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- W4310342506 abstract "A predominantly fish-eating diet was envisioned for the sail-backed theropod dinosaur Spinosaurus aegyptiacus when its elongate jaws with subconical teeth were unearthed a century ago in Egypt. Recent discovery of the high-spined tail of that skeleton, however, led to a bolder conjecture that S. aegyptiacus was the first fully aquatic dinosaur. The 'aquatic hypothesis' posits that S. aegyptiacus was a slow quadruped on land but a capable pursuit predator in coastal waters, powered by an expanded tail. We test these functional claims with skeletal and flesh models of S. aegyptiacus. We assembled a CT-based skeletal reconstruction based on the fossils, to which we added internal air and muscle to create a posable flesh model. That model shows that on land S. aegyptiacus was bipedal and in deep water was an unstable, slow-surface swimmer (<1 m/s) too buoyant to dive. Living reptiles with similar spine-supported sails over trunk and tail are used for display rather than aquatic propulsion, and nearly all extant secondary swimmers have reduced limbs and fleshy tail flukes. New fossils also show that Spinosaurus ranged far inland. Two stages are clarified in the evolution of Spinosaurus, which is best understood as a semiaquatic bipedal ambush piscivore that frequented the margins of coastal and inland waterways." @default.
- W4310342506 created "2022-12-09" @default.
- W4310342506 creator A5002205898 @default.
- W4310342506 creator A5006682508 @default.
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- W4310342506 creator A5021267438 @default.
- W4310342506 creator A5024268349 @default.
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- W4310342506 creator A5054206567 @default.
- W4310342506 creator A5071302738 @default.
- W4310342506 creator A5085823889 @default.
- W4310342506 date "2022-11-30" @default.
- W4310342506 modified "2023-10-10" @default.
- W4310342506 title "Spinosaurus is not an aquatic dinosaur" @default.
- W4310342506 cites W1460424148 @default.
- W4310342506 cites W1547163188 @default.
- W4310342506 cites W1835408683 @default.
- W4310342506 cites W1969596295 @default.
- W4310342506 cites W1971498016 @default.
- W4310342506 cites W1973201036 @default.
- W4310342506 cites W1984834887 @default.
- W4310342506 cites W1987837637 @default.
- W4310342506 cites W1988264256 @default.
- W4310342506 cites W1992367378 @default.
- W4310342506 cites W1992374136 @default.
- W4310342506 cites W1997353268 @default.
- W4310342506 cites W1999248288 @default.
- W4310342506 cites W2000488202 @default.
- W4310342506 cites W2000876081 @default.
- W4310342506 cites W2012634580 @default.
- W4310342506 cites W2020048305 @default.
- W4310342506 cites W2022372046 @default.
- W4310342506 cites W2033332407 @default.
- W4310342506 cites W2036305293 @default.
- W4310342506 cites W2052700727 @default.
- W4310342506 cites W2053639015 @default.
- W4310342506 cites W2064656843 @default.
- W4310342506 cites W2065401643 @default.
- W4310342506 cites W2070439586 @default.
- W4310342506 cites W2071617171 @default.
- W4310342506 cites W2076004750 @default.
- W4310342506 cites W2076505303 @default.
- W4310342506 cites W2091933212 @default.
- W4310342506 cites W2101995809 @default.
- W4310342506 cites W2106045912 @default.
- W4310342506 cites W2117444720 @default.
- W4310342506 cites W2118446958 @default.
- W4310342506 cites W2118494082 @default.
- W4310342506 cites W2120321823 @default.
- W4310342506 cites W2122593932 @default.
- W4310342506 cites W2124583084 @default.
- W4310342506 cites W2138498181 @default.
- W4310342506 cites W2139644929 @default.
- W4310342506 cites W2143466974 @default.
- W4310342506 cites W2147430216 @default.
- W4310342506 cites W2148668827 @default.
- W4310342506 cites W2150523726 @default.
- W4310342506 cites W2151692850 @default.
- W4310342506 cites W2156801490 @default.
- W4310342506 cites W2161814413 @default.
- W4310342506 cites W2166061105 @default.
- W4310342506 cites W2172125285 @default.
- W4310342506 cites W2172271163 @default.
- W4310342506 cites W2173811531 @default.
- W4310342506 cites W2175380529 @default.
- W4310342506 cites W2176447534 @default.
- W4310342506 cites W2176826320 @default.
- W4310342506 cites W2180082642 @default.
- W4310342506 cites W2211036607 @default.
- W4310342506 cites W2213671364 @default.
- W4310342506 cites W2317600034 @default.
- W4310342506 cites W2324488492 @default.
- W4310342506 cites W2512421128 @default.
- W4310342506 cites W2528132339 @default.
- W4310342506 cites W2560776993 @default.
- W4310342506 cites W2735651373 @default.
- W4310342506 cites W2767904188 @default.
- W4310342506 cites W2801069306 @default.
- W4310342506 cites W2883587102 @default.
- W4310342506 cites W2884823252 @default.
- W4310342506 cites W2886983021 @default.
- W4310342506 cites W2923179920 @default.
- W4310342506 cites W2967982778 @default.
- W4310342506 cites W2969423814 @default.
- W4310342506 cites W2990450459 @default.
- W4310342506 cites W3006407992 @default.
- W4310342506 cites W3016986667 @default.
- W4310342506 cites W3019720657 @default.
- W4310342506 cites W3023060762 @default.
- W4310342506 cites W3026171011 @default.
- W4310342506 cites W3029650694 @default.
- W4310342506 cites W3119428203 @default.
- W4310342506 cites W3122841557 @default.
- W4310342506 cites W3126756492 @default.
- W4310342506 cites W3152758272 @default.
- W4310342506 cites W3157544694 @default.
- W4310342506 cites W3197611735 @default.
- W4310342506 cites W3203271713 @default.
- W4310342506 cites W4210723737 @default.
- W4310342506 cites W4220981938 @default.