Results 1 to 10 of about 231,770 (260)

The Cretaceous Flora of America [PDF]

open access: greenNature, 1877
NEAR the close of his very interesting lecture “On the Tropical Forests of Hampshire,” published in NATURE (vol. xv. pp. 229, 258, 279) Mr. J. S. Gardner says:—“I have great doubts, however, as to the correct position of many of the foreign so-called cretaceous beds.
J. S. Gardner
openalex   +4 more sources

A unique dentary suggests a third genus of batrachosauroidid salamander existed during the latest Cretaceous in the western USA [PDF]

open access: yesActa Palaeontologica Polonica, 2022
An incomplete salamander dentary (AMNH FARB 22965) described herein from the upper Maastrichtian Lance Formation, Wyoming, USA, exhibits a puzzling suite of features.
JAMES D. GARDNER
doaj   +1 more source

First spalacotheriid and dryolestid mammals from the Cretaceous of Germany [PDF]

open access: yesActa Palaeontologica Polonica, 2022
The new spalacotheriid “symmetrodontan” Cifellitherium suderlandicum gen. et sp. nov. from the Barremian–Aptian of the Balve locality in northwestern Germany is the first record of spalacotheriids in Central Europe.
THOMAS MARTIN   +4 more
doaj   +1 more source

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

open access: yesActa 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   +4 more
doaj   +1 more source

A large hadrosaurid dinosaur from Presa San Antonio, Cerro del Pueblo Formation, Coahuila, Mexico [PDF]

open access: yesActa Palaeontologica Polonica, 2021
New hadrosaurid postcranial material is reported, collected near Presa San Antonio, Parras de la Fuente municipality, Coahuila, Mexico, in a sedimentary sequence belonging to the upper Campanian of the Cerro del Pueblo Formation, in the Parras Basin. The
Rogelio Antonio Reyna-Hernández   +3 more
doaj   +1 more source

Dietary palaeoecology of an Early Cretaceous armoured dinosaur (Ornithischia; Nodosauridae) based on floral analysis of stomach contents [PDF]

open access: yesRoyal Society Open Science, 2020
The exceptionally well-preserved holotype of the armoured dinosaur Borealopelta markmitchelli (Ornithischia; Nodosauridae) from the Early Cretaceous (Clearwater Formation) of northern Alberta preserves a distinct mass within the abdominal cavity ...
Caleb M. Brown   +6 more
doaj   +1 more source

A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the ‘Styracosaurus-line' dinosaurs [PDF]

open access: yesRoyal Society Open Science, 2020
Ceratopsids are among the most ubiquitous dinosaur taxa from the Late Cretaceous terrestrial formations of the Western Interior of North America, comprising two subfamilies, Chasmosaurinae and Centrosaurinae.
John P. Wilson   +2 more
doaj   +1 more source

The oldest birotule-bearing freshwater sponges from the Upper Cretaceous–lower Paleocene Deccan volcanic-associated sediments of India [PDF]

open access: yesActa Palaeontologica Polonica, 2023
A new fossil occurrence of freshwater sponges (Porifera: Demospongiae) is reported from the Deccan volcanic associated Naskal intertrappean locality, deposited in an interval of
BANDANA SAMANT   +8 more
doaj   +1 more source

LEROYI: A NEW TETHYAN LAGENID BENTHIC FORAMINIFERAL GENUS [PDF]

open access: yesEarth Sciences Pakistan, 2020
Leroyi n. gen., is introduced to include the Cretaceous-Neogene (predominantly Maastrichtian-Eocene) benthic Lagenid foraminiferids from many Tethyan localities that characterized by its slightly coiled early portion of the smooth test, later slightly ...
Haidar Salim Anan
doaj   +1 more source

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