Results 121 to 130 of about 21,244 (285)

New techniques for old bones: Morphometric and diffeomorphometric analysis of the bony labyrinth of the Reilingen and Ehringsdorf Neandertals

The Anatomical Record, EarlyView.
Abstract Neandertals are known to possess very distinctive traits in their bony labyrinth morphology, such as an inferiorly positioned posterior canal and a very low number of turns in the cochlea. Hence, the inner ear has been often used to assess the Neandertal status of fragmentary fossils.
Alessandro Urciuoli, Julia Diez‐Valero, Ignacio Martínez, Rolf Quam, Brian A. Keeling, Nicole M. Webb, Mercedes Conde‐Valverde   +6 more
wiley   +1 more source

Insights into the influence of priors in posterior mapping of discrete morphological characters: a case study in Annonaceae

, 2010
Background - Posterior mapping is an increasingly popular hierarchical Bayesian based method used to infer character histories and reconstruct ancestral states at nodes of molecular phylogenies, notably of morphological characters.
Richardson, James-Edward, Gort, G., Sosef, M.S.M., Chatrou Lars W., Gort Gerrit, Sosef Marc S. M., Couvreur, Thomas L. P., Gerrit Gort, Gort, Gerrit, Richardson, J.E., Sosef, Marc SM, James E Richardson, Marc S M Sosef, Richardson James E., Chatrou, L.W., Richardson, James E, Couvreur Thomas L. P., Couvreur, Thomas LP, Couvreur, T.L.P., Thomas L P Couvreur, Sosef, Marc S. M., Lars W Chatrou, Chatrou, Lars, Chatrou, Lars W.   +23 more
core   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Sensitivity analysis of ancestral state reconstruction varying reconstruction methods, transformation models and characters codification

, 2021
La reconstrucción de estados ancestrales depende de parámetros que pueden tomar diversos valores, y dependiendo de estos valores se pueden obtener diferentes resultados.
Pachón Prada, Daniela
core  

Insights from macroevolutionary modelling and ancestral state reconstruction into the radiation and historical dietary ecology of Lemuriformes (Primates, Mammalia). [PDF]

BMC Ecol Evol, 2021
Fulwood EL, Shan S, Winchester JM, Kirveslahti H, Ravier R, Kovalsky S, Daubechies I, Boyer DM.   +7 more
europepmc   +1 more source

Patterns of interspecific variation in labial microarchitecture among anthropoid primates and the evolution of the hominin lips

The Anatomical Record, EarlyView.
Comparative histological and semi‐automated image analysis of primate lips: Masson's trichrome‐stained sagittal sections were segmented to quantify the connective tissue, adipose, and muscular components, enabling interspecific comparisons of labial architecture.
Liat Rotenstreich, Kfir Eliyahu, Nir Edery, Lior Moss, Saleem Eben Bari, Assaf Marom   +5 more
wiley   +1 more source

Endothermy, neuron counts, and other issues: Further remarks on neurocognitive evolution in fossil vertebrates

The Anatomical Record, EarlyView.
Abstract Last year, we challenged the view that large‐bodied theropod dinosaurs such as Tyrannosaurus rex resembled primates in cognition and behavior, a proposition made by Herculano‐Houzel in 2023. More recently, Jensen et al. have criticized our work on this topic, raising methodological and conceptual issues.
Kai R. Caspar, Cristián Gutiérrez‐Ibáñez, Hady George, Thomas R. Holtz Jr., Darren Naish, Grant R. Hurlburt   +5 more
wiley   +1 more source

Global Alignment of Molecular Sequences via Ancestral State Reconstruction [PDF]

, 2009
Molecular phylogenetic techniques do not generally account for such common evolutionary events as site insertions and deletions (known as indels). Instead tree building algorithms and ancestral state inference procedures typically rely on substitution ...
Sebastien Roch, R Andoni, Andoni, Alexandr, Daskalakis, Constantinos, Hassidim, Avinatan, Roch, Sebastien, Avinatan Hassidim, Constantinos Daskalakis   +7 more
core  

Accounting for ambiguity in ancestral sequence reconstruction

, 2019
International audienceMotivation: The reconstruction of ancestral genetic sequences from the analysis of contemporan-eous data is a powerful tool to improve our understanding of molecular evolution.
Oliva, A, Lefort, Vincent, A Oliva, L Bréhélin, O Gascuel, Gascuel, Olivier, Guindon, S, S Guindon, V Lefort, Pulicani, S, Lefort, V, Oliva, Adrien, Brehelin, Laurent, Guindon, Stéphane, Bréhélin, L, S Pulicani, Pulicani, Sylvain   +16 more
core   +1 more source

The internal crest anatomy of Lambeosaurini (Hadrosauridae: Lambeosaurinae)

The Anatomical Record, EarlyView.
Abstract The supracranial crests of lambeosaurine hadrosaurids have long been a focus of study due primarily to their extreme morphology. The external anatomy of lambeosaurine crests is understood to be highly variable between species, but variation in their internal anatomy is less well understood.
Thomas W. Dudgeon, Courtney Brown, David C. Evans   +2 more
wiley   +1 more source