﻿Report 
  of 
  the 
  State 
  Geologist. 
  

  

  1127 
  

  

  Family 
  OrthidvE, 
  Woodward. 
  

  

  Orthis, 
  Dalman, 
  1828. 
  

  

  Orthambonites, 
  Pander, 
  1830. 
  

   Plectorthis, 
  HaU, 
  1892. 
  

   Dinorthis, 
  HaU, 
  1892. 
  

   Plsesiomys, 
  Hall, 
  1892. 
  

   HerberteUa, 
  Hall, 
  1882. 
  

   Orthostrophia, 
  Hall, 
  1883. 
  

   Platystrophia, 
  King, 
  1850. 
  

   Heterorthis, 
  Hall, 
  1892. 
  

  

  Bilobites, 
  Linne, 
  1775. 
  

  

  Dicoelosia, 
  King, 
  1850. 
  

   Dalmanella, 
  Hall, 
  1892. 
  

   Rhipidomella, 
  GEhlert, 
  1880. 
  

  

  Rhipidomys, 
  CEhlert, 
  1887 
  . 
  

   Schizophoria, 
  King, 
  1850. 
  

   Orthotichia, 
  Hall, 
  1892. 
  

   Enteletes, 
  Fischer 
  de 
  Waldheim, 
  

  

  Syntrielasma, 
  Meek, 
  1865. 
  

  

  1830. 
  

  

  Family 
  Strophomenid^:, 
  King. 
  

  

  Orthidium, 
  Hall, 
  1892. 
  

   Strophomena, 
  Rafinesque 
  (de 
  Blain- 
  

  

  ville), 
  1825. 
  

   Orthothetes, 
  Fischer 
  de 
  Waldheim, 
  

  

  1830. 
  

   Hipparionyx, 
  Vanuxem, 
  1842. 
  

   KaysereUa, 
  HaU, 
  1892. 
  

  

  Derbya, 
  Waagen, 
  1884. 
  

   MeekeUa, 
  White 
  and 
  St. 
  John, 
  1868. 
  

   Streptorhynchus, 
  King, 
  1850. 
  

   Triplecia, 
  HaU, 
  1848. 
  

  

  Dicraniscus, 
  Meek, 
  1872. 
  

   Mimulus, 
  Barrande, 
  1879. 
  

   Streptis, 
  Davidson, 
  1881. 
  

  

  Family 
  Lept^enfdje. 
  

  

  Leptsena, 
  Dalman, 
  1828. 
  

  

  Leptagonia, 
  McCoy, 
  1844. 
  

   Rafinesquina, 
  Hall, 
  1892. 
  

   Stropheodonta, 
  HaU, 
  1852. 
  

   Brachyprion, 
  Shaler, 
  1865. 
  

   DouviUina, 
  CEhlert, 
  1887. 
  

   Leptostrophia, 
  HaU, 
  1892. 
  

   PhoUdostrophia, 
  HaU, 
  1892. 
  

  

  StrophoneUa, 
  HaU, 
  1879. 
  

   Amphistrophia, 
  HaU, 
  1892. 
  

   Leptella, 
  HaU, 
  1892. 
  

   Plectambonites, 
  Pander, 
  1830. 
  

   Christiania, 
  HaU, 
  1892. 
  

   Leptsenisca, 
  Beecher, 
  1890. 
  

   Davidsonia, 
  Bouchard, 
  1847. 
  

   CadomeUa, 
  Munier-Chalmas, 
  1887. 
  

  

  Family 
  Chonetidje. 
  

  

  Chonetes, 
  Fischer 
  de 
  Waldheim, 
  1837. 
  

   AnopUa, 
  HaU, 
  1892. 
  

   ChoneteUa, 
  Waagen, 
  1884. 
  

  

  Chonetina, 
  Krotow, 
  1888. 
  

   Chonostrophia, 
  HaU, 
  1892. 
  

   Chonopectus, 
  HaU, 
  1892. 
  

  

  Family 
  Pboductid^e, 
  Gray. 
  

  

  Strophalosia, 
  King, 
  1844. 
  

  

  Orthothrix, 
  Geinitz, 
  1847. 
  

  

  Leptcenalosia, 
  King, 
  1845. 
  

   DaviesieUa, 
  Waagen, 
  1884. 
  

   Aulosteges, 
  von 
  Helmersen, 
  1847. 
  

  

  ProducteUa, 
  Hall, 
  1867. 
  

   Productus, 
  HaU, 
  1867. 
  

   Marginifera, 
  Waagen, 
  1884. 
  

   ProboscideUa, 
  CEhlert, 
  1887. 
  

   Etheridgina, 
  CEhlert, 
  1887 
  

  

  185 
  

  

  