Results 61 to 70 of about 6,941 (171)

The variability of giraffe skull morphology

Journal of Anatomy, EarlyView.
What does giraffe skull shape tell us about their development and evolution? Abstract Giraffe (Giraffa spp.) are among the most unique and charismatic extant animals, largely due to their distinct morphology. The evolutionary and developmental origin of ossicones is a key factor in giraffid biology, yet other features building their characteristic head
Nikolaos Kargopoulos, Jesús Marugán‐Lobón, Anusuya Chinsamy‐Turan, Bernard R. Agwanda, Michael Butler Brown, Stephanie Fennessy, Sara Ferguson, Rigardt Hoffman, Fredrick Lala, Arthur Muneza, Ogeto Mwebi, Moses Otiende, Alice Petzold, Sven Winter, Abdoul Razack Moussa Zabeirou, Julian Fennessy   +15 more
wiley   +1 more source

Programas de Investigación en Paleobiología y Teoría evolutiva

Arbor: Ciencia, Pensamiento y Cultura, 2002
Se presenta una discusión del papel actual de la paleontología en el estudio de la evolución orgánica. Diferentes descubrimientos, tanto teóricos como empíricos, están cuestionando algunos de los principios básicos del paradigma neodarvinista.
Antonio Rosas González
doaj   +1 more source

Computed tomography reveals multiple origins of extreme caudal vertebral pneumaticity in sauropod dinosaurs

Journal of Anatomy, EarlyView.
Here, we present novel CT scan data of caudal vertebrae of six Middle–Late Jurassic sauropods, representing several eusauropod lineages. We synthesise these new data with a comprehensive critical appraisal of purported external and internal evidence for caudal vertebral PSP in Sauropodomorpha.
Samantha L. Beeston, Daniela Schwarz, Paul Upchurch, Stephen F. Poropat, Patrick Asbach, Philip D. Mannion   +5 more
wiley   +1 more source

Inside a duck‐billed dinosaur: Vertebral bone microstructure of Huallasaurus (Hadrosauridae), Upper Cretaceous of Patagonia

The Anatomical Record, Volume 309, Issue 7, Page 1702-1712, July 2026.
Abstract Dinosaurs evolved a unique respiratory system with air sacs that contributed to their evolutionary success. Postcranial skeletal pneumaticity (PSP) has been used to infer the presence of air sac systems in some fossil archosaurs. While unambiguous evidence of PSP is well documented in pterosaurs and post‐Carnian saurischians, it remains absent
Tito Aureliano, Aline M. Ghilardi, Jonatan Kaluza, Agustín G. Martinelli   +3 more
wiley   +1 more source

Paleontología. Prácticas

, 1980
Paleontología ...
Buitrón, Jorge A.
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Primera Exposición de Paleontología [PDF]

, 1994
Folleto informativo de una exposición de paleontología realizada en el antiguo Museo de la Nación en el año ...
Proyecto Especial Museo de la Nación
core  

In Search of the Lost Brown Trout (Salmo trutta Complex) Using DNA of Ancient and Modern Samples From the Southern Italian Peninsula

Evolutionary Applications, Volume 19, Issue 6, June 2026.
ABSTRACT The current diversity and distribution of species and populations have been shaped by the major climatic oscillations during the Quaternary. The brown trout (Salmo trutta) is a striking example of the strong effect of past climate changes on the evolutionary history of species, in fact, the alternation of glacial/interglacial cycles has led to
Tatiana Fioravanti, Andrea Splendiani, Tommaso Righi, Antonio Tagliacozzo, Daniele Albertini, Vincenzo Caputo Barucchi   +5 more
wiley   +1 more source

El Museo Arqueológico-Paleontológico Municipal de Rojales [PDF]

Boletín del Museo Arqueológico Nacional, 2017
El Museo comienza mostrando la evolución paleogeográfica del territorio a través de los testimonios de infinidad de seres que vivieron en nuestra zona hace millones de años. Los grandes vertebrados son quizás los restos más espectaculares de la colección,
Manuel de Gea Calatayud, Leoncio M. Cartagena Martínez   +1 more
doaj  

Hindlimb functional morphology and locomotor biomechanics of the small Late Triassic pseudosuchian reptile Gracilisuchus stipanicicorum (Archosauria: Gracilisuchidae)

Journal of Anatomy, Volume 248, Issue 6, Page 1026-1063, June 2026.
A three‐dimensional biomechanical model of the musculoskeletal system is used to analyse the potential locomotor functions of the small (~1 kg) Late Triassic archosaurian reptile Gracilisuchus stipanicicorum. The study finds that, potentially like the ancestral archosaur, this taxon was probably quadrupedal, plantigrade and neither strongly sprawling ...
Agustina Lecuona, Emily Keeble, Yuting Lin, John R. Hutchinson   +3 more
wiley   +1 more source

Paleontología general de invertebrados

, 1989
Paleontología general de ...
Buitrón Sánchez, Blanca Estela
core