Temporal range: Early Cretaceous (Aptian to Albian), 115–108 Ma
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T. dossi on exhibit in the Perot Museum of Nature and Science
Scientific classification
Domain:
Eukaryota
Kingdom:
Animalia
Phylum:
Chordata
Clade:
Dinosauria
Clade:
†Ornithischia
Clade:
†Ornithopoda
Clade:
†Iguanodontia
Genus:
†Tenontosaurus Ostrom, 1970
Species
†T. tilletti Ostrom, 1970 (type)
†T. dossi Winkler, Murry & Jacobs, 1997
Tenontosaurus (/tɪˌnɒntəˈsɔːrəs/ti-NON-tə-SOR-əs; lit.'sinew lizard') is a genus of iguanodontian ornithopod dinosaur. It had an unusually long, broad tail, which like its back was stiffened with a network of bony tendons.
The genus is known from the late Aptian to Albian ages of the Early Cretaceous period sediments of western North America, dating between 115 and 108 million years ago. It contains two species, Tenontosaurus tilletti (described by John Ostrom in 1970[1]) and Tenontosaurus dossi (described by Winkler, Murry, and Jacobs in 1997).[2] Many specimens of T. tilletti have been collected from several geological formations throughout western North America. T. dossi is known from only a handful of specimens collected from the Twin Mountains Formation of Parker County, Texas.
^Cite error: The named reference ostrom1970 was invoked but never defined (see the help page).
^Cite error: The named reference winkler1997 was invoked but never defined (see the help page).
years ago. It contains two species, Tenontosaurus tilletti (described by John Ostrom in 1970) and Tenontosaurus dossi (described by Winkler, Murry, and...
Cretaceous. Some members include Camptosaurus, Dryosaurus, Iguanodon, Tenontosaurus, and the hadrosaurids or "duck-billed dinosaurs". Iguanodontians were...
including the skull. Its discovery serves as a link between the genus Tenontosaurus and the Rhabdodontidae, with both along with Iani being members of the...
closely associated with those of the ornithopod Tenontosaurus. Teeth discovered associated with Tenontosaurus specimens imply they were hunted, or at least...
Murry, Phillip A.; Jacobs, Louis L. (June 19, 1997). "A New Species of Tenontosaurus (Dinosauria: Ornithopoda) from the Early Cretaceous of Texas". Journal...
paleoartistic cliché, such as a Tenontosaurus walking alone without a predatory Deinonychus in sight (Tenontosaurus is almost exclusively depicted in...
by Norman recovered a grouping of Hypsilophodon, Rhabdodontidae and Tenontosaurus, which he referred to as Hypsilophodontia. All other analyses from around...
years ago. The Antlers Formation contains fossils of Deinonychus and Tenontosaurus, two dinosaur genera also found in the Cloverly Formation, which has...
dinosaurs that are also known from the Cloverly Formation, Deinonychus and Tenontosaurus. Indeterminate frog remains. Possible indeterminate salamander remains...
ornithopod Tenontosaurus. Because the line of dinosaurs that includes Allosaurus and Tyrannosaurus diverged from the line that led to Tenontosaurus very early...
similar size to more basal Tenontosaurus which has slow growth, so either faster growth is caused by body size or Tenontosaurus is the maximum size of an...
Rhabdodontidae. A 2022 phylogenetic analysis recovered Muttaburrasaurus and Tenontosaurus as basal rhabdodontomorphs and found them to likely represent sister...
(Pleurocoelus) and the most common dinosaur in this region, the ornithopod Tenontosaurus. Other vertebrates present during this time included the amphibian Albanerpeton...
Deinonychus has also been found in association with the large ornithopod Tenontosaurus, which has been cited as evidence of cooperative (pack) hunting. However...
Z. shqiperorum continued the general size trend from Orodromeus to Tenontosaurus, while Z. robustus may have had slight nanism. Zalmoxes had a relatively...
Animals recovered include the dinosaurs Deinonychus, Microvenator, Tenontosaurus, Zephyrosaurus and Sauropelta as well as fragmentary remains of Titanosaurs...
described in 2023, is interpreted as a transitional taxon between Tenontosaurus and Rhabdodontidae. Dieudonné, Paul-Emile; Tortosa, Thierry; Fernández-Baldor...
Hypsilophodon was recovered as the sister taxon to the clade containing Tenontosaurus and Rhabdodontidae. In 2017, Daniel Madzia, Clint Boyd, and Martin Mazuch...
Acrocanthosaurus, the sauropod Sauroposeidon, as well as the ornithopods Tenontosaurus and Convolosaurus. It is the lowermost unit of the lower Cretaceous...
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