Sentences with phrase «skeletal material»

«This discovery really highlights the importance of finding and examining skeletal material from these rare dinosaurs,» concluded Derek Larson, co-author on the study and Assistant Curator of the Philip J. Currie Dinosaur Museum.»

They were first identified, on the basis of skeletal material, in the 1920s, but it wasn't until the 1970s that their behavior in the wild was studied, and then only sporadically.

It was, however, difficult to exactly determine the age of the human skeletal material using conventional radiocarbon dating, because the collagen in the bones had been completely washed out due to the long period spent in water.

Coral reefs are typically massive biogenic formations of calcium carbonate (limestone) that is deposited within or around the bodies of the inhabitants of the reef as skeletal material.

The discovery in Eastern... Central Asia of large numbers of human remains, including skeletal materials and many extremely well - preserved mummies, must rank high among the most important events in the archaeology of the last quarter century.

«The ethical issues are profound in dealing with skeletal materials of previously enslaved individuals,» says Fatimah Jackson, a biologist and anthropologist at Howard who previously worked as the director of genetics for the New York African Burial Ground Project.

Another chapter, «Bones and the law», has a particularly misleading title since, instead of being devoted to forensic cases, or to the thorny problem of objections by indigenous peoples to the disturbance of their ancestors» remains (a topic not even alluded to), it is merely a detailed account of how far you can sex and age skeletal material.

The new stature estimate for one of the individuals greatly exceeds those previously reconstructed from fossilized skeletal material or footprint data for any A. afarensis individual, consistent with substantial body size variation and likely sexual dimorphism within a single species of sexually dimorphic australopithecines.

However, it was not until 2013 when skeletal material from an adult male orangutan killed in a human - animal conflict became available, and showed the uniqueness of this population.

Recent research concerns morphological and phylogenetic aspects of modern human diversity, based on analysis of recent and fossil skeletal material.

The problem is that although there is evidence of stone tools on Flores dated to 840,000 years ago, there is no associated skeletal material, and all examples of H. floresiensis are already small - bodied.

Previous studies have already shown that ocean acidification will make tropical corals less able to build skeletal material, even before waters become corrosive.

[1, 2] Forensic anthropologists are regularly responsible for the exhumation of (mass) graves, analysis of human skeletal material, collecting and analyzing ante-mortem (before death) data to assist with the identification of decedents, and providing legal testimony.

The material that makes up pteropod shells is aragonite, a common mineral form of calcium carbonate, which is also secreted by other marine organisms to form external skeletal material.

Tetrapod footprints and skeletal material from more than 70 localities in eastern North America indicate that large theropod dinosaurs appeared less than 10,000 years after the Triassic - Jurassic boundary and less than 30,000 years after the last Triassic taxa, in synch with a terrestrial mass extinction.

afarensis from both skeletal material and footprint data.

The skeletal material was found in sandstone in the Woronso - Mille paleontological study area that lies some three dozen miles north of Hadar, the fossiliferous site that has yielded since 1973, the most fossils from a single site attributed to a single species, Australopithecus afarensis, the same species designation claimed for Kadanuumuu.

According to the authors of the Nature letter, only a few genetic laboratories in the world control much of the skeletal material that could be sequenced by researchers.

A distantly related cousin, Prince Andrew Andreevich Romanov of San Francisco, California, was used as a living relative to compare to the skeletal material.