Describer

Marsh, 1882 / Barkas,1870

Time

Jurassic Early Pliensbachian Toarcian

Classification

Saurischia Sauropodomorpha Prosauropoda Anchisauridae

Diet

Herbivore

Fossilsite

Upper Portland Formation, Newark Supergroup, Connecticut, US

Fall Under

Anchisaurus

Length

2,4 meter

Info

Genus

Anchisaurus (Marsh, 1885) = Megadactylus (Hitchcock, 1865) = Amphisaurus (Marsh, 1882) = Yaleosaurus (Huene, 1932)

Anchisaurus (Marsh, 1885) > Anchisaurus polyzelus (Hitchcock, 1865) = Megadactylus polyzelus (Hitchcock, 1865) > Anchisaurus colurus (Marsh, 1891) > Yaleosaurus colurus (Huene, 1932)

Supposed affinities to both the primitive Palaeosaurus and later dinosaurs, as discussed by Cope (1870) and others. (To replace preoccupied Megadactylus Hitchcock; preoccupied by Amphisaurus Barkas,1870)