_Pycnodus_.
_Pyrula_.
_Quadrumana_, of the Eocene; of the Miocene; of the
Pliocene; of the Post-Pliocene.
Quadrupeds (_see_ Mammalia).
Quaternary period.
Quebec Group.
_Quercus_.
Rabbits.
_Rana_.
_Raptores_.
_Rasores_.
Recent period.
_Reptaculites_.
Red clays, origin of.
Red Coral.
Red Crag.
Red Deer.
Reindeer.
_Remopleurides_.
Reptiles; of the Permian; of the Trias; of the Jurassic; of
the Cretaceous; of the Eocene.
_Retepora; Ehrenbergi; Phillipsi_.
_Retiolites_.
_Retzia_.
_Rhaetic Beds_.
_Rhamphorhynchus; Bucklandi_.
_Rhinoceridoe_.
_Rhinoceros Etruscus; leptorhinus; megarhinus; tichorhinus_.
_Rhinopora verrucosa_.
_Rhizodus_.
_Rhombus minimus_.
Rhyncholites.
_Rhynchonella; cuneata; neglecta; pleurodon; varians.
_Rhynchosaurus; articeps.
Rice-shells.
Richmond Earth.
Ringed Worms (_see_ Annelida).
River-gravels, high-level and low-level.
_Robulina_.
Rocks, definition of; divisions of; igneous; aqueous;
mechanically-formed; chemically-formed; organically-formed;
arenaceous; argillaceous; calcareous; siliceous.
_Rodentia_, of the Eocene; of the Miocene; of the
Post-Pliocene.
Roebuck.
_Rostellaria_.
_Rotalia; Boueana_.
Rugose Corals; of the Lower Silurian; of the Upper Silurian;
of the Devonian; of the Carboniferous; of the Permian; of
the Upper Greensand.
Rupelian Clay.
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