Results 51 to 60 of about 1,895 (219)

Another look at tarsometatarsi of early penguins

open access: yesPolish Polar Research, 2015
The tarsometatarsus, a compound bone from the lower leg in birds, is the most important skeletal element in fossil penguin taxonomy, especially in the case of early members of this group.
Jadwiszczak Piotr
doaj   +1 more source

GEOCHEMICAL SIGNALS IN PALEOGENE PENGUINS FROM SEYMOUR ISLAND (ISLA MARAMBIO), ANTARCTIC PENINSULA

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2023
Trace elements, particularly rare earth elements (REE), are widely used as proxies to reconstruct paleoenvironmental and taphonomic conditions. We traced these elements in fossil penguin bones collected along the Paleogene sequence exposed in Seymour ...
Leandro Martín Pérez   +6 more
doaj   +1 more source

Behavioural evolution in penguins does not reflect phylogeny [PDF]

open access: yes, 2008
Over the past two decades, behavioural biologists and ecologists have made effective use of the comparative method, but have often stopped short of adopting an explicitly phylogenetic approach. We examined 68 behaviour and life history (BLH) traits of 15
Gray, R. D.   +3 more
core   +1 more source

Um nematodeo parasito do pinguim Spheniscus magellanicus (Forster) (Ascaridoidea, Anisakidae) A nematode parasite of the penguin Spheniscus magellanicus (Forster) (Ascaroidea, Anisakidae)

open access: yesMemorias do Instituto Oswaldo Cruz, 1984
O material estudado foi coletado no "pinguim naufragado", Sphenicus magellanicus (Forster), na baia de Guanabara, Rio de Janeiro e cedido pela bióloga Carla Chediak.
Cláudia Portes Santos
doaj   +1 more source

At the root of the early penguin neck: a study of the only two cervicodorsal spines recovered from the Eocene of Antarctica [PDF]

open access: yesPolar Research, 2014
The spinal column of early Antarctic penguins is poorly known, mainly due to the scarcity of articulated vertebrae in the fossil record. One of the most interesting segments of this part of the skeleton is the transitional series located at the root of ...
Piotr Jadwiszczak
doaj   +1 more source

Micro‐CT guided illustration of the head anatomy of penguins (Aves: Sphenisciformes: Spheniscidae)

open access: yesJournal of Morphology, 2022
Abstract The illustration is an important tool to aid in the description and understanding of anatomy, and penguins (Aves: Sphenisciformes: Spheniscidae) are an important clade in environmental monitoring, paleontology, and other research fields. Traditionally, anatomic illustration has been informed by dissection.
Peter W. Hadden   +6 more
openaire   +2 more sources

Blood parameters and measurements of weight in the rehabilitation of Magellanic penguins (Spheniscus magellanicus, Foster 1781)

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2015
During the austral winter the appearance of the Magellanic penguin (Spheniscus magellanicus) is common on the southern coast of Brazil. The oil pollution constitutes a major cause of death of these birds.
A.M. Martins   +4 more
doaj   +1 more source

Una nueva especie de spheniscidae del Mioceno Tardío de la Formación Pisco, Perú

open access: yesBulletin de l'Institut Français d'Études Andines, 2003
A new species of genus Spheniscus is described based on cranial elements from Late Miocene of Pisco Formation on the central-southern coast of Peru.
Marcelo Stucchi   +2 more
doaj   +1 more source

Gastrointestinal helminths of Gentoo penguins (Pygoscelis papua) from Stranger Point, 25 de Mayo/King George Island, Antarctica [PDF]

open access: yes, 2013
Fil: Díaz, Julia Inés. Centro de Estudios en Parasitología y Vectores (CEPAVE). Facultad de Ciencias Naturales y Museo. Universidad Nacional de La Plata; ArgentinaFil: Fusaro, Bruno. Centro de Estudios en Parasitología y Vectores (CEPAVE).
Barbosa, Andrés   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy