48 documents found, page 1 of 5

Les sinus frontaux au cours de l’évolution humaine

Frontal sinuses and human evolution

The frontal sinuses are cavities inside the frontal bone located at the junction between the face and the cranial vault and close to the brain. Despite a long history of study, understanding of their origin and variation through evolution is limited. This work compares most hominin species’ holotypes and other key individuals with extant hominids. It provides a unique and valuable perspective of the variation i...

Coprolite palynology from Abrigo do Lagar Velho (Portugal) and a revision of Gr...

Palynological investigations on Gravettian coprolites of Abrigo do Lagar Velho (Vale do Lapedo, Leiria, Portugal) dated between ca. 30 to ca. 27.3 ka cal BP are presented. The palaeoecological data shows a semi-forested landscape with Pinus, Poaceae, Erica, Artemisia, Juniperus and Quercus as the dominant taxa. A diversity of trees, shrubs, and herbs is also noticeable, including broad-leaf trees, Mediterranean...

A speleothem record from Portugal reveals phases of increased winter precipitat...

The European climate during the Holocene period is characterised by frequent changes of temperature and precipitation. The North Atlantic plays a major role as a driver for European climate and is a dominant precipitation source, particularly for the western European and north African realm. Atmospheric pressure gradients over the Atlantic (North Atlantic Oscillation, NAO), Atlantic circulation patterns (Atlant...

The fossils of castor fiber from the middle Pleistocene site of Gruta da Aroeir...

Here we analyze the fossil remains of Castor fiber from the Middle Pleistocene site of Gruta da Aroeira, in the Almonda karst system, Tagus basin (Torres Novas, Portugal) and discuss the archaeological implications of the presence of beavers in the region. The Almonda karst system has been the backdrop for human evolution in Portugal, because there are different localities, of different ages, from the Middle Pl...

O sítio acheulense do Plistocénico médio da Gruta da Aroeira

Datado de cerca de 400 ka (estádio isotópico marinho 11), o sítio da Gruta da Aroeira (Torres Novas, Portugal) é uma das poucas jazidas do Plistocénico Médio que entregou um crânio fóssil de hominídeo associado a bifaces acheulenses em contexto de gruta. A nossa abordagem multi-analítica do registo arqueológico incidiu sobre diferentes categorias de vestígios: o crânio humano (Aroeira 3), os restos faunísticos,...

Early evidence of fire in south-western Europe: the Acheulean site of Gruta da ...

The site of Gruta da Aroeira (Torres Novas, Portugal), with evidence of human occupancy dating to ca. 400 ka (Marine Isotope Stage 11), is one of the very few Middle Pleistocene localities to have provided a fossil hominin cranium associated with Acheulean bifaces in a cave context. The multi-analytic study reported here of the by-products of burning recorded in layer X suggests the presence of anthropogenic fi...

The cochlea of the Aroeira 3 Middle Pleistocene cranium—a comparative study

Amber imitation? Two unusual cases of Pinus resin-coated beads in Iberian Late ...

A group of beads from the artificial cave of La Molina (Lora de Estepa, Sevilla) and Cova del Gegant (Sitges, Barcelona) were made from a biogenic raw material and intentionally covered by a layer of resin. This is the first time this type of treatment has been documented on elements of adornment in the Late Prehistory of the Iberian Peninsula. The composition and nature of the coatings are analysed and the sym...

New macaque remains from the Middle Pleistocene of Gruta da Aroeira (Almonda ka...