A scotoma is a strange name for a common problem. A scotoma, pleural is scotomata, is an area of diminished or absent vision that is surrounded by an area of normal or near normal vision.It comes from the Greek work for darkness. scotoma is a strange name for a common problem. A scotoma, pleural is scotomata, is an area of diminished or absent vision that is surrounded by an area of normal or near normal vision. It comes from the Greek work for darkness.
Spinosaurus (meaning spine lizard) is a genus of theropod dinosaur that lived in what now is North Africa, during the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago.
[The turn-of-the-century Spinosaurus. Todayâs Sciencexpress paper suggests that the dinosaur was even more aquatic.] The core of the new study, led by University of Chicago paleontologist Nizar Ibrahim, is a partial skeleton of Spinosaurus found in the 97 million year old rock of Morocco. The importance of the new specimen is in revealing parts of Spinosaurus never seen before.