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Description
FORGOTTEN GIANTS: species #2 - Argentinosaurus huinculensis
*NEWLY UPDATED with more robust limbs, bigger chest, and more accurate femur width and limb spacing*
**Dorsal vertebrae COMPLETELY REVISED based directly on the 1993 description paper, with a new posterior view of the third dorsal**
***Femur and fibula COMPLETELY REVISED after intensive study of the description and Mazzetta (2004)***
***Black flash skeletal added. (Thanks Amin for the suggestion.)***
Location: Plaza Huincul, Argentina
Time: Cenomanian epoch (beginning of the Late Cretaceous)
Length: 110ft. (33m)
Probable mass: 80 tons
This not-so-forgotten giant is currently considered by most people to be the "biggest" dinosaur (though there are as many as ten contenders for that title, including something potentially longer and a LOT wider: fav.me/d3lfqci).
Argentinosaurus is a basal titanosaurian sauropod (currently classed in the dubious family Andesauridae, though it may not belong there), and probably reached a length of 110 ft (33m). It's known from two specimens - one consisting of some enormous dorsal and hip material plus a fibula (NOT a tibia as Bonaparte and Coria originally claimed in 1993), and the other being a femur shaft that's missing both ends. Its neck and tail are totally unknown, but based on related basal titanosaurs, it's likely that both were pretty long.
Argentinosaurus had a very long torso. Here I have restored it with 11 dorsal vertebrae (the standard count for most macronarians, including some titanosaurs). However it may have had 12 like some other basal titanosaurs, making its belly even longer.
References:
- Bonaparte, J.; Coria, R. (1993). A new and gigantic titanosaurian sauropod from the Rio Limay Formation (Albian-Cenomanian) of Neuquen Province, Argentina. Ameghiniana 30 (3): 271–282
- Carpenter, Kenneth (2006). Biggest of the Big: A Critical Re-Evaluation of the Mega-Sauropod Amphicoelias fragillimus, Cope, 1878. In Foster, John R.; Lucas, Spencer G.. and Geology of the Upper Jurassic Morrison Formation. 36. New Mexico Museum of Natural History and Science Bulletin. pp. 131–138.
- Mazzetta, Gerardo V.; Christiansen, Per; Fariña, Richard A. (2004). Giants and Bizarres: Body Size of Some Southern South American Cretaceous Dinosaurs (PDF). Historical Biology 65: 1–13. www.miketaylor.org.uk/tmp/pape…
*NEWLY UPDATED with more robust limbs, bigger chest, and more accurate femur width and limb spacing*
**Dorsal vertebrae COMPLETELY REVISED based directly on the 1993 description paper, with a new posterior view of the third dorsal**
***Femur and fibula COMPLETELY REVISED after intensive study of the description and Mazzetta (2004)***
***Black flash skeletal added. (Thanks Amin for the suggestion.)***
Location: Plaza Huincul, Argentina
Time: Cenomanian epoch (beginning of the Late Cretaceous)
Length: 110ft. (33m)
Probable mass: 80 tons
This not-so-forgotten giant is currently considered by most people to be the "biggest" dinosaur (though there are as many as ten contenders for that title, including something potentially longer and a LOT wider: fav.me/d3lfqci).
Argentinosaurus is a basal titanosaurian sauropod (currently classed in the dubious family Andesauridae, though it may not belong there), and probably reached a length of 110 ft (33m). It's known from two specimens - one consisting of some enormous dorsal and hip material plus a fibula (NOT a tibia as Bonaparte and Coria originally claimed in 1993), and the other being a femur shaft that's missing both ends. Its neck and tail are totally unknown, but based on related basal titanosaurs, it's likely that both were pretty long.
Argentinosaurus had a very long torso. Here I have restored it with 11 dorsal vertebrae (the standard count for most macronarians, including some titanosaurs). However it may have had 12 like some other basal titanosaurs, making its belly even longer.
References:
- Bonaparte, J.; Coria, R. (1993). A new and gigantic titanosaurian sauropod from the Rio Limay Formation (Albian-Cenomanian) of Neuquen Province, Argentina. Ameghiniana 30 (3): 271–282
- Carpenter, Kenneth (2006). Biggest of the Big: A Critical Re-Evaluation of the Mega-Sauropod Amphicoelias fragillimus, Cope, 1878. In Foster, John R.; Lucas, Spencer G.. and Geology of the Upper Jurassic Morrison Formation. 36. New Mexico Museum of Natural History and Science Bulletin. pp. 131–138.
- Mazzetta, Gerardo V.; Christiansen, Per; Fariña, Richard A. (2004). Giants and Bizarres: Body Size of Some Southern South American Cretaceous Dinosaurs (PDF). Historical Biology 65: 1–13. www.miketaylor.org.uk/tmp/pape…
Image size
4872x3532px 2.24 MB
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