244 



INDEXIOAL LIST OF FOSSILS. 



Agaricocrinus blairi, I, 167. 



Syn . Agaricocrinus planocon- 



vexus. 



Agaricocrinus brevis, I, 167. 

 Agaricocrinus bullatus, I, 168. 



Syn. Agaricocrinus americanus. 

 Agaricocrinus chouteauensis, 167. 



Syn. Agaricocrinus planocon- 



vexus. 

 Agaricocrinus excavatus, I, 168. 



Syn. Agaricocrinus americanus. 

 Agaricocrinus germanus, I, 167. 



Syn. Agaricocrinus planocon- 



vexus. 

 Agaricocrinus nodosus, I, 168. 



Syn. Agaricocrinus americanus. 

 Agaricocrinuspentagonus, I, 167. 

 Agaricocrinus planoconvexus, 1, 167 

 Agaricocrinus tuberosus, I, 168. 



Syn. Agaricocrinus americanus. 

 Agaricocrinus sampsoni, I, 167. 



Syn. Agaricocrinus planocon- 

 vexus. 



Agaricocrinus wortheni, I, 168. 

 Agassizocrinus dactyliformis, I, 



221. 

 Agassizocrinus globosus, I, 216. 



Syn. Cromyocrinus globosus. 

 Agelacrinus kaekaskiensis. 



Syn. Echinodiscus kaskaskiensis. 

 Allorisma antiqua, II, 127. 

 Allorisma costata, II, 128. 

 Allorisma cuneata, II, 131. 



Doubtful. 

 Allorisma ensiformis, II, 129. 



Syn. Allorisma subcuneatum. 

 Allorisma granosum, II, 128. 

 Allorisma hannibalensis, II, 127. 

 Allorisma leavenworthensis, II, 131. 



Syn. Cbaenomya leavenworthen- 

 sis. 

 Allorisma lata, II, 131. 



Doubtful. 



Alloriema marionensis, II, 127. 

 Allorisma minnehaha, II, 130. 



Syn. Chaenomya minnehaha. 

 Allorisma subcuneatum, II, 129. 

 Allorisma topekaensis, II, 128. 

 Amacanthus gibbosus, II, 237. 



Amboccelia gemmula, II, 85. 



Syn. Spirifera planoconvexus. 

 Amboco3lia minuta, II, 90. 

 Am plexus bicostatus, I, 109. 



Syn. Amplexus fragilis. 

 Amplexus coraloides, I, 109. 



Syn. Amplexus fragilis. 

 Amplexus fragilis, I, 109. 

 Amplexus yandelli, 108. 

 Amphoracrinus americanus, I, 168. 



Syn. Agaricocrinus americanus. 

 Amphoracrinus divergens, I, 166. 

 Amphoracrinus multiramosus, 1, 

 166. 



Syn. Amphoracrinus divergens. 

 Ancella hausmanni, 11,119. 



Syn. Myalina swallowi. 

 Anisotrypa solida, II, 16. 

 Anomia reticularis, II, 97. 



Syn. Atry pa reticularis. 

 Anomites puoctatus, II, 51. 



Syn. Productus punctatus, 

 Anomphalus rotulus, II, 154. 

 Area striata, II, 120. 



Syn. Macrodon tenuistriatus. 

 Archaeocidaris aculeata, I, 130. 

 Archaeocidaris agassizi, 1, 127. 

 Archaeocidaris biangulata, 1, 130. 

 Arcbaeocidaris dininnii, I, 130. 

 Archaeocidaris gracilis, I, 130. 



Syn. Archaeocidaris aculeata. 

 Arcbaaocid&rishallianus, 1, 129. 

 Archseocidaris keokuk, I, 128. 

 Archaeocidaris megastylus, I, 129. 

 Archaeocidaris newberryi, 1, 129. 

 Archaeocidaris norwoodi, I, 129. 

 Archaeocidaris shumardiana, 1,128. 

 Archaeocidaris verneuiliaoa, I, 130. 



Syn. Archaeocidaris aculeata. 

 Arcbaeocidaris wortheni, I, 128. 

 Archimedes laxus, II, 27. 

 Archimedes owenanus, II, 26. 

 Archimedes reversa, II, 26. 



Syn. Archimedes wortheni. 

 Archimedes swallowanus, II, 26. 

 Archimedes wortheni, II, 26. 

 Astartella concentrica, II, 126. 

 Astartella vera, II, 125. 



