Amphicoelias (Amphicoelias)

- the type of sauropod proba bly belonging to the family diplodokĂłw (Diplodocidae). Its name is made up of Greek words: amplitude - on both sides and koilos - concave, and - means Double-Concave. One of his species - A. fra gillimus - could be the biggest animal of all time. Its size is given in different ways, usually fall in the 40-60 m in length with a mass 122 t, but the species is known from a single incomplete circle, who disappeared in the Appendix.