Results 91 to 100 of about 4,183,802 (162)

A nearly complete ornithocheirid pterosaur from the Aptian (Early Cretaceous) Crato Formation of NE Brazil [PDF]

open access: yes, 2012
A partial ornithocheirid, representing a rare example of a pterosaurian body fossil from the Nova Olinda Member of the Crato Formation, NE Brazil, is described from the collections of the State Museum of Natural History, Karlsruhe.
Frey, E., Elgin, R.A.
core  

Fig. 15 in The Species of Isoptera (Insecta) from the Early Cretaceous Crato Formation: A Revision

open access: yes, 2008
Fig. 15. Cratokalotermes santanensis. Scanning electronmicrographs of ROM 1764. A. Anterior portion of head (composite of several images). B. Detail of right cercus, showing the coarsely imbricate cuticular microsculpture of the distal segment.
Engel, Michael S.   +2 more
core   +1 more source

Imaging and spectroscopy techniques applied to characterise fossilisation processes and biomineralisation

open access: yesFrontiers in Ecology and Evolution
Palaeontology has long benefited from advancements in technology, allowing more refined morphological and compositional characterisation of fossils, relying on non-destructive and non-invasive techniques.
Gabriel Ladeira Oses   +9 more
doaj   +1 more source

Fig. 17. Cretorhinotermes novaolindense Bechly. A in The Species of Isoptera (Insecta) from the Early Cretaceous Crato Formation: A Revision

open access: yes, 2008
Fig. 17. Cretorhinotermes novaolindense Bechly. A. Photomicrograph of holotype, SMNS 66196. B. Venation of preserved section of forewing of holotype. C.
Engel, Michael S.   +2 more
core   +1 more source

Fig. 4. Mariconitermes talicei. A in The Species of Isoptera (Insecta) from the Early Cretaceous Crato Formation: A Revision

open access: yes, 2008
Fig. 4. Mariconitermes talicei. A. Reconstruction of habitus based on a series of specimens (hind wings not shown). B. Base of forewing of AMNHSaI-4. C–D: Details of tarsi. C. AMNHSaI-5. D.
Engel, Michael S.   +2 more
core   +1 more source

The species of Isoptera (Insecta) from the early Cretaceous Crato Formation : a revision

open access: yes, 2008
Fig. 20. Scanning electronmicrographs of the details of digestive tract preserved in Meiatermes araripena. A, B: Midgut (ROM 1770, AMNHSaI-30, respectively). C–F: ROM 1762. C, Midgut. D, Proventriculus. E, Detail of midgut shown in fig. C.
Engel, Michael S.   +2 more
core   +1 more source

A New Fossil Stick Grasshopper (Proscopioidea: Proscopiidae) from the Crato Formation of Brazil [PDF]

open access: yes, 2019
A new specimen of a stick grasshopper (Orthoptera: Proscopioidea: Proscopiidae) is described from the Early Cretaceous (Late Aptian – Early Albian) Crato Formation of southern Ceará, northeastern Brazil.
Oliveira, Francisco Irineudo Bezerra de   +2 more
core  

Isoptera from the Crato Formation [PDF]

open access: yes, 2008
30 p. : ill. ; 26 cm.Includes bibliographical references (p. 29-30).The termite species from Brazil's early Cretaceous (Aptian-aged) Crato (Santana) Formation are evaluated on the basis of the degree of character variation seen in modern species ...
Engel, Michael S.   +2 more
core   +1 more source

Crocodilians of the Crato Formation: evidence for enigmatic species

open access: yes, 2007
Crocodilians are extremely rare in the Crato Formation, and most of the material that has been collected is fragmentary or badly preserved. Only two species are represented, both of which are enigmatic concerning both their preservation and anatomy. Only
Frey, E., Salisbury, S. W.
core   +1 more source

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