Title: The Arroyo Formation (Leonardian, Lower Permian) and its vertebrate fossils
First published: 1989
Subjects: Fossil Vertebrates, Paleontology, Vertebrates, Fossil
Places: Arroyo Formation (Tex.), Texas
Time periods: Permian
LC classification: QH105.T4 T48a no. 35, QE841 T48a no. 35