Tonganosaurus
Tonganosaurus was a long-necked plant-eater that lived about 184 million years ago. It is one of the oldest known members of the mamenchisaurid family, which includes some of the longest-necked dinosaurs ever.12
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Tonganosaurus had a very long neck for its size, with neck bones shaped like those of Omeisaurus, another long-necked dinosaur.1
Its front legs were 80 percent as long as its back legs, which is a sign it was a more advanced sauropod.2
The thigh bone (femur) was straight and thick, and the shin bone (tibia) was 75 percent of its length.1
It lived in the Early Jurassic, about 184.5 million years ago, making it the oldest known mamenchisaurid by almost 15 million years.1
The only skeleton found was of an adult that was about 12 metres long, the length of a big bus.1
Its backbones (vertebrae) were solid and not hollow, which is a more primitive feature among sauropods.2
The fossils were discovered in 2007 by scientists from Chengdu University of Technology, after tips from local people.1

Eri abakugu mu dayinoso
- Erinnya lya ssaayansi
- Tonganosaurus
- Yatuumibwa
- Li et al. 20103
- Ekibinja
- Ez'ensingo empanvu
- Ekika / ekibinja
- Mamenchisauridae3
- Engabanya
- Sauropodomorpha > Sauropoda3
- Emyaka gy'enjazi
- emyaka obukadde 201 okutuuka ku 175 (Hettangian / Toarcian)3
- Ensengeka z'enjazi
- Yimen3
- Ensi
- Cayina3
- Ebisigalira ebyazuulibwa
- 1 mu The Paleobiology Database3
- Okuzuulibwa
- Tonganosaurus was named by Li Kui, Yang Chun-Yan, Liu Jian, and Wang Zheng-Xin in 2010. The species name hei honors dinosaur scientist He Xinlu. The fossils were found in the Yimen Formation of Sichuan, China.12
- Kikyakubaganyizibwako ebirowoozo
- Scientists are still debating the exact age of the Yimen Formation, so the precise date of Tonganosaurus is not fully settled.1
Ebituufu gye biva
- Tonganosaurus (en.wikipedia.org)
- A NEW SAUROPOD FROM THE LOWER JURASSIC OF HUILI, SICHUAN, CHINA (vertpala.ac.cn)
- Tonganosaurus in The Paleobiology Database (CC BY 4.0): emyaka, ebifo, ensengeka z'enjazi, engabanya.
Buli kituufu ku lupapula luno kirina ennamba eraga ensibuko yaakyo. Bwe tuba nga tukoze ensobi, tusonyiwe, ffe tuli bawagizi ba dayinoso, so si magazini ya ssaayansi. Tubuulire ku [email protected] tujja kugitereeza.
Rex alumwa enjala! Dino Wiki pulojekiti ya taata eri mutabani we ayagala ennyo dayinoso, ya bwereere, tewali bulango era tewali bikulondoola. Abakulu basobola okuwa Rex akantu ak'okulya okuyamba okugikuuma ku mutimbagano.Liisa Rex