Results 81 to 90 of about 1,108 (163)

New insights aboutHinasuri nehuensis(Aves, Rheidae, Palaeognathae) from the early Pliocene of Argentina

Alcheringa: An Australasian Journal of Palaeontology, 2016
Picasso, M.B.J. & Mosto, M.C., February 2016. New insights about Hinasuri nehuensis (Aves, Palaeognathae) from the early Pliocene of Argentina. Alcheringa 40, xxx–xxx. ISSN 0311-5518.Hinasuri nehuensis Tambussi was a robust, extinct rheid bird from the early Pliocene of Buenos Aires province, Argentina.
Picasso, Mariana Beatriz Julieta, Mosto, María Clelia   +1 more
openaire   +2 more sources

How smart was T. rex? Testing claims of exceptional cognition in dinosaurs and the application of neuron count estimates in palaeontological research

The Anatomical Record, Volume 307, Issue 12, Page 3685-3716, December 2024.
Abstract Recent years have seen increasing scientific interest in whether neuron counts can act as correlates of diverse biological phenomena. Lately, Herculano‐Houzel (2023) argued that fossil endocasts and comparative neurological data from extant sauropsids allow to reconstruct telencephalic neuron counts in Mesozoic dinosaurs and pterosaurs, which ...
Kai R. Caspar, Cristián Gutiérrez‐Ibáñez, Ornella C. Bertrand, Thomas Carr, Jennifer A. D. Colbourne, Arthur Erb, Hady George, Thomas R. Holtz Jr, Darren Naish, Douglas R. Wylie, Grant R. Hurlburt   +10 more
wiley   +1 more source

Anatomical description of neornithine stomach with implications on neornithine stomach morphology

Journal of Anatomy, Volume 245, Issue 5, Page 787-796, November 2024.
The representatives of the four neornithine stomach morphotypes proposed in this study. Abstract Neornithines, the most diversified extant tetrapods, have been a classic example for understanding form–function relationships, particularly in the context of the interaction between dietary ecology and neornithine phenotypic evolution.
Ryuji Takasaki, Yoshitsugu Kobayashi
wiley   +1 more source

352 - Quantifying variation of the ostrich wing (Aves: Paleognathae) [PDF]

, 2023
The common Ostrich (Struthio camelus) is a member of a large clade of flightless birds known as the ratites. The ratites are morphologically classified by their absence of a keeled sternum that, in flighted birds, provides a large surface area for flight
Marzec, Isabel
core  

Paleoneurology of stem palaeognaths clarifies the plesiomorphic condition of the crown bird central nervous system

Journal of Morphology, Volume 285, Issue 6, June 2024.
We describe the nearly complete digital endocasts of the brain and bony labyrinth of the neotype specimen of Lithornis vulturinus, a palaeognathous bird from the early Eocene of Europe. Lithornis may provide the clearest insights to date into the neuroanatomy of the ancestral crown bird, combining an ancestrally unflexed brain with a caudally oriented ...
Klara E. Widrig, Guillermo Navalón, Daniel J. Field   +2 more
wiley   +1 more source

Comparative digital reconstruction of Pica pica and Struthio camelus and their cranial suture ontogenies

The Anatomical Record, Volume 307, Issue 1, Page 5-48, January 2024.
Abstract To date, several studies describe post‐hatching ontogenetic variation in birds; however, none of these studies document and compare ontogenetic variation of the entire skull in multiple avian species. Therefore, we studied ontogenetic skull variation of two bird species with very different ecologies, Pica pica, and Struthio camelus, using μCT ...
Olivia Plateau, Todd L. Green, Paul M. Gignac, Christian Foth   +3 more
wiley   +1 more source

Un individuo juvenil de Pterocnemia pennata (Aves, Rheidae) en el Pleistoceno de la Región Pampeana: implicancias ontogenéticas y ambientales

Revista Mexicana de Ciencias Geológicas, 2018
Se da a conocer un individuo juvenil de Pterocnemia pennata (MACN 14780) procedente del Bonaerense (Pleistoceno Tardío temprano) de la localidad de Salto (Partido de Salto), en el norte de la provincia de Buenos Aires (Argentina) constituyendo el ...
Mariana B. J. Picasso, Federico J. Degrange, María Clelia Mosto, Claudia P. Tambussi   +3 more
doaj  

The peculiar syrinx of Rhea americana (Greater Rhea, Palaeognathae) [PDF]

, 2020
Se estudió la anatomía esqueletaria y muscular de la siringe del Ñandú Grande (Rhea americana) durante su ontogenia postnatal usando técnicas de tinción diferencial de tejido óseo y cartilaginoso.
Carril, Julieta, Picasso, Mariana Beatriz Julieta   +1 more
core  

Spatial and temporal arrival patterns of Madagascar's vertebrate fauna explained by distance, ocean currents, and ancestor type [PDF]

, 2012
How, when, and from where Madagascar's vertebrates arrived on the island is poorly known, and a comprehensive explanation for the distribution of its organisms has yet to emerge.
Ali, Bourjea, Carranza, D. W. Krause, J. R. Ali, K. E. Samonds, Kappeler, Krause, L. R. Godfrey, M. R. Sutherland, M. T. Irwin, M. Vences, McCall, Noonan, Queiroz, S. M. Goodman, Vences   +16 more
core   +1 more source

Third Report on Chicken Genes and Chromosomes 2015 [PDF]

, 2015
Following on from the First Report on Chicken Genes and Chromosomes [Schmid et al., 2000] and the Second Report in 2005 [Schmid et al., 2005], we are pleased to publish this long-awaited Third Report on the latest developments in chicken genomics.
Aken, B. L., Antin, P. B., Archibald, A. L., Ashwell, C., Blackshear, P. J., Boschiero, C., Brown, C. T., Burgess, S. C., Burt, D. W., Cheng, H. H., Chow, W., Coble, D. J., Cooksey, A., Crooijmans, R. P. M. A.., Damas, J., Davis, R. V. N., de Koning, D.-J., Delany, M. E., Derrien, T., Desta, T. T., Dunn, I. C, Dunn, M., Ellegren, H., Erb, I., Eöry, L., Farré, M., Fasold, M., Fleming, D., Flicek, P., Fowler, K. E., Froman, D. P., Frésard, L., Garceau, V., Gardner, P. P., Gheyas, A. A., Griffin, D. K., Groenen, M. A. M., Haaf, T., Hanotte, O., Hart, A., Hedges, S. B., Hertel, J., Howe, K., Hubbard, A., Hume, D. A., Häsler, J., Kaiser, P., Kedra, D., Kemp, S. J., Klopp, C., Kniel, K. E., Kuo, R., Lagarrigue, S., Lamont, Susan, Lamont, Susan, Larkin, D. M., Lawal, R. A., Markland, S. M., McCarthy, F., McCormack, H. A., McPherson, M. C., Motegi, A., Muljo, S. A., Münsterberg, A., Nag, R., Nanda, I., Neuberger, M., Nitsche, A., Notredame, C., Noyes, H., O'Connor, R., O'Hare, E. A., Oler, A. J., Ommeh, S. C., Pais, H., Persia, M., Pitel, F., Preeyanon, L., Prieto Barja, P., Pritchett, E. M., Rhoads, D. D., Robinson, C. M., Romanov, M. N., Rothschild, M., Rothschild, Max, Roux, P.-F., Schmid, M., Schmidt, C. J., Schneider, A.-S., Schwartz, M. G., Searle, S. M., Skinner, M. A., Smith, C. A., Smith, J., Stadler, P. F., Steeves, T. E., Steinlein, C., Sun, L., Takata, M., Ulitsky, I., Wang, Q., Wang, Y., Warren, W. C., Wood, J. M. D., Wragg, D., Zhou, H.   +105 more
core   +9 more sources