Multiphase progenetic development shaped the brain of flying archosaurs. [PDF]
Sci Rep, 2019 The growing availability of virtual cranial endocasts of extinct and extant vertebrates has fueled the quest for endocranial characters that discriminate between phylogenetic groups and resolve their neural significances.
Beyrand V +7 more
europepmc +3 more sources
Potential for Powered Flight Neared by Most Close Avialan Relatives, but Few Crossed Its Thresholds [PDF]
, 2020 Uncertainties in the phylogeny of birds (Avialae) and their closest relatives have impeded deeper understanding of early theropod flight. To help address this, we produced an updated evolutionary hypothesis through an automated analysis of the Theropod ...
Brusatte, Stephen L. +9 more
core +4 more sources
Bayesian total evidence dating reveals the recent crown radiation of penguins [PDF]
, 2016 The total-evidence approach to divergence-time dating uses molecular and morphological data from extant and fossil species to infer phylogenetic relationships, species divergence times, and macroevolutionary parameters in a single coherent framework ...
Drummond, Alexei J. +5 more
core +5 more sources
From Highways to Biological Collections: Plastination of Wild Animals Victims of Roadkill in the Sooretama Biological Reserve, Brazil [PDF]
Brazilian Archives of Biology and TechnologyRoadkill is one of the most direct impacts on fauna, leading to numerous direct and indirect impacts. Road-killed animals could serve as a resource for research and teaching purposes, but first, they need to have their tissues preserved by some technique.
Marcos Vinícius Freitas Silva +8 more
doaj +1 more source
A second Cretaceous ornithuromorph bird from the Changma Basin, Gansu Province, Northwestern China [PDF]
, 2010 Finely-bedded lacustrine deposits of the Aptian (Lower Cretaceous) Xiagou Formation exposed in the Changma Basin of Gansu Province, northwestern China, have yielded numerous fossil vertebrate remains, including approximately 100 avian specimens.
Atterholt, J +5 more
core +2 more sources
New theropod dinosaur from the Upper Cretaceous of Patagonia sheds light on the paravian radiation in Gondwana [PDF]
, 2020 The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the problematic Rahonavis from Madagascar.
Agnolin, Federico +3 more
core +1 more source
eLifeEnantiornithines were the dominant birds of the Mesozoic, but understanding of their diet is still tenuous. We introduce new data on the enantiornithine family Bohaiornithidae, famous for their large size and powerfully built teeth and claws.
Case Vincent Miller +4 more
doaj +1 more source
PLoS ONE, 2011 BackgroundTroodontids are a predominantly small-bodied group of feathered theropod dinosaurs notable for their close evolutionary relationship with Avialae. Despite a diverse Asian representation with remarkable growth in recent years, the North American
Lindsay E Zanno +4 more
doaj +1 more source
A new sauropod titanosaur from the Plottier Formation (Upper Cretaceous) of Patagonia (Argentina) [PDF]
, 2011 This paper presents a new titanosaur sauropod, collected from levels of reddish clays assigned to the Plottier Formation (Coniacian-Santonian). The holotype of Petrobrasaurus puestohernandezi gen. et. sp. nov.
Canudo, J.I. +6 more
core +4 more sources
High rates of evolution preceded the origin of birds [PDF]
, 2014 The origin of birds (Aves) is one of the great evolutionary transitions. Fossils show that many unique morphological features of modern birds, such as feathers, reduction in body size, and the semilunate carpal, long preceded the origin of clade Aves ...
Allen +64 more
core +1 more source