xn 



LIST OF ILLUSTRATIONS. 



FIG. 

 104. 



105. 



io6. 



107. 

 108. 

 109. 

 no. 

 in. 

 112. 



"3. 

 114. 



116. 



117. 

 118. 

 119. 

 1 20. 

 121. 



122. 



123. 

 124. 



125. 

 126. 



127. 

 128. 

 129. 



130. 



131- 

 132. 



^33- 



134- 



135. 

 136. 



137. 

 138. 

 139. 



a, lltcd sliield of an Upper Silurian Fish {Cyathaspis) ; b, Spine 



of a Silurian Shark {Onchus tenui-striafus, Agasp.) ; r. 



Scales of Thelodus ' [ 



Cephala^pis Dawsoni (Lankester) • . . . . 



Devonian Placoganoid Fishes {Pierichihys fornnfus, Cephal- 



aspis LyelH) 



Devonian Lepidoganoid Fi-hes {Difacanthus and Osleolepis) 

 Modern Dipnoi {Cera,odus Fvst,ri anJ Lepidodren annectus) 

 Anterior part of the palate of Dipterus 

 Dental plate of C<7«r/5<7tf'«j//jVa/«j (Dn.) . . * 

 Dental plate cf Ceratodtis Barrandii . ... 



Dental plate of Ceratodtis sirratus 



Jaws of Dinichthys Hertzeri (Newberry) 



Low&c ]a.\y oi Dinichthys Hcrt!:en 



Jaws of Lepidosiren ....... 



A sn«all Carboniferous Ganoid {Palaoniscns {Rhadinichthys 



Modttius, Dn.) 



Teeth and Spines of Carboniferous Sharks . . '. 

 Teeth of Cretaceous Sharks {Otodus anA PtycJiodus) 

 Tooth of a Tertiary Shark {Carcharodon) . 



A Liassic Ganoid (Dapedius) 



Cretaceous Fishes of the modern or Telecstian type {Bery'x 



Le7vesiensis and Portheus molossus. Cope) 

 Modern Ganoids {Polypterus and Lepidostens) 

 Frontispiicc. A Micrcsaurian of the Carboniferous Period 



{Hylonomus LyelH) 



Wings of Devonian Insects ....,! 

 Land-snail [Pupa vettista, Dn.) ..... 

 I-and-snail {Zonitts {Comihis) prisms^ Carpenter) 

 Millepedes (Xyhbius sigillarue, Dn. ; Archiultis xylobioides 



Scudder; X. farcius, Scudder) 



Wings of Cockroaches 



Wing of May-fly {Haplophlebium Barnesii, Scudder) . 

 Abdominal part of the larva of a Carboniferous Dragon-fly 



{Libellula carbonaria, Scudder) .... 



A Jurasi-ic Sphinx-moth (Sphinx Snellen', Weyenburgli) 

 An Eocene Butterfly {Prodryas persephone, Scudder) . 

 Carboniferous Scorpion (Eoscorpius carbonarius. Meek and 



Worthen) 



Footprints of one of the oldest known Batrachians, probably 



a species of Dendrerpeton 



Archtgosaurtis Decheni 



Ftyonius * ] 



A large Carboniferous Labyrinthodont (Bapheles plankep. 



Owen) 



Baphetes plankeps (Owen) 



A lizard-like Amphibian {Hylononms aciedentatus) 

 Stelliosaurtis longkostattts (Fritsch) .... 



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idMiaMiaaH 



