Results 31 to 40 of about 104,637 (208)

Practical guidelines for Bayesian phylogenetic inference using Markov Chain Monte Carlo (MCMC) [version 1; peer review: 2 approved, 1 approved with reservations]

open access: yesOpen Research Europe, 2023
Phylogenetic estimation is, and has always been, a complex endeavor. Estimating a phylogenetic tree involves evaluating many possible solutions and possible evolutionary histories that could explain a set of observed data, typically by using a model of ...
Orlando Schwery   +4 more
doaj   +1 more source

From Gondwana to the Yellow Sea, evolutionary diversifications of true toads Bufo sp. in the Eastern Palearctic and a revisit of species boundaries for Asian lineages

open access: yeseLife, 2022
Taxa with vast distribution ranges often display unresolved phylogeographic structures and unclear taxonomic boundaries resulting in hidden diversity.
Siti N Othman   +15 more
doaj   +1 more source

The Effect of Fossil Sampling on the Estimation of Divergence Times with the Fossilized Birth–Death Process [PDF]

open access: yesSystematic Biology, 2019
AbstractTimescales are of fundamental importance to evolutionary biology as they facilitate hypothesis tests of historical evolutionary processes. Through the incorporation of fossil occurrence data, the fossilized birth–death (FBD) process provides a framework for estimating divergence times using more paleontological data than traditional node ...
O'Reilly, Joseph, Donoghue, Philip
openaire   +4 more sources

Rates and Rocks: Strengths and Weaknesses of Molecular Dating Methods

open access: yesFrontiers in Genetics, 2020
I present here an in-depth, although non-exhaustive, review of two topics in molecular dating. Clock models, which describe the evolution of the rate of evolution, are considered first.
Stéphane Guindon
doaj   +1 more source

Phylogeny and divergence times of suckers (Cypriniformes: Catostomidae) inferred from Bayesian total-evidence analyses of molecules, morphology, and fossils [PDF]

open access: yesPeerJ, 2018
Catostomidae (“suckers”) is a diverse (76 species) and broadly distributed family of Holarctic freshwater fishes with a rich fossil record and a considerable number (∼35%) of threatened and imperiled species.
Justin C. Bagley   +2 more
doaj   +2 more sources

So Volcanoes Created the Dinosaurs? A Quantitative Characterization of the Early Evolution of Terrestrial Pan-Aves

open access: yesFrontiers in Earth Science, 2022
The early Mesozoic is marked by several global-scale environmental events, including the emplacement of large igneous provinces, such as the Siberian Traps, Wrangellia, and Central Atlantic Magmatic Province (CAMP).
Max Cardoso Langer   +3 more
doaj   +1 more source

Ignoring Fossil Age Uncertainty Leads to Inaccurate Topology and Divergence Time Estimates in Time Calibrated Tree Inference

open access: yesFrontiers in Ecology and Evolution, 2020
Time calibrated trees are challenging to estimate for many extinct groups of species due to the incompleteness of the rock and fossil records. Additionally, the precise age of a sample is typically not known as it may have occurred at any time during the
Joëlle Barido-Sottani   +10 more
doaj   +1 more source

A revision of the diagnosis and affinities of the metriorhynchoids (Crocodylomorpha, Thalattosuchia) from the Rosso Ammonitico Veronese Formation (Jurassic of Italy) using specimen-level analyses [PDF]

open access: yesPeerJ, 2019
Neptunidraco ammoniticus is a thalattosuchian crocodylomorph from the Rosso Ammonitico Veronese Formation (RAVF, Middle Jurassic) of northern Italy. Erected from one partial specimen, Neptunidraco is pivotal in reconstructing thalattosuchian evolution ...
Andrea Cau
doaj   +2 more sources

Fossils matter: improved estimates of divergence times in Pinus reveal older diversification

open access: yesBMC Evolutionary Biology, 2017
Background The taxonomy of pines (genus Pinus) is widely accepted and a robust gene tree based on entire plastome sequences exists. However, there is a large discrepancy in estimated divergence times of major pine clades among existing studies, mainly ...
Bianca Saladin   +6 more
doaj   +1 more source

Early cephalopod evolution clarified through Bayesian phylogenetic inference

open access: yesBMC Biology, 2022
Background Despite the excellent fossil record of cephalopods, their early evolution is poorly understood. Different, partly incompatible phylogenetic hypotheses have been proposed in the past, which reflected individual author’s opinions on the ...
Alexander Pohle   +8 more
doaj   +1 more source

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