Results 21 to 30 of about 31,104 (276)

New early Eocene tapiromorph perissodactyls from the Ghazij Formation of Pakistan, with implications for mammalian biochronology in Asia [PDF]

, 2012
Early Eocene mammals from Indo-Pakistan have only recently come under study. Here we describe the first tapiromorph perissodactyls from the subcontinent. Gandheralophus minor n. gen. and n. sp. and G. robustus n. sp.
Bai B., Dehm R., Fischer K.H., Gingerich P. D., Gingerich P.D., Gingerich P.D., Gunnell G.F., Holbrook L.T., Khan A., Kumar K., Lucas S.G., Lucas S.G., Lucas S.G., Maas M.C, Matthew W.D., Meng J., Missiaen P., Missiaen P., Philip D. Gingerich, Pieter Missiaen, Pilgrim G.E., Radinsky L.B., Radinsky L.B., Radinsky L.B., Ranga Rao A., Ranga Rao A., Rose K.D., Russell D.E., Sahni A., Sahni A., Sahni A., Thewissen J.G.M., Ting S., Ting S., Tong Y., Tsubamoto T., Wang Y., West R.M.   +37 more
core   +2 more sources

INEVITABLE HUMANS: SIMON CONWAY MORRIS'S EVOLUTIONARY PALEONTOLOGY [PDF]

Zygon: Journal of Religion and Science, 2005
Abstract. Simon Conway Morris, noted Cambridge University paleontologist, argues that in evolutionary natural history humans (or beings rather like humans) are an inevitable outcome of the developing speciating processes over millennia; humans are “inherent” in the system.
Rolston, Holmes, 1932-, author, Joint Publication Board of Zygon, publisher   +1 more
openaire   +2 more sources

An Early Cretaceous enantiornithine (Aves) preserving an unlaid egg and probable medullary bone

Nature Communications, 2019
The fossil record of the reproductive traits of early birds is limited. Here, Bailleul and colleagues describe the Cretaceous enantiornithine bird Avimaia schweitzerae, which preserves an unlaid egg in the abdominal cavity and putative medullary bone.
Alida M. Bailleul, Jingmai O’Connor, Shukang Zhang, Zhiheng Li, Qiang Wang, Matthew C. Lamanna, Xufeng Zhu, Zhonghe Zhou   +7 more
doaj   +1 more source

Intra-gastric phytoliths provide evidence for folivory in basal avialans of the Early Cretaceous Jehol Biota

Nature Communications, 2023
Angiosperms became the dominant plant group in early to middle Cretaceous terrestrial ecosystems, coincident with the timing of the earliest pulse of bird diversification.
Yan Wu, Yong Ge, Han Hu, Thomas A. Stidham, Zhiheng Li, Alida M. Bailleul, Zhonghe Zhou   +6 more
doaj   +1 more source

Gigantism in unique biogenic magnetite at the Paleocene-Eocene Thermal Maximum [PDF]

, 2008
We report the discovery of exceptionally large biogenic magnetite crystals in clay-rich sediments spanning the Paleocene-Eocene Thermal Maximum (PETM) in a borehole at Ancora, New Jersey. Aside from previously-described abundant bacterial magnetofossils,
Guerquin-Kern, Jean-Luc, Hesse, Reinhard, Kirschvink, Joseph L., Kopp, Robert E., Lücken, Uwe, Raub, Timothy D., Rouiller, Isabelle, Schumann, Dirk, Sears, S. Kelly, Smirnov, Aleksey V., Tikoo, Sonia M., Vali, Hojatollah, Wu, Ting-Di   +12 more
core   +2 more sources

Oldest ctenodactyloid tarsals from the Eocene of China and evolution of locomotor adaptations in early rodents

BMC Evolutionary Biology, 2018
Background Tamquammys has been considered one of the basal ctenodactyloid rodents, which has been documented in the earliest to middle Eocene (~ 56.0–48.5 Ma) in China. It was the most abundant and widespread rodent genus in the Erlian Basin (Nei Mongol,
Łucja Fostowicz-Frelik, Qian Li, Xijun Ni   +2 more
doaj   +1 more source

New anatomical information of the wukongopterid Kunpengopterus sinensis Wang et al., 2010 based on a new specimen [PDF]

PeerJ, 2017
The Wukongopteridae compose a non-pterodactyloid clade of pterosaurs that are the most abundant flying reptiles in the deposits of the Middle-Late Jurassic Yanliao Biota.
Xin Cheng, Shunxing Jiang, Xiaolin Wang, Alexander W.A. Kellner   +3 more
doaj   +2 more sources

Caudal pneumaticity and pneumatic hiatuses in the sauropod dinosaurs Giraffatitan and Apatosaurus [PDF]

, 2013
Skeletal pneumaticity is found in the presacral vertebrae of most sauropod dinosaurs, but pneumaticity is much less common in the vertebrae of the tail.
Taylor, Michael P, Wedel, Mathew J.
core   +9 more sources

An Oligocene giant rhino provides insights into Paraceratherium evolution

Communications Biology, 2021
Deng et al. report a new species of giant rhino, Paraceratherium linxiaense, from specimens of the upper Oligocene Jiaozigou Formation in China with an age of 26.5 Ma. Morphological analysis of the completely preserved skull with articulated mandible and
Tao Deng, Xiaokang Lu, Shiqi Wang, Lawrence J. Flynn, Danhui Sun, Wen He, Shanqin Chen   +6 more
doaj   +1 more source

A new toothless pterosaur from the Early Cretaceous Jehol Biota with comments on the Chaoyangopteridae

Scientific Reports, 2023
The Chaoyangopteridae is a clade of azhdarchoid pterosaurs that stands out in China, particularly in the Jehol Biota, as a Cretaceous group of medium-sized and high-crested pterosaurs. Herein, we describe a new species, Meilifeilong youhao gen.
Xiaolin Wang, Alexander W. A. Kellner, Shunxing Jiang, He Chen, Fabiana R. Costa, Xin Cheng, Xinjun Zhang, Bruno C. Vila Nova, Diogenes de Almeida Campos, Juliana M. Sayão, Taissa Rodrigues, Renan A. M. Bantim, Antônio A. F. Saraiva, Zhonghe Zhou   +13 more
doaj   +1 more source