Evolution of birds - Wikipedia
WEBFor more than a century, the small theropod dinosaur Archaeopteryx lithographica from the Late Jurassic period was considered to have been the earliest bird. Modern phylogenies place birds in the dinosaur clade Theropoda.
Origins of Birds | Evolution, First Birds, & Facts | Britannica
WEBAug 15, 2024 · The interactive spotlights seven groups of animals that have contributed to the scientific understanding of the evolution of the first birds.
The origin of birds - Understanding Evolution
WEBThe hunt for the ancestors of living birds began with a specimen of Archaeopteryx, the first known bird, discovered in the early 1860s. Like birds, it had feathers along its arms and tail, but unlike living birds, it also had teeth and a long bony tail.
Origin of birds - Wikipedia
WEBThe present scientific consensus is that birds are a group of maniraptoran theropod dinosaurs that originated during the Mesozoic Era. A close relationship between birds and dinosaurs was first proposed in the nineteenth century after the discovery of the primitive bird Archaeopteryx in Germany.
The first birds - Australian Museum
WEBThe first birds were in fact more like small dinosaurs than they were like any bird today. The earliest known (from fossils) bird is the 150-million-year-old Archaeopteryx, but birds had evolved before then. A range of birds with more advanced features appeared soon …
How Birds Evolved from Dinosaurs | Scientific American
WEBJan 1, 2017 · Long, straight legs and feet with three skinny main toes—hallmarks of the modern bird silhouette—first appeared more than 230 million years ago in the most primitive dinosaurs.
Tracking the Emergence of Birds | Smithsonian
WEBOct 27, 2010 · The key to this evolutionary pattern is Archaeopteryx, a 150-million-year-old feathered dinosaur traditionally regarded as the earliest known bird. This sets the origin of birds in the Late...
Archaeopteryx : An Early Bird
WEBArchaeopteryx is considered by many to be the first bird, being of about 150 million years of age. It is actually intermediate between the birds that we see flying around in our backyards and the predatory dinosaurs like Deinonychus.
How Dinosaurs Shrank and Became Birds - Scientific American
WEBJun 12, 2015 · Modern birds descended from a group of two-legged dinosaurs known as theropods, whose members include the towering Tyrannosaurus rex and the smaller velociraptors.
Archaeopteryx | Size, Fossils, & Facts | Britannica
WEBAug 21, 2024 · Archaeopteryx, genus of feathered dinosaur that was once thought to be the oldest known fossil bird. The specimens date to approximately 150 million years ago, during the Late Jurassic Epoch (163.5 million to 145 million years ago), and all were found in the Solnhofen Limestone Formation in Bavaria, Germany, starting in 1861.
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