... evolutionary rates. Under such a model, the amount of, molecular change along a particular lineage is essentially independent of its height, which, weakens the molecular clock hypothesis. Finally, our model explains the existence of ‘living, fossil’ sister groups to large clades that are species poor...

... In recent years, there has been a growing interest in using morphology to establish the placement of species on phylogenetic trees derived from molecular data. This is relevant in the case of recently extinct or fossil species, which are usually represented only by fragmentary morphology. In the latter case...

... plants. Even though a thorough review of their fossil record has recently enhanced our understanding of their evolutionary history, few fossils have been found to preserve fertile characters. Here, we describe a new fertile marchantioid fossil from the Late Triassic of Argentina and assess its...

.... Methods introduced over the past decade have paved the way for a renewed enthusiasm for exploring modes of speciation in the fossil record. However, the field does not yet have a strong intuition for how ancestor-descendant relationships, especially those that arise from budding speciation, might...

.... That is, if the status of a sample after sampling is unknown and likely changes with time, we are again unable to estimate the birth and death rates. Removing lineages immediately after sampling is a strong and unrealistic assumption ( Andréoletti and Morlon 2023 ) for many other processes, for example, fossilization...

... of the Limoniidae subfamily Limnophilinae, with a specific focus on the relict genus Chilelimnophila. The family Limoniidae is well documented in the fossil record, with many species considered relicts in the modern fauna. Our study is based on the discovery of the first fossil specimens...

... evolution might be associated with incomplete reproductive isolation across deep time in living fossil lineages. To check for regions where both extant gar genera are currently sympatric, we downloaded occurrence data for species of Lepisosteus and Atractosteus spatula from FishNet2 ( http...

... of the planet. Neontological distribution data are often sufficient to unravel a lineage’s biogeographic history, yet ancestral range inferences can be at odds with fossil evidence. Here, I use the fossilized birth–death process and the dispersal–extinction cladogenesis model to jointly infer the dated...

... and fossil data analyses show that Miridae occurred at least in the Jurassic. The divergence dates for Cyalpinae tribes are unknown. We performed the phylogenetic analysis of Cylapinae based on molecular and morphological data, in addition to a combined dataset. We calibrated the molecular trees with fossil...

... with synchrotron scanning. The fossils display a number of modifications in the antennae and foreleg correlated with the specialized host-detection mechanism, and in the ovipositor apparatus, as well as in the thorax and abdomen for accommodating the internalized ovipositor. The presence of these and other...

... was revised, and genetic and genomic resources were developed for many species, allowing comparative analyses at the molecular scale. Here, we review the literature on the resources for genetic manipulation and genome sequencing, the recent phylogeny reconstruction of this order, and its fossil record...

... phylogeny shows that the origin of living lampriforms coincides with the aftermath of the Cretaceous–Palaeogene extinction and that anatomically modern pelagic morphotypes evolved 10 Myr after the start of the Palaeogene. phylogenetics fossils Lampriformes diversification Cretaceous–Palaeogene For more...

[email protected] 2023 This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model ( https://dbpia.nl.go.kr/pages/standard-publication-reuse-rights ) Abstract The crustacean fossil record is dominated by mineralized forms. These fossils...

... Published by Oxford University Press on behalf of the Society of Systematic Biologists 2023. 2023 This work is written by (a) US Government employee(s) and is in the public domain in the US. Abstract Burmese amber is a significant source of fossils that documents the mid-Cretaceous biota. This deposit...

... discoveries of fossil taxa with transverse stomatal orientation. Technological developments in areas of plant research ranging from phylogenetics to finely tuned gene-expression studies enhance our understanding of the associations between genes, biochemistry and functional traits. This review examines...

... typical of these forests might have existed in the wider region of Southeast Asia since Eocene times and various fossil plant assemblages represented both lowland (Fagaceae, Dipterocarpaceae) and upland (Fagaceae, Pinaceae) tropical forests. These findings are in conflict with previous interpretations...

... important in the study of fossil and extant vascular plants, particularly seedless vascular plants given that the greatest variation occurs in them. For correspondence. E-mail [email protected] © The Author(s) 2022. Published by Oxford University Press on behalf of the Annals of Botany Company. All...

... fossil specimens of Microcavia have central values. †Dolicavia Quintana, 1997 , †Orthomyctera, the extant species of Microcavia, Dolichotis Desmarest, 1819 and Kerodon F.Cuvier, 1823 have positive values; †Eocardia Ameghino, 1887...

... species primarily distributed in the Neotropical region. According to molecular and morphological phylogenies, the tribe is monophyletic and subdivided into seven genus groups. Our main objective is to propose a revised phylogeny of Augochlorini based on a comprehensive data set including fossil species...

.... The new genus shares some characters with the two extant genera of the subfamily Cyrenoberothinae, Cyrenoberotha and Manselliberotha, and other characters are shared with three fossil genera, Microberotha, Protoberotha and Sibelliberotha. This intermediate...