Some of these were famous and you'll know it straight away!
- Brachiosaurus altithorax 25-26 metres long, 50-60 tons
2. Maraapunisaurus fragillimus (for those that don't know, this is Amphicoelias fragillimus) 30.3-32 metres long, ?tons
3. Barosaurus lentus 26 metres long, 20 tons
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Barosaurus_lentus1.jpg/220px-Barosaurus_lentus1.jpg)
4. Apatosaurus louisae/ajax 21-23 metres long, 32.7-72 tons
![](http://upload.wikimedia.org/wikipedia/commons/thumb/4/44/Apatosaurus_louisae_by_durbed.jpg/220px-Apatosaurus_louisae_by_durbed.jpg)
5. Seismosaurus (Diplodocus hallorum) 35-40 metres long, ?tons
6. Giraffatitan brancai 22.46 metres long, 31.5 tons
7. Mamenchisaurus sinocanadorum 35 metres long, 75 tons
8. Diplodocus longus/carnegii 27 metres long, 16 tons
9. Lusotitan atalaiensis 25 metres long, ?tons
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Lusotitan_humerus.png/220px-Lusotitan_humerus.png)
10. Camarasaurus supremus 23 metres long, 47 tons