Results 1 to 10 of about 3,965 (108)

New Cretaceous (Aptian/Albian) boxer shrimp (Crustacea, Decapoda, Stenopodidea) from the Araripe Sedimentary Basin, NE, Brazil [PDF]

PLoS ONE, 2023
Stenopodidean shrimps are mostly cryptic in their habitats and are typically related with coral rubble or dead coral heads, rocks and crevices, and in association with other marine invertebrate such as sponges, crinoids and corals.
Damares Ribeiro Alencar, William Santana, Allysson Pontes Pinheiro, Daniel Lima, Antônio Álamo Feitosa Saraiva, Gustavo Ribeiro de Oliveira   +5 more
doaj   +3 more sources

An unusual pterosaur specimen (Pterodactyloidea, ?azhdarchoidea) from the early cretaceous Romualdo formation of Brazil, and the evolution of the pterodactyloid palate. [PDF]

PLoS ONE, 2012
A new and unusual specimen of a probable azhdarchoid pterosaur is described for the Early Cretaceous (Albian) Romualdo Formation of Brazil. The specimen consists of a palate that, although fragmentary, has a unique morphology differing from all other ...
Felipe L Pinheiro, Cesar L Schultz
doaj   +2 more sources

Aspectos Tafonômicos de Testudines da Formação Santana (Cretáceo Inferior),Bacia do Araripe, Nordeste do Brasil. [PDF]

Anuário do Instituto de Geociências, 2007
Araripe Basin is worldwide famous by diverse and exquisitely well preserved fossil assemblages in antana Formation. This lithostratigraphic unit is subdivided into three members: Crato, Ipubi and Romualdo.
Gustavo Ribeiro de Oliveira
doaj   +4 more sources

A regurgitalite reveals a new filter-feeding pterosaur from the Santana Group [PDF]

Scientific Reports
The Santana Group in Northeast Brazil has yielded a remarkable discovery: the first filter-feeding pterosaur from the tropics, named Bakiribu waridza gen. et sp. nov.
R. V. Pêgas, Tito Aureliano, Borja Holgado, William B. S. Almeida, Claude L. A. Santos, Aline M. Ghilardi   +5 more
doaj   +2 more sources

A forged ‘chimera’ including the second specimen of the protostegid sea turtle Santanachelys gaffneyi and shell parts of the pleurodire Araripemys from the Lower Cretaceous Santana Group of Brazil [PDF]

Swiss Journal of Palaeontology, 2023
Fossils of Cretaceous sea turtles adapted to an open marine lifestyle remain rare finds to date. Furthermore, the relationships between extant sea turtles, chelonioids, and other Mesozoic marine turtles are still contested, with one key species being ...
Torsten M. Scheyer, Gustavo R. Oliveira, Pedro S. R. Romano, Dylan Bastiaans, Lisa Falco, Gabriel S. Ferreira, Márton Rabi   +6 more
doaj   +2 more sources

Interpreting character variation in turtles: Araripemys barretoi (Pleurodira: Pelomedusoides) from the Araripe Basin, Early Cretaceous of Northeastern Brazil [PDF]

PeerJ, 2020
The Araripe Basin (Northeastern Brazil) has yielded a rich Cretaceous fossil fauna of both vertebrates and invertebrates found mainly in the Crato and Romualdo Formations, of Aptian and Albian ages respectively.
Saulo Limaverde, Rodrigo Vargas Pêgas, Rafael Damasceno, Chiara Villa, Gustavo R. Oliveira, Niels Bonde, Maria E.C. Leal   +6 more
doaj   +2 more sources

A new azhdarchoid pterosaur from the Lower Cretaceous of Brazil and the paleobiogeography of the Tapejaridae [PDF]

Acta Palaeontologica Polonica, 2021
The Tapejaridae were an apparently worldwide distributed clade of edentulous pterosaurs, being a major component of several Lower Cretaceous terrestrial faunas.
Gabriela M. Cerqueira, Mateus A.C. Santos, Maikon F. Marks, Juliana M. Sayão, Felipe L. Pinheiro   +4 more
doaj   +1 more source

Validation of Chronocancer camilosantanai† Santana, Tavares, Martins, Melo & Pinheiro (Crustacea, Decapoda, Brachyura) from the Romualdo Formation, Araripe Sedimentary Basin, Brazil [PDF]

Papéis Avulsos de Zoologia, 2023
Santana et al. (2022) described a new genus and species of fossil crab, Chronocancer camilosantanai, from carbonate concretions of the Romualdo Formation of the Araripe Sedimentary Basin. The journal in which the description appeared was published online
William Santana, Marcos Tavares, Carlos Antônio Muniz Martins, José Patrício Pereira Melo, Allysson P. Pinheiro   +4 more
doaj   +1 more source

The Families Veneridae, Trochidae, Akeridae and Acteonidae (Mollusca), in the Romualdo Formation: Paleoecological and Paleobiogeographic Aspects in the Lower Cretaceous of the Araripe Basin, NE of Brazil [PDF]

Anuário do Instituto de Geociências, 2019
Fossil mollusks in the Araripe Sedimentary Basin have been reported since the 1960s, with bivalves present in the Crato and Romualdo formations and gastropods restricted to the latter.
Priscilla Albuquerque Pereira, Rita de Cassia Tardin Cassab, Alcina Magnólia Franca Barreto   +2 more
doaj   +1 more source

Physicochemical investigation of shrimp fossils from the Romualdo and Ipubi formations (Araripe Basin) [PDF]

PeerJ, 2019
The Ipubi and Romualdo Formations are Cretaceous units of the Araripe Basin (Santana Group). The first and most ancient was deposited in a lake environment, and some fossils were preserved in shales deposited under blackish conditions.
Olga Alcântara Barros, João Hermínio Silva, Gilberto Dantas Saraiva, Bartolomeu Cruz Viana, Alexandre Rocha Paschoal, Paulo Tarso Cavalcante Freire, Naiara Cipriano Oliveira, Amauri Jardim Paula, Maria Somália Viana   +8 more
doaj   +2 more sources