Results 21 to 30 of about 689 (206)

Distributions of extinction times from fossil ages and tree topologies: the example of mid-Permian synapsid extinctions [PDF]

open access: yesPeerJ, 2021
Given a phylogenetic tree that includes only extinct, or a mix of extinct and extant taxa, where at least some fossil data are available, we present a method to compute the distribution of the extinction time of a given set of taxa under the Fossilized ...
Gilles Didier, Michel Laurin
doaj   +2 more sources

The fossil record of camelids demonstrates a late divergence between Bactrian camel and dromedary [PDF]

open access: yesActa Palaeontologica Polonica, 2020
A new compilation of the Old World fossil record of Camelidae and a recent phylogenetic analysis allow a new assessment of the timing of the clade’s diversification.
Denis Geraads   +4 more
doaj   +1 more source

Including fossils in phylogeny: a glimpse into the evolution of the superfamily Evanioidea (Hymenoptera: Apocrita) under tip-dating and the fossilized birth–death process [PDF]

open access: yesZoological Journal of the Linnean Society, 2021
Abstract Using a fossilized birth–death model, a new phylogeny of the superfamily Evanioidea (including ensign wasps, nightshade wasps and hatchet wasps) is proposed, with estimates of divergence times for its constitutive families and for corroborating the monophyly of Evanioidea.
Jouault, Corentin   +6 more
openaire   +4 more sources

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   +3 more sources

Inferring ‘weak spots’ in phylogenetic trees: application to mosasauroid nomenclature [PDF]

open access: yesPeerJ, 2017
Mosasauroid squamates represented the apex predators within the Late Cretaceous marine and occasionally also freshwater ecosystems. Proper understanding of the origin of their ecological adaptations or paleobiogeographic dispersals requires adequate ...
Daniel Madzia, Andrea Cau
doaj   +2 more sources

First phylogenetic analysis of Dryophthorinae (Coleoptera, Curculionidae) based on structural alignment of ribosomal DNA reveals Cenozoic diversification

open access: yesEcology and Evolution, 2021
Dryophthorinae is an economically important, ecologically distinct, and ubiquitous monophyletic group of pantropical weevils with more than 1,200 species in 153 genera.
Maria Lourdes Chamorro   +2 more
doaj   +1 more source

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

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

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