### Duration of Ammonites and Belemnites. === Ages of Cycads and Pines. --- Beginning of Age of Angiospermous Exogens. +++ "And God created great reptiles, and every living moving thing which the waters brought forth abundantly, and every flying creature after its kind." Time. Ages. Periods. Animals and Plants. MESOZOIC. Cretaceous {Newer.{Maestricht beds; Fox Hill # - + { {and Pierre Groups of # - + { {Western America; Greensand # - + { {of New Jersey. # - + { # - + {Middle.{Chalk; Benton and Dakota # Close of - + { {Groups of Western America. # Reptilian - + { # Ages. - + {Older.{Lower Greensand and Gault; # - + { {Lower Clays of New Jersey # + { {and Alabama. # + # + Upper {N. Purbeck Beds. }Jurassic # Culmination + Jurassic {M. Portland Limestone. } Beds of # of + {O. Portland Sandstone. }Nebraska # Reptilian + } and # Ages. + Middle {N. Kimmeridge Clay, etc.}Colorado.# = + Jurassic {M. Coralline Limestone. } # = + {O. Calcareous Grit & } # = + { Oxford Clay. } # = + # = + Lower {N. Cornbrash & Forest } Lower # = + Jurassic { Marble. }Jurassic # = + {M. Great & Inferior } of # = + { Oolites., etc. } Utah, # = + {O. Lias Clay and }Nevada, # = + { Limestone. } etc. = + = + {N. Keuper {Upper Triassic Appearance of = + { Sandstone, {Sandstones of Mammals = + { etc. {Prince Edward I., and = + {M. Muschelkalk.{Connecticut, etc. Birds. + Triassic { + {O. Bunter {Lower Triassic Beginning of + { Sandstone. {Sandstones of Reptilian + { {Prince Edward I., Ages. + { {Connecticut, etc.