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Apatosaurus was a large, long-necked, quadrupedal animal with a long, whip-like tail. Its forelimbs were slightly shorter than its hindlimbs. Most size estimates are based on specimen CM 3018, the type specimen of A. louisae, reaching 21–23 m (69–75 ft) in length and 16.4–22.4 t (16.1–22.0 long tons; 18.1–24.7 short tons) in body mass.
Apatosaurinae (the name deriving from the type genus Apatosaurus, meaning "deceptive lizard") is a subfamily of diplodocid sauropods, an extinct group of large, quadrupedal dinosaurs, the other subfamily in Diplodocidae being Diplodocinae. Apatosaurines are distinguished by their more robust, stocky builds and shorter necks proportionally to ...
Its great size may have been a deterrent to the ... More distantly related is the contemporaneous Apatosaurus, ... Finds of sauropod footprints in the 1930s ...
In 2020 Molina-Perez and Larramendi estimated the size of the animal at 31 meters (102 ft) and 72 tonnes (79.4 short tons) based on the 1.75 meter (5.7 ft) long footprint. [ 23 ] Limbs and feet
Hell Creek formation. Largest known Triceratops skeleton; 60% complete with a skull that is 75% complete. [18][19] Sold for €6.6 million (US$7.7 million) on 21 October 2021 [19][20] Bill. BDM. Badlands Dinosaur Museum. Triceratops. Late Cretaceous (Maastrichtian, 68-66 million years ago) Hell Creek Formation, MT.
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Welles, 1954. Dilophosaurus (/ daɪˌloʊfəˈsɔːrəs, - foʊ -/ [1] dy-LOH-fə-SOR-əs, -foh-) is a genus of theropod dinosaurs that lived in what is now North America during the Early Jurassic, about 186 million years ago. Three skeletons were discovered in northern Arizona in 1940, and the two best preserved were collected in 1942.
Iguanodon (/ ɪ ˈ ɡ w ɑː n ə d ɒ n / i-GWAH-nə-don; meaning 'iguana-tooth'), named in 1825, is a genus of iguanodontian dinosaur.While many species found worldwide have been classified in the genus Iguanodon, dating from the Late Jurassic to Early Cretaceous, taxonomic revision in the early 21st century has defined Iguanodon to be based on one well-substantiated species: I ...