New neuropteran insects (Osmylidae, Palaeoleontidae, Araripeneuridae and Psychopsidae) from the Santana Formation, Early Cretaceous NE Brazil

2010 ◽  
Vol 6 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Rafael G. Martins-Neto ◽  
Viviane Rodrigues
Keyword(s):  
Early Cretaceous ◽  
Santana Formation

scholarly journals New occurrences of fossilized feathers: systematics and taphonomy of the Santana Formation of the Araripe Basin (Cretaceous), NE, Brazil

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e1916 ◽  
Author(s):  
Gustavo M.E.M. Prado ◽  
Luiz Eduardo Anelli ◽  
Setembrino Petri ◽  
Guilherme Raffaeli Romero
Keyword(s):  
Sample Size ◽  
Early Cretaceous ◽  
Fossil Record ◽  
Small Sample Size ◽  
Small Sample ◽  
Exceptional Preservation ◽  
The World ◽  
Crato Member ◽  
Santana Formation ◽  
New Occurrences

Here we describe three fossil feathers from the Early Cretaceous Santana Formation of the Araripe Basin, Brazil. Feathers are the most complex multiform vertebrate integuments; they perform different functions, occurring in both avian and non-avian dinosaurs. Despite their rarity, fossil feathers have been found across the world. Most of the Brazilian feather fossil record comes from the Santana Formation. This formation is composed of two members: Crato (lake) and Romualdo (lagoon); both of which are predominantly reduced deposits, precluding bottom dwelling organisms, resulting in exceptional preservation of the fossils. Despite arid and hot conditions during the Cretaceous, life teemed in the adjacency of this paleolake. Feathered non-avian dinosaurs have not yet been described from the Crato Member, even though there are suggestions of their presence in nearby basins. Our description of the three feathers from the Crato laminated limestone reveals that, despite the small sample size, they can be referred to coelurosaurian theropods. Moreover, based on comparisons with extant feather morphotypes they can be identified as one contour feather and two downy feathers. Despite their rareness and low taxonomic potential, fossilized feathers can offer insights about the paleobiology of its owners and the paleoecology of the Araripe Basin.

The Orthoptera (Ensifera) from the Santana formation (Early Cretaceous, Northeast Brazil): A statistical and paleoecological approach, with description of new taxa

Zootaxa ◽  
2009 ◽  
Vol 2080 (1) ◽  
pp. 21-37 ◽  
Author(s):  
RAFAEL GIOIA MARTINS-NETO ◽  
LARA VAZ TASSI
Keyword(s):  
New Taxa ◽  
Early Cretaceous ◽  
Statistical Approach ◽  
Northeast Brazil ◽  
Crato Member ◽  
Santana Formation

This paper on the Araripe orthopterofauna reviews the Cearagryllus-like Grylloidea (Orthoptera: Ensifera) from the laminated limestone of the uppermost part of the Crato Member, lowest unit of the Santana Formation (Early Cretaceous), Araripe Basin, near Santana do Cariri and Nova Olinda municipalities (Ceará State, Northeast Brazil). The following new taxa are proposed: Notocearagryllus arturandradai n. sp., Cryptocearagryllus revelatus n. gen. et n. comb., Allocearagryllus leipnitzi n. gen et n. comb., Cearagrylloides perforatorius n. gen. et n. comb., Cearagrylloides microcephalus n. gen. et n. comb., Cearagrylloides previstus n. gen. et n. comb., and Paracearagryllus poliacanthus n. gen. et n. comb. (Cearagryllinae n. subfam.). Additionally new data on the paleoecology and paleoethology are furnished as well as a statistical approach.

A new side-necked turtle (Pleurodira, Pelomedusoides) from the Santana Formation (Early Cretaceous), Araripe Basin, Northeastern Brazil

Zootaxa ◽  
2007 ◽  
Vol 1425 (1) ◽  
pp. 53-61 ◽  
Author(s):  
GUSTAVO RIBEIRO DE OLIVEIRA ◽  
ALEXANDER WILHELM ARMIN KELLNER
Keyword(s):  
Early Cretaceous ◽  
New Genus ◽  
Neural Plate ◽  
The Other ◽  
Northeastern Brazil ◽  
New Taxon ◽  
New Genus And Species ◽  
Santana Formation

The fossil fauna of turtles from the Santana Formation, Araripe Basin, Early Cretaceous from Northeastern Brazil, includes, to exception of the Santanachelys gaffneyi (Cryptodira, Protostegidae), only pelurodiran taxa. A new genus and species, Caririemys violetae gen. et sp. nov. (Pleurodira, Pelomedusoides), from the Romualdo Member, upper section of the Santana Formation, is described here. Caririemys is based on one specimen consisting of a carapace, several vertebrae, a right femur and a right pelvis. Caririemys differs of the other pleurodirans from the Santana Formation by the following combination of characters: oval and moderately domed carapace; complete neural series reaching the suprapygal; and neural plate 8 shows an extensive contact with costal 7 and 8. This new taxon enhances the turtle diversity of the Santana Formation, which is presently the most diverse deposit of Mesozoic Testudines in the country.

Controlled excavations in the Romualdo Member of the Santana Formation (Early Cretaceous, Araripe Basin, northeastern Brazil): stratigraphic, palaeoenvironmental and palaeoecological implications

2005 ◽  
Vol 218 (1-2) ◽  
pp. 145-160 ◽  
Author(s):  
Emmanuel Fara ◽  
Antônio Á.F. Saraiva ◽  
Diógenes de Almeida Campos ◽  
João K.R. Moreira ◽  
Daniele de Carvalho Siebra ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Northeastern Brazil ◽  
Santana Formation

On the piscivorous behaviour of the Early Cretaceous amiiform neopterygian fish Calamopleurus cylindricus from the Santana Formation, northeast Brazil

2013 ◽  
Vol 92 (2-3) ◽  
pp. 119-122 ◽  
Author(s):  
E.W.A. Mulder
Keyword(s):  
Early Cretaceous ◽  
Stomach Content ◽  
Prey Preference ◽  
Northeast Brazil ◽  
Santana Formation ◽  
Prey Items

AbstractA specimen of the Early Cretaceous amiiform fish Calamopleurus cylindricus with stomach content is described from the Santana Formation, Brazil. The prey concerns a smaller conspecific individual. Until now, prey items documented for Calamopleurus almost exclusively involved the aspidorhynchid Vinctifer. On the basis of the present record it is suggested that the prey preference of Calamopleurus was less pronounced than previously assumed.

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