tus_.
Polir-schiefer.
_Polycystina_; of Barbadoes-earth.
_Polypora; dendroides_.
_Polypterus_.
_Polystomella_.
_Polytremacis_.
_Polyzoa_, of the Cambrian; of the Lower Silurian; of the
Upper Silurian; of the Devonian; of the Carboniferous; of the
Permian; of the Trias; of the Cretaceous; of the Miocene.
_Populus_.
_Porcellia_.
Porcupines.
Portage Group.
Port-Jackson Shark.
Portland beds.
Post-Glacial deposits.
Post-Pliocene period.
Post-Tertiary period.
_Poteriocrinus_.
Potsdam Sandstone.
Pre-Glacial deposits.
_Prestwichia; rotundata_.
_Primitia; strangulata_.
Primordial Trilobites.
Primordial zone.
_Proboscidea_, of the Miocene; of the Pliocene; of the
Post-Pliocene.
_Producta; horrida; longispina; semireticulata_.
_Productella_.
_Productidoe_.
_Proetus_.
Prong-buck.
_Protaster; Sedgwickii_.
_Proteaceoe_.
_Proteus_.
_Protichnites_.
_Protocystites_.
_Protornis Glarisiensis_.
_Protorosaurus; Speneri_.
_Protospongia; fenestrata_.
_Prototaxites; Logani_.
_Psammobia_.
_Psammodus_.
_Psaronius_.
_Pseudocrinus bifasciatus_.
_Psilophyton; princeps_.
_Pteranodon; longiceps_.
_Pteraspis; Banksii_.
_Pterichthys; cornutus_.
_Pterinoea; subfalcata_.
_Pteroceras_.
_Pterodactylus; crassirostris_.
_Pterophyllum; Joegeri_.
_Pteropoda_, of the Cambrian; of the Lower Silurian; of
the Upper Silurian; of the Devonian; of the Carboniferous;
of the Permian; of the Jurassic.
_Pterosauria_; of the Jurassic; of the Cretaceous.
_Pterygotus Anglicus_.
_Ptilodictya; acuta; falciformis; raripora; Schafferi_.
_Ptychoceras; Emericianum_.
_Ptychodus_.
_Pupa vetusta_.
Purbeck Beds; Mammals of.
_Puryuroidea_.
_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.