Zobrazeno 1 - 10
of 69
pro vyhledávání: '"Valentin Fischer"'
Autor:
Narimane Chatar, Romain Boman, Valentin Fallon Gaudichon, Jamie A. MacLaren, Valentin Fischer
Publikováno v:
Methods in Ecology and Evolution, Vol 14, Iss 3, Pp 848-859 (2023)
Abstract Finite element analysis (FEA) is a computational method used to predict the behaviour (stresses, strains and deformation) of a structure under predefined loading conditions. It can be applied to different biological structures, such as bone,
Externí odkaz:
https://doaj.org/article/df89f8c0839646128754392cdeb23dc6
Publikováno v:
PeerJ, Vol 11, p e15776 (2023)
The initial radiation of Eosauropterygia during the Triassic biotic recovery represents a key event in the dominance of reptiles secondarily adapted to marine environments. Recent studies on Mesozoic marine reptile disparity highlighted that eosaurop
Externí odkaz:
https://doaj.org/article/99e0eb46231c42498edf1bbfeed7c4f9
Autor:
Isaure Scavezzoni, Valentin Fischer
Publikováno v:
PeerJ, Vol 9, p e11222 (2021)
Dyrosauridae is a clade of neosuchian crocodyliforms that diversified in terrestrial and aquatic environments across the Cretaceous-Paleogene transition. The postcranial anatomy of dyrosaurids has long been overlooked, obscuring both their disparity
Externí odkaz:
https://doaj.org/article/8a5ad5b0116e428a8f208d658556a5e9
Publikováno v:
PeerJ, Vol 9, p e10647 (2021)
Even though a handful of long-lived reptilian clades dominated Mesozoic marine ecosystems, several biotic turnovers drastically changed the taxonomic composition of these communities. A seemingly slow paced, within-geological period turnover took pla
Externí odkaz:
https://doaj.org/article/aedb02db54e94f5cad03c4da798fb5b4
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-11 (2016)
The extinction of the ichthyosaurs had previously been attributed to increasing competition or to the loss of their main prey. Here, Fischer et al.analyse phylogenetic and ecological patterns of ichthyosaur diversification and extinction, and find th
Externí odkaz:
https://doaj.org/article/4cf2f257237c4c6d91f76d43c30150db
Autor:
Jeremy E. Martin, Peggy Vincent, Guillaume Suan, Tom Sharpe, Peter Hodges, Matt Williams, Cindy Howells, Valentin Fischer
Publikováno v:
Acta Palaeontologica Polonica, Vol 60, Iss 4, Pp 837-842 (2015)
Ichthyosaurs rapidly diversified and colonised a wide range of ecological niches during the Early and Middle Triassic period, but experienced a major decline in diversity near the end of the Triassic. Timing and causes of this demise and the subsequ
Externí odkaz:
https://doaj.org/article/eabcfac869b743b0b78da599713beb86
Autor:
Isaure Scavezzoni, Valentin Fischer
Publikováno v:
PeerJ, Vol 6, p e4594 (2018)
Modern marine turtles (chelonioids) are the remnants of an ancient radiation that roots in the Cretaceous. The oldest members of that radiation are first recorded from the Early Cretaceous and a series of species are known from the Albian-Cenomanian
Externí odkaz:
https://doaj.org/article/06c9ffe0f60b46f48aa0c6257d04174b
Autor:
Valentin Fischer
Publikováno v:
PeerJ, Vol 4, p e2604 (2016)
A complex and confusing taxonomy has concealed the diversity dynamics of Cretaceous ichthyosaurs (Reptilia) for decades. The near totality of Albian-Cenomanian remains from Eurasia has been assigned, by default, to the loosely defined entity Platypte
Externí odkaz:
https://doaj.org/article/2a65441288444222be762776dbf49e06
Autor:
Valentin Fischer, Maxim S. Arkhangelsky, Ilya M. Stenshin, Gleb N. Uspensky, Nikolay G. Zverkov, Roger B. J. Benson
Publikováno v:
Royal Society Open Science, Vol 2, Iss 12 (2015)
During the Middle and Late Jurassic, pliosaurid plesiosaurs evolved gigantic body size and a series of craniodental adaptations that have been linked to the occupation of an apex predator niche. Cretaceous pliosaurids (i.e. Brachaucheninae) depart fr
Externí odkaz:
https://doaj.org/article/246bc99b69aa4a2095ebe8192395cb7f
Publikováno v:
PLoS ONE, Vol 9, Iss 4, p e95637 (2014)
BackgroundIchthyosaurs are Mesozoic reptiles considered as active swimmers highly adapted to a fully open-marine life. They display a wide range of morphologies illustrating diverse ecological grades. Data concerning their bone microanatomical and hi
Externí odkaz:
https://doaj.org/article/82985d557e1644928112fe62815e65dc