Describer

Marsh, 1889

Time

Jurassic Late Kimmeridgian Tithonian

Classification

Saurischia Sauropodomorpha Sauropoda Cetiosauridae Cetiosaurinae

Diet

Herbivore

Fossilsite

Canyon City Quarry near Garden Park, Morrison Formation, Colorado, US

Fall Under

Haplocanthosaurus priscus

Length

22 meter

Info

Haplocanthosaurus priscus (Hatcher, 1903) = Haplocanthus priscus (Hatcher, 1903 name preoccupied) >> Haplocanthosaurus utterbacki (Hatcher, 1903)

Haplocanthosaurus priscus > Haplocanthosaurus delfsi (McIntosh & Williams, 1988) >> Morosaurus agilis NN (Marsh, 1889)

Cranium, 3 cervicals.

Morosaurus agilis, is based on an articulated cranium, proatlas, and cervicals 1 to 3 The axis has a small but distinct intercentrum fused to the rostral end of the (true) centrum (Gilmore, 1907). Cervical 3 is elongate, and its spine is directed rostrodorsally.

Collected by M.P. Felch in 1883. The original description was by Marsh in the American Journal of Science, volume 37, page 334, in 1889.