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At present, the amount of molecular data available for extinct sloth taxa is limited, and analytical results based on these data tend to conflict with phylogenetic inferences made on the basis of …

May 3, 2011 · In this paper, I examine techniques for estimating divergence times for phylogenies containing both extant and extinct taxa, inferred using molecular and morphological data.

Sep 17, 2021 · Recent work suggests that the inclusion of hypothetical ancestors of extant placental clades, estimated by ancestral state reconstructions of morphological characters, …

Phylogeny must be considered in comparative tests of hypotheses about extinction, but care must be taken to avoid overcorrecting for phylogenetic nonindependence among taxa. Species …

Apr 1, 2015 · In this brief communication we present a new method for placing cryptic, recently extinct, or hypothesized taxa into an ultrametric phylogeny of extant taxa using continuous …

Apr 4, 2015 · Extinction of any species or higher taxon invariably results in some loss of existing evolutionary history (EH), but a major concern about extinctions driven by anthropogenic …

Jul 26, 2021 · Time-calibrated phylogenies of extant species ("extant timetrees") are widely used to estimate historical speciation and extinction rates by fitting stochastic birth-death models. 1 …

Mar 22, 2016 · Specifically, we focus on the problem of discriminating between alternative high extinction scenarios using time trees with only extant taxa, and on the confounding effect …

Sep 17, 2021 · Recent work suggests that the inclusion of hypothetical ancestors of extant placental clades, estimated by ancestral state reconstructions of morphological characters, …

“Tree thinking,” or phylogenetic thinking is essential to decipher this relatedness between the diversity of organisms, both living and extinct. Tree thinking helps us unravel the branching …

Jul 20, 2006 · A cladistic analysis was performed including five Cretaceous and 31 extant taxa within Saxifragales using a combination of molecular sequence and morphological data in …

Here, I infer both the phylogeny and the time of origin for Lissamphibia and a number of stem tetrapods using Bayesian methods based on a data set containing morphological data for …

Extant members of the Taxaceae are evergreen shrubs or small trees with helically arranged leaves. Pollen-bearing cones have microsporophylls with three to nine pollen sacs. Members of this group differ from other conifers in bearing a single ovule (occasionally two) terminally on …

Lazarus taxa and other ghost lineages reflect the sporadic nature of the fossil record. An Elvis taxon is a look-alike that has supplanted an extinct taxon through convergent evolution.. A …

Feb 28, 2025 · It had wide ranging impacts on life: 75% of species, 35% of genera, and 19% of taxonomic families died out. This extinction seems to have mostly impacted marine life, …

Mar 7, 2025 · 2.1 Taxonomy and Phylogenetic Relationships of Heliconia. Species identifications, nomenclature, and phylogenetic relationships of all taxa within Heliconia follow Kress et al. . …

uncertain how reliable inferences based solely on extant taxa can be achieved. Using a novel species-level phylogeny of all known extant and extinct species of the mammalian order Carnivora and related extinct groups, we show that far more precise and accurate ancestral areas can be

6 days ago · This catastrophic event resulted in the extinction of approximately 80% of known species , a fact well-supported by marine fossil records . Consequently, marine ecosystems …

Jun 14, 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 …

Feb 16, 2025 · In our analysis, we included two placeholder taxa, labeled ‘A’ and ‘B,’ to stabilize the rooting of the phylogenetic tree and establish a consistent temporal framework alongside …

Jul 26, 2021 · Time-calibrated phylogenies of extant species (“extant timetrees”) are widely used to estimate historical speciation and extinction rates by fitting stochastic birth-death models. 1 …

Feb 27, 2025 · Early molecular phylogenetic studies of Mollusca sometimes completely conflicted with previous morphology-based hypotheses ().Phylogenomic studies using transcriptome …