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Theropod Dinosaurs
The Theropoda (meaning "beast-footed") dinosaurs
were a suborder of the the
Saurischian
dinosaurs. Dinosaurs in the Theropod suborder include, among others,
Allosaurus,
Spinosaurus, and
Tyrannosaurus rex.
Theropods first appeared during the
Triassic period,
about 230 million years ago, and gradually diverged into
many different lineages.
At some time during the
Jurassic period,
or perhaps earlier, one of the lineages gave rise to the first
first birds.
Theropod dinosaurs survived until the
end of the
Cretaceous period,
about 65 million years ago, when all the remaining non-avian
dinosaurs became
extinct,
although of course birds (which technically are a type of Theropod dinosaur)
survive to the present day.
Theropod dinosaurs were bipedal (walked on two legs). Their forelimbs
generally had a highly restricted range of motion, for example
they could not rotate ("pronate") their forearms so that their
palms faced backwards or towards the ground.
The vast majority of theropods were carnivores (meat-eaters), although
a number of herbivorous (plant-eating) species did evolve towards
during
Cretaceous period
(see, for example,
Alxasaurus).
Theropod dinosaurs first appeared about 230 million years ago, and survived until the end of the Cretaceous period, about 65 million years ago
Types of Theropod Dinosaur
Here is a list of some Theropod dinosaurs:
Related Information & Resources
See Also
Theropod Books
Here are some books from Amazon.com:
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By Rubén Molina-Pérez & David Connolly
Princeton University Press
Released: 2019-06-25
Hardcover (288 pages)
 | List Price: $29.95*
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An illustrated record book of theropod facts and figures―from the biggest to the fastest to the smartest The theropod dinosaurs ruled the planet for millions of years, with species ranging from the mighty Tyrannosaurus rex to feathered raptors no bigger than turkeys. Dinosaur Facts and Figures is a stunningly illustrated book of records for these marvelous creatures―such as the biggest, the smallest, and the fastest theropods, as well as the ones with the most powerful bite. This one-of-a-kind compendium features more than 3,000 records, covers some 750 theropod species, and includes a wealth of illustrations ranging from diagrams and technical drawings to full-color reconstructions of specimens. The book is divided into sections that put numerous amazing theropod facts at your fingertips. “Comparing Species” is organized by taxonomic group and gives comparisons of the size of species, how long ago they lived, and when they were discovered. “Mesozoic Calendar” includes spreads showing the positions of the continents at different geological time periods and reconstructions of creatures from each period. “Prehistoric Puzzle” compares bones, teeth, and feathers while “Theropod Life” uses vivid, user-friendly graphics to answer questions such as which dinosaur was the smartest and which had the most powerful bite. Other sections chart theropod distribution on the contemporary world map, provide comprehensive illustrated listings of footprints, compile the physical specifications of all known theropods and Mesozoic birds, and much more. - The essential illustrated record book for anyone interested in dinosaurs
- Features thousands of records on everything from the smartest and fastest theropods to the largest theropod eggs
- Includes more than 2,000 diagrams and drawings and more than 300 digital reconstructions
- Covers more than 750 theropod species, including Mesozoic birds and other dinosauromorphs
- Provides detailed listings of footprints, biometric specifications, and scholarly and popular references
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By Rubén Molina-Pérez
The Natural History Museum
Released: 2019-06-06
Hardcover (288 pages)
 | Lowest New Price: $28.58*
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Click Here | Product Description:
Theropod dinosaurs ruled the planet for millions of years, with species ranging from the mighty Tyrannosaurus rex to feathered raptors no bigger than turkeys. The Encyclopedia of Dinosaurs: The Theropods is a stunningly illustrated guide packed with everything you could ever wish to know about theropods.
This one-of-a-kind compendium features more than 3,000 records, covers some 750 theropod species, and includes a wealth of illustrations ranging from diagrams and technical drawings to full-colour reconstructions of specimens. The book is divided into sections that put numerous amazing theropod facts at your fingertips.
'Comparing Species' reveals detailed size comparisons, how long ago they lived, and when they were discovered. 'Mesozoic Calendar' shows the positions of the continents at different geological time periods and reconstructions of creatures from each period. 'Prehistoric Puzzle' compares bones, teeth, and feathers while 'Theropod Life' uses vivid, user-friendly graphics to answer questions such as which dinosaur was the smartest and which had the most powerful bite.
Other sections chart theropod distribution on the contemporary world map, provide comprehensive illustrated listings of footprints, compile the physical specifications of all known theropods and Mesozoic birds, and much more. |
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By Steve Parker
Franklin Watts
Released: 2017-09-01
Paperback (32 pages)
 | List Price: $9.95*
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Discover the world in which extinct predators lived, their physical characteristics, and how they hunted and survived.
The theropod group of dinosaurs saw the biggest, fiercest predators that ever walked the Earth - and also some of the smallest, which were nevertheless incredibly deadly for their size. Hundreds of kinds of these killers existed through the Age of Dinosaurs, from about 230 to 66 million years ago. |
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By Mark Musy
Mark Musy
Released: 2012-01-24
Kindle Edition (26 pages)
 | | Product Description:
Theropod ART presents photos of very realistic carnosaur sculptures,
drawings and illustrations with detailed descriptions revealing how he
designs them. Mark Musy shows them in his small scale traveling
dinosaur art exhibit. His e-book includes T-rex, Acrocanthosaurus,
Giganotosaurus, and several megalosaurids. The sculptures depicted
in the book are between 31 to 45 inches long. The artist prefers to
sculpt theropods; that's the large two footed dinosaurs with big teeth. |
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By Clare Hibbert
Enslow Publishing
Released: 2018-08-15
Paperback (32 pages)
 | List Price: $10.53*
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Two-legged carnivorous dinosaurs, known as theropods, are one of the most recognizable dinosaur types. Going beyond Tyrannosaurus rex, this book showcases many theropods, including feathered dinosaurs (dromaeosaurs) that, once discovered, provided one of the missing links between dinosaurs and birds. Although scientists have not discovered very many theropod fossils, they have still discovered a great deal about how these dinosaurs hunted, where they lay their eggs, and much more. Fact boxes, timelines, and images will help readers learn all about these fierce prehistoric carnivores. |
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By Federico Agnolin
Brand: Springer
Released: 2013-02-27
Paperback (108 pages)
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Product Description:
Although consensus exists among researchers that birds evolved from coelurosaurian theropods, paleontologists still debate the identification of the group of coelurosaurians that most closely approaches the common ancestor of birds. The last 20 years witnessed the discovery of a wide array of avian-like theropods that has considerably amplified the anatomical disparity among deinonychosaurians, some of which resemble Archaeopteryx more than Deinonychus. Among these newly discovered theropods that show remarkable bird-like characteristics are the four-winged theropods Microraptor and Anchiornis, and the unenlagiids Unenlagia, Buitreraptor, and Rahonavis. A bizarre group of minute-sized coelurosaurs, the Scansoriopterygidae, also exhibits some avian similarities that lead some authors to interpret them as more closely related to birds than other dinosaurs. With the aim to explore the phylogenetic relationships of these coelurosaurians and birds, we merged recently published integrative databases, resulting in significant changes in the topological distribution of taxa within Paraves. We present evidence that Dromaeosauridae, Microraptoria, Unenlagiidae, and Anchiornis + Xiaotingia form successive sister taxa of Aves, and that the Scansoriopterygidae are basal coelurosaurians not closely related to birds. The implications in the evolutionary sequence of anatomical characters leading to birds, including the origin of flight, are also considered in light of this new phylogenetic hypothesis. |
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By John H. Ostrom
The Yale Peabody Museum
Released: 2019-10-22
Paperback (196 pages)
| List Price: $35.00*
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John H. Ostrom’s expeditions to the Bighorn Basin of Wyoming and Montana in the 1960s resulted in discoveries and research that would change long-held concepts in paleontology. This fiftieth-anniversary edition of his now well-known description of the type specimen of Deinonychus antirrhopus revisits the work that redefined theropod dinosaurs as the intelligent, agile, and gregarious ancestors of modern birds and led in the late twentieth century to a renaissance in the study of dinosaurs and the evolution of flight. |
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