Results 21 to 30 of about 6,507 (153)
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 +2 more
doaj +1 more source
New anatomical information of the wukongopterid Kunpengopterus sinensis Wang et al., 2010 based on a new specimen [PDF]
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 +3 more
doaj +2 more sources
The first pterosaur basihyal, shedding light on the evolution and function of pterosaur hyoid apparatuses [PDF]
The pterosaur is the first known vertebrate clade to achieve powered flight. Its hyoid apparatus shows a simplification similar to that of birds, although samples of the apparatus are rare, limiting the ability to make an accurate determination.
Shunxing Jiang +3 more
doaj +2 more sources
Human and Ape Molecular Clocks and Constraints on Paleontological Hypotheses [PDF]
Although the relationships of the living hominoid primates (humans and apes) are well known, the relationships of the fossil species, times of divergence of both living and fossil species, and the biogeographic history of hominoids are not well established.
R L, Stauffer +4 more
openaire +2 more sources
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 +6 more
doaj +1 more source
An Oligocene giant rhino provides insights into Paraceratherium evolution
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 +6 more
doaj +1 more source
INEVITABLE HUMANS: SIMON CONWAY MORRIS'S EVOLUTIONARY PALEONTOLOGY [PDF]
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 +1 more
openaire +3 more sources
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 +13 more
doaj +1 more source
Bony-fish-like scales in a Silurian maxillate placoderm
Major groups of jawed vertebrates exhibit contrasting conditions of dermal plates and scales. But the transition between these conditions remains unclear due to rare information on taxa occupying key phylogenetic positions.
Xindong Cui +4 more
doaj +1 more source
Morphology of an Early Oligocene beaver Propalaeocastor irtyshensis and the status of the genus Propalaeocastor [PDF]
The Early to Late Oligocene Propalaeocastor is the earliest known beaver genus from Eurasia. Although many species of this genus have been described, these species are defined based on very fragmentary specimens.
Lüzhou Li +3 more
doaj +2 more sources

