Sentences with phrase «on early vertebrates»

It was widely ignored until Philippe Janvier cited my paper in the definitive book on early vertebrates.

Not exact matches

protected animals» (i.e., bacteria, fungi, plants, invertebrate animals); studies on vertebrates at early stages of development (before they become?

A team led by Xing Xu at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing used computer software to examine evolutionary relationships among early birds and related dinosaurs, based on 374 skeletal characteristics.

It seems far more likely that variation in early terrestrial vertebrates was honed down to five because this was an adequate number for scraping around on land.

She's now working on a new game, «Suddenly Cute,» in which players learn how small changes early in a vertebrate's embryonic development can lead to big differences in adults.

A quarry in Strud, Belgium, that was excavated between 2004 and 2015 yielded fossils of multiple species of placoderms, which are extinct, armored fish that represent some of the earliest jawed vertebrates on Earth.

Schoppmeier and his colleagues are now trying to determine whether Notch and related genes turn on and off in the same fashion in early spider embryos as they do in vertebrates.

In many vertebrates, ranging from fish to early synapsids (ancestors of mammals), denticles are commonly found in dense concentrations on the bones of the hard palate (roof of the mouth).

According to the study, published in the Journal of Vertebrate Paleontology on Tuesday, after the dinosaurs died out 66 million years ago, the Earth experienced an extremely warm period called the Early Eocene about 53 million to 50 million years ago, during which period, North American mammal communities were quite distinct from the ones that exist today.

Throughout his career, Jessell has focused on the early wiring of the vertebrate central nervous system.

By looking for cell populations that would resemble the vertebrate chordamesoderm (a population of mesodermal midline cells that converge medially to give rise to the notochord; red in Fig. 1A), we identified segmental pairs of mesodermal cells on the non — bone morphogenetic protein (BMP) body side (5) that stood out by early and continuous expression of colA1, encoding collagen type A (Fig. 2, A to D).

Since the discovery of well - preserved fossils of an early Cretaceous sauropod dinosaur from Tanba in August 2006, our museum saff have been engaging themselves to excavation of dinosaur and other Cretaceous vertebrate fossils from this and adjacent regions, as well as academic studies on the resultant materials.