Travel back in time and imagine the challenges and wonders of living in the Paleozoic Era. Trump makes entrance to UFC 314 I Asked 2 Experts To Name the Best Store-Bought Flour Tortillas—They ...

Scientists discovered a 480-million-year-old phosphatic sponge in South China, making it the oldest known stromatoporoid and ...

After Keppie (2000). The Appalachian orogen of North America is divisible with some controversy into five tectonolithologic zones which range in age from Late Precambrian through the Early Paleozoic ...

Lake Champlain's Isle La Motte is rich in marine fossils, some of which are 450 million years old. Robert Lyons Nelson Fisk, who was Vermont's lieutenant governor from 1896 to 1898, was also the ...

The Environment of Vertebrate Life in the Late Paleozoic in North America: A Paleogeographic Study. By Prof. E. C. Case. (Publication No. 283.) Pp. vi + 273. (Washington: Carnegie Institution of ...