Dinosauria
Saurischia
Sauropodomorpha
Sauropoda
Eusauropoda
Diplodocoidea
Flagellicaudata
Diplodocidae
Pronunciation: DIP-luh-DOH-kuh-day
Author: O.C. Marsh
Year: 1884
Meaning: Double beams (see etymology)
Locomotion: Quadrupedal (four legs)
Synonyms: Atlantosauridae (Marsh, 1877), Amphicoeliidae (E.D. Cope, 1878), Dystrophaeidae (von Huene, 1904), Apatosauridae (von Huene, 1927)
Author: O.C. Marsh
Year: 1884
Meaning: Double beams (see etymology)
Locomotion: Quadrupedal (four legs)
Synonyms: Atlantosauridae (Marsh, 1877), Amphicoeliidae (E.D. Cope, 1878), Dystrophaeidae (von Huene, 1904), Apatosauridae (von Huene, 1927)
Definition
All diplodocoids more closely related to Diplodocus longus than Dicraeosaurus hansemanni.
About
Click here to view Dinochecker's A-Z list of Diplodocids.
Etymology
Diplodocidae is derived from the Greek "diploos" (double), "dokos" (beam), and "-idae" (family), in reference to the double-beamed bones (chevrons) on the underside of their tail vertebrae, and their close relationship to Diplodocus.
Relationships
References
• Myhrvold N and Currie PJ (1997) "Supersonic sauropods? Tail dynamics in the diplodocids". Paleobiology, 23(4): 393-409. DOI: 10.1017/S0094837300019801.
• Carpenter K and Tidswell V (2005) "Thunder Lizards: The Sauropodomorph Dinosaurs".
• Whitlock JA (2011) "Inferences of Diplodocoid (Sauropoda: Dinosauria) Feeding Behavior from Snout Shape and Microwear Analyses". 
PLoS ONE 6(4): e18304. DOI: 10.1371/journal.pone.0018304.
• Baron MG (2021) "Tactile tails: a new hypothesis for the function of the elongate tails of diplodocid sauropods". Historical Biology, 33(10): 2057–2066. DOI: 10.1080/08912963.2020.1769092.
• Conti S, Tschopp E, Mateus O, Zanoni A, Masarati P and Sala G (2022)
"Multibody analysis and soft tissue strength refute supersonic dinosaur tail". Scientific Reports, 12: 19245
DOI: 10.1038/s41598-022-21633-2.
• Gallina PA, Apesteguía S, Carballido JL and Garderes JP (2022) "Southernmost Spiny Backs and Whiplash Tails: Flagellicaudatans from South America". Page 209–236 in Otero, Carballido and Pol (eds.) "South American Sauropodomorph Dinosaurs: Record, Diversity and Evolution".
PLoS ONE 6(4): e18304. DOI: 10.1371/journal.pone.0018304.
• Baron MG (2021) "Tactile tails: a new hypothesis for the function of the elongate tails of diplodocid sauropods". Historical Biology, 33(10): 2057–2066. DOI: 10.1080/08912963.2020.1769092.
• Conti S, Tschopp E, Mateus O, Zanoni A, Masarati P and Sala G (2022)
"Multibody analysis and soft tissue strength refute supersonic dinosaur tail". Scientific Reports, 12: 19245
DOI: 10.1038/s41598-022-21633-2.
• Gallina PA, Apesteguía S, Carballido JL and Garderes JP (2022) "Southernmost Spiny Backs and Whiplash Tails: Flagellicaudatans from South America". Page 209–236 in Otero, Carballido and Pol (eds.) "South American Sauropodomorph Dinosaurs: Record, Diversity and Evolution".
