with a chance to hold/touch the reptiles and learn about reptile care and fun facts Monday at the Taneytown branch of the Carroll County Library. Nicole Osborne introduces "Cleo" a sulcata ...

Phylogeny for birds. Under this system, organisms are grouped into "clades," which are distinct branches on the phylogenetic ...

New fossilized tracks made by an ancient reptile indicate that these animals evolved tens of millions of years sooner than scientists first thought.

But the branch of the evolutionary tree that led to modern reptiles, birds and mammals — known as amniotes -- developed feet with nails or claws fit for walking on hard ground.

The earliest reptiles, birds and mammals may have borne ... show that all the great evolutionary branches of Amniota, namely Mammalia, Lepidosauria (lizards and relatives), and Archosauria ...

New discoveries of fossil clawed footprints from Australia, published in Nature, push the origin of reptiles back in time by at least 35 million years and change the entire timeline for the origin ...

But the branch of the evolutionary tree that led to modern reptiles, birds and mammals – known as amniotes — developed feet with nails or claws fit for walking on hard ground.