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Fun facts
Chubutisaurus lived about 100 to 98 million years ago, during the Cretaceous Period.1
Its fossils were first found in 1961 by a farmer named Mr. Martinez near El Escorial village.1
The first fossils were collected using dynamite, which is a very explosive way to dig up dinosaurs!1
Chubutisaurus had a stronger arm bone (radius) than its relative Venenosaurus.1
It shared its home with other dinosaurs like the huge titanosaur Patagotitan and the meat-eater Tyrannotitan.1
Most asked questions about Chubutisaurus
?How big was Chubutisaurus?
Estimates vary: Gregory S. Paul gave a length of 18 metres (59 ft) and a weight of 12 tonnes (13 short tons), while Thomas Holtz estimated 23 metres (75 ft). The Natural History Museum lists 23 metres.12
?What did Chubutisaurus eat?
It was a herbivore, eating plants. The Natural History Museum lists its diet as herbivorous.2
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For dino experts
- Scientific name
- Chubutisaurus
- Named by
- del Corro 19754
- Group
- Long-necks
- Family / clade
- Somphospondyli4
- Classification
- Sauropodomorpha > Sauropoda > Macronaria4
- Age of the rocks
- 120 to 110 million years (Aptian / Albian)4
- Rock formations
- Cerro Barcino4
- Countries
- Argentina4
- Fossil records
- 2 in the Paleobiology Database4
- Discovery
- Chubutisaurus was named by paleontologist Guillermo del Corro in 1975. The fossils were first found in 1961 by a farmer, and del Corro collected them with dynamite in 1965.1
- Still debated
- Scientists are not sure exactly how big Chubutisaurus was. Some estimate it at 18 metres long, others at 23 metres.1
Where the facts come from
- Chubutisaurus (en.wikipedia.org)
- Chubutisaurus | Natural History Museum (nhm.ac.uk)
- In the month of February of 1965, an excursion was carried out to the province of Chubut, with the objective of extracting dinosaur bones, announced to this Museum by the Ing. Agronomer Julio Fernandez Duque, who in that moment worked in I.N.T.A. of Trelew. In the first of their trips, near the area of Mirasol, approximately 300 kilometers in a straight line from Trelew (toward the interior of the province) and in the area of Cerro Barcino or Cerro Winches (on the maps) they discovered the weathered bones of these large reptiles. The weathered bones and the portion of those that outcrop in situ, were located by a rancher of the area, of the name Martínez, around the year 1961. This information was obtained then (1965) by means of Martínez’s widow. The extraction of a large quantity of material took us some 30 days of continuous work, and even included the use of dynamite, given the grade of hardness of the rock, that is a tuff and whose a diagnosis of the rock is as follows: "Macroscopic description: rock jagged with ashy aspect and clear gray greenish color. Possesses irregular fractures and earthy appearance. In the middle of the abundant (naturalhistory.si.edu)
- Chubutisaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
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