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Oldest existing lizard-like fossil hints at scaly origins

The fossilised remains of a reptile closely related to lizards are the oldest yet to be discovered.

Two new fossil jaws discovered in Vellberg, Germany provide the first direct evidence that the ancestors of lizards, snakes and tuatara (known collectively as lepidosaurs), were alive during the Middle Triassic period – around 240 million years ago. (more…)

Placental Mammal Diversity Blossomed After Age of Dinosaurs

By Guest PostFebruary 9, 2013Nature, Scienceafrica today, afrotheria, age of dinosaurs, american museum, americas, amnh, andrea cirranello, anthropologist, boundary, branching history, brazil, cloud based, common ancestor, cretaceous age mammal, cretaceous paleogene extinction, cretaceous terrestrial revolution, cyberinfrastructure, diversification, dna sequence data, earth, elephants to aardvarks, encoded by dna, evolutionary history, evolutionary trees, extinct biotic groups, federal university, fernando perini, fossil species, fossils and anatomy, fragmentation of gondwana, genetic, genetic data, genomic data, genomics based model, h richard lane, insect eating animal, john wible, kpg event, late cretaceous, mammal relationships, marcelo weksler, mary silcox, massive dataset, maureen oleary, mesozoic era, michael novacek, minas gerais, molecular clock, molecules and morphology, morphobank, nancy simmons, national museum, national science foundation, natural history, non avian dinosaurs, nsf, optimization, paleontologist, phenomic data, phenomic matrix, phenomic systems, phylophenomics, physical traits, placental mammal diversity, placental mammal tree, publicly accessible database, robb brumfield, scarborough, stony brook university, time of origin, tree of life, university of toronto, well preserved fossils

Scientists build new ‘tree of life’ for placentals, visualize common ancestor

Scientists have reconstructed the common ancestor of placental mammals–an extremely diverse group including animals ranging from rodents to whales to humans–using the world’s largest dataset of both genetic and physical traits. (more…)

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Oldest existing lizard-like fossil hints at scaly origins

Fossil Discovery Represents New Milestone in Early Mammal Evolution