[N] 2003 Theropod remains from the Santana Formation
20030416
Scientist described theropod remains, a sequence of sacral and caudal vertebrae (MN 4743-V), from the Romualdo member, Santana Formation (Aptian-Albian) in Northwestern Brazil. From this area three species have been described: the spinosaurids Irritator challengeri, and Angaturama limai (both based on cranial material), and the tyrannoraptoran Santanaraptor placidus (posterior portion of a skeleton). Other specimens are an unnamed sacrum with fragments of a right ilium (SMNS 58203), an incomplete posterior region of a small coelurosaurian skeleton (SMNK 2349 PAL), and a large pelvis with elements of the vertebral column and limbs (MN 4802-V).