of the Santana Formation lies between the Crato Member of the Santana Formation (below) and the Exu Formation, which overlies the Santana Formation. Both of the latter horizons are most likely Albian in age. This suggests an Albian age (early Cretaceous, ± 110 mya) for the Romualdo Member of the Santana Formation and for Araripemys (Maisey, 1990, 1991).

•From Melo et al. 2020: In summary, this integrated study of foraminifera, ostracodes and other microfossil data from the Romualdo Formation indicates that the local Alagoas Stage (Ostracoda Zone RT-011) can now be constrained to the Aptian. Arai and Assine 2020 also support that the Romualdo Formation is entirely Aptian in age.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collection methods: Divisao de Geologia e Mineralogia, Departamento Nacional de Producao Mineral, Rio de Janeiro, DGM-DNPM collection

Primary reference: P. A. Meylan. 1996. Skeletal morphology and relationships of the Early Cretaceous side-necked turtle, Araripemys barretoi (Testudines: Pelomedusoides: Araripemydidae), from the Santana Formation of Brazil. Journal of Vertebrate Paleontology 16(1):20-33 [R. Benson/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128565: authorized by Roger Benson, entered by Roger Benson on 11.06.2012

Creative Commons license: CC BY (attribution)