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Holtz and others noted similarities in the teeth of troodontids and iguanine lizards and suggested that the former family may not have been strict carnivores. [4] Holtz found that troodontids were the sister group to the ornithomimosaurs. [2] Catherine Forster and others found that troodontids were the sister group of the avialans. [2]
Troodontidae / t r oʊ. ə ˈ d ɒ n t ɪ d iː / is a clade of bird-like theropod dinosaurs from the Late Jurassic to Late Cretaceous. During most of the 20th century, troodontid fossils were few and incomplete and they have therefore been allied, at various times, with many dinosaurian lineages.
Troodon (/ ˈ t r oʊ. ə d ɒ n / TROH-ə-don; Troödon in older sources) is a former wastebasket taxon and a potentially dubious genus of relatively small, bird-like theropod dinosaurs definitively known from the Campanian age of the Late Cretaceous period (about 77 mya).
While Pectinodon is only known from teeth, its larger family Troodontidae is known from much more complete specimens. They were small, bird-like feathered bipedal maniraptorans with proportionally large eyes and brains. Like dromaeosaurids, they possessed a "sickle-claw" on the second toe of each foot. See the Troodontidae article for more ...
The following table and map show the areas in Ireland, previously designated as Cities, Boroughs, or Towns in the Local Government Act 2001. Under the Local Government (Ireland) Act 1898, Ireland had a two-tier system of local authorities. The first tier consisted of administrative counties and county boroughs.
All troodontids have many unique features of the skull, such as closely spaced teeth in the lower jaw, and large numbers of teeth. Troodontids have sickle-claws and raptorial hands, and some of the highest non-avian encephalization quotients, meaning they were behaviourally advanced and had keen senses. [15] Saurornithoides was a rather small ...
All troodontids have many unique features of the skull, such as closely spaced teeth in the lower jaw, and large numbers of teeth. Troodontids have sickle-claws and raptorial hands , and some of the highest non- avian encephalization quotients , meaning they were behaviourally advanced and had keen senses. [ 2 ]
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