Results 31 to 40 of about 37,880 (284)

The sail-backed reptile Ctenosauriscus from the latest Early Triassic of Germany and the timing and biogeography of the early archosaur radiation [PDF]

, 2011
Background Archosaurs (birds, crocodilians and their extinct relatives including dinosaurs) dominated Mesozoic continental ecosystems from the Late Triassic onwards, and still form a major component of modern ecosystems (>10,000 species). The earliest
Reich, Mike, Stephen L. Brusatte, Hornung, Jahn Jochen, Hornung Jahn J., Nesbitt, Sterling J., Rainer R Schoch, Richard J. Butler, Schoch Rainer R., Hornung, J.J., Rainer R. Schoch, Farke, Andrew Allen, Butler Richard J., Nesbitt, S.J., Brusatte, Stephen L., Butler, Richard J.; id_orcid, Butler, Richard J., Richard J Butler, Butler, R.J., Jahn J Hornung, Sterling J. Nesbitt, Schoch, Rainer R., Hornung, Jahn J., Brusatte, S.L.; id_orcid, Schoch, R.R., Nesbitt Sterling J., Reich Mike, Mike Reich, Brusatte Stephen L., Sterling J Nesbitt, Reich, M., Stephen L Brusatte, Jahn J. Hornung   +31 more
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Polish Palaeobotany: 750 Million Years of Plant History as Revealed in a Century of Studies. Mesozoic Terrestrial Palynology and Flora Reconstruction

Acta Societatis Botanicorum Poloniae, 2022
Palynological studies of the Mesozoic era in Poland began in the 1950s. These investigations developed in many directions, including stratigraphy, systematics of spores and pollen grains and their botanical affinities, as well as paleoecological and ...
Jadwiga Ziaja, Anna Fijałkowska-Mader
doaj   +1 more source

A new species of the equisetalean plant Equicalastrobus from the Middle Triassic of Argentina [PDF]

Acta Palaeontologica Polonica
We present a morphological-systematic study of new fossil specimens of equisetaleans (horsetails) from the Cortaderita Formation, Sorocayense Group, Middle Triassic, Cuyana Basin, southwest of the San Juan Province, Argentina.
JANO NEHUÉN PROCOPIO RODRÍGUEZ, JOSEFINA BODNAR, MARISOL BELTRÁN   +2 more
doaj   +1 more source

Microscale sedimentary characteristics and distinguishing methods for deep-water sandy debris flow and turbidity flow in continental lakes: a case study of seventh member of Yanchang Formation, Ordos Basin

Shiyou shiyan dizhi, 2021
Based on the results of thin section observation, grain size analysis, environmental scanning electron microscopy, whole rock mineral quantitative analysis and fluorescence element analysis, the microscale sedimentary characteristics of sedimentary sand ...
Zhiyong LI, Yunze XU, Jing DENG, Zhiming LI, Jianwu ZHANG, Yueyi LI   +5 more
doaj   +1 more source

Intercalibration of Boreal and Tethyan timescales: the magneto-biostratigraphy of the Middle Triassic and the latest Early Triassic from Spitsbergen, Arctic Norway [PDF]

, 2008
An integrated bio-magnetostratigraphic study of the latest Early Triassic to the upper parts of the Middle Triassic, at Milne Edwardsfjellet in central Spitsbergen, Svalbard, allows a detailed correlation of Boreal and Tethyan biostratigraphies.
Mork, Atle, Weitschat, Wolfgang, Orchard, Michael J., Vigran, Jorunn, Os Vigran, Jorunn, Mørk, Atle, Hounslow, Mark W., Hu, Mengyu, karloukovski, Vassil   +8 more
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A microworld in Triassic amber [PDF]

Nature, 2006
Amber provides an effective medium for conservation of soft-bodied microorganisms, but finds older than 135 million years are very rare and have not so far contained any microbial inclusions. Here we describe 220-million-year-old droplets of amber containing bacteria, fungi, algae and protozoans that are assignable to extant genera.
SCHMIDT AR, RAGAZZI, EUGENIO, COPPELLOTTI, OLIMPIA, ROGHI, GUIDO   +3 more
openaire   +4 more sources

Reassessment of the evidence for postcranial skeletal pneumaticity in Triassic archosaurs, and the early evolution of the avian respiratory system. [PDF]

, 2012
Uniquely among extant vertebrates, birds possess complex respiratory systems characterised by the combination of small, rigid lungs, extensive pulmonary air sacs that possess diverticula that invade (pneumatise) the postcranial skeleton, unidirectional ...
Barrett, Paul M., David J. Gower (175487), Butler, Richard J.; id_orcid, Gower, David J., Richard J. Butler (172299), Butler, Richard J., Richard J Butler, David J Gower, Paul M. Barrett (162813), Paul M Barrett   +9 more
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Continental weathering in the Early Triassic in Himalayan Tethys, central Nepal: Implications for abrupt environmental change on the northern margin of Gondwanaland [PDF]

, 2014
The geochemistry of Triassic mudstones in the Himalayan Tethys sequence, central Nepal, was studied with respect to changes in sedimentary facies, grain size, and source rocks. The Triassic sedimentary facies of mudstone and carbonates show deposition in
Suzuki, Shigeyuki, Shiga, Yuka, Adachi, Yoshiko, Regmi, Amar Deep, Gyawali, Babu Ram, Yoshida, Kohki, Kawamura, Toshio, Dhital, Megh Raj   +7 more
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Ages from the “Mogod Formation” of the Permian–Triassic igneous rocks in the Sayan–Baikal belt, northern Mongolia [PDF]

, 2022
Late Paleozoic–Early Mesozoic volcano-plutonic rock unit at the southern margin of the Sayan–Baikal belt, Mongolia is a significant factor in understanding the Paleozoic–Mesozoic arc system along the Siberian continental margin.
NURAMKHAAN, Manchuk, UMEDA, Kanta, TSUKADA, Kazuhiro, SODNOM, Khishigsuren, NADMID, Bayart   +4 more
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A Flying Fish Across the Tethys: Thoracopterus wushaensis Tintori et al., 2012, from the Pelsa/Vazzoler Fossil-Lagerstätte (Late Ladinian, Middle Triassic) in the Dolomites (Italy)

Diversity
For the first time, the same fish species is recorded from Triassic rocks at both ends of the Tethys, namely, Thoracopterus wushaensis Tintori et al., 2012.
Andrea Tintori
doaj   +1 more source