Results 11 to 20 of about 64,690 (275)

The unexpected survival of an ancient lineage of anseriform birds into the Neogene of Australia: the youngest record of Presbyornithidae [PDF]

open access: yesRoyal Society Open Science, 2016
Presbyornithids were the dominant birds in Palaeogene lacustrine assemblages, especially in the Northern Hemisphere, but are thought to have disappeared worldwide by the mid-Eocene.
Vanesa L. De Pietri   +4 more
doaj   +1 more source

Wildfires in the Campanian of James Ross Island: a new macro-charcoal record for the Antarctic Peninsula

open access: yesPolar Research, 2021
The Cretaceous “high-fire” period was a global event that reached almost all continental masses during that period in Earth’s history. The extensive wildfires directly affected plant communities.
Flaviana Jorge de Lima   +10 more
doaj   +1 more source

Lower–Middle Ordovician brachiopods from the Eastern Cordillera of Peru: biostratigraphical and palaeobiogeographical significance [PDF]

open access: yesEstonian Journal of Earth Sciences, 2023
Lower–Middle Ordovician brachiopods are well known from the Central Andean Basin of Argentina and Bolivia, but relatively little data comes from its northern prolongation in the Altiplano and the Eastern Cordillera of Peru.
Jorge Colmenar   +2 more
doaj   +1 more source

New Cretaceous lungish material from southern South America, Argentina [PDF]

open access: yesResearch & Knowledge, 2017
Dipnoi is a large group of sarcopterygians which ranges from the Early Devonian to the present. Traditionally, it was considered that their taxonomic diversity decreased at the end of Paleozoic.
P. Guillermina Giordano   +2 more
doaj   +1 more source

Fragmentation of South China from greater India during the Rodinia-Gondwana transition

open access: yesGeology, 2020
Late Tonian to Cambrian sedimentary sequences in northwestern India and South China provide vital evidence for modeling their paleogeographic linkage, including their juxtaposition and subsequent separation during the transition from the Rodinia to the
Wei Wang   +7 more
semanticscholar   +1 more source

Paleomagnetic insights into the Cambrian biogeographic conundrum: Did the North China craton link Laurentia and East Gondwana?

open access: yesGeology, 2020
Redlichiid trilobite and small shelly fossils indicate strong ties of the North China craton (NCC) to Gondwana during the early Cambrian, while recent discoveries of the characteristic fossils of Laurentia in Wuliuan shales in the eastern NCC imply its
Hanqing Zhao, Shihong Zhang, E. al.
semanticscholar   +1 more source

The first iguanian lizard from the Mesozoic of Africa [PDF]

open access: yesRoyal Society Open Science, 2016
The fossil record shows that iguanian lizards were widely distributed during the Late Cretaceous. However, the biogeographic history and early evolution of one of its most diverse and peculiar clades (acrodontans) remain poorly known.
Sebastián Apesteguía   +3 more
doaj   +1 more source

Geochemical and Tectonic Setting of Trachyte rock withinAvromanCarbonite Formation, Zagros Suture Zone,Kurdistan Region/ Northeastern Iraq. [PDF]

open access: yesKirkuk Journal of Science, 2018
Trachyte extrusion rocks exposed as dyke cutting Avroman carbonate formation that is part of northwestern Zagros suture zone.Petrographical study combined with EMPA study reveals that these trachyte rock composed of essentially Plagioclase and ...
Sabah Ismail, Shleer Abdul-Qadir
doaj   +1 more source

Detrital-zircon geochronology and provenance of the Ocloyic synorogenic clastic wedge, and Ordovician accretion of the Argentine Precordillera terrane [PDF]

open access: yes, 2015
The Precordillera terrane in northwestern Argentina is interpreted to be anexotic (Laurentian) continental fragment that was accreted to western Gondwanaduring the Ordovician. One prominent manifestation of the subductionand collision process is a Middle?
Astini, Ricardo Alfredo   +3 more
core   +1 more source

Macroevolution and adaptive processes of the Leptocoeliidae family (Brachiopoda) throughout the Silurian and Devonian. e2321742

open access: yesTerr@ Plural, 2023
The Leptocoeliidae family (genera Anabaia, Australocoelia, Eocoelia, Leptocoelia, Leptocoelina and Pacificocoelia) has an important place in the global paleobiogeography, during the Silurian and Devonian.
Victor Rodrigues Ribeiro   +1 more
doaj   +1 more source

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