CRAWFORDSVILLE CRINOIDS

The large slab and the specimens on either side
of it are from a world-famous collecting locality in
Mississippian rocks near Crawfordsville, Indiana.
Here the ancient Mississippian sea floor must have
been a garden of crinoids, for their remains were
preserved by the thousands, buried in the mud that
presumably smothered them.

KEY TO SPECIMENS

<table>
  <tbody>
    <tr>
      <td>1-778</td>
      <td>3. Baryocrinus horeyi</td>
      <td>1-771</td>
      <td>25. Platycrinites hemisphericus</td>
    </tr>
    <tr>
      <td>1-771</td>
      <td>6. Diryocrinus indolanensis</td>
      <td>1-771</td>
      <td>31. Alcotocrinus unicus</td>
    </tr>
    <tr>
      <td>1-771</td>
      <td>19. Dichocrinus ficus</td>
      <td>1-771</td>
      <td>33. Scytalocrinus grandis</td>
    </tr>
    <tr>
      <td>1-771</td>
      <td>22. Gilbertocrinus tuberasus</td>
      <td>1-771</td>
      <td>36. Scytalocrinus robustus</td>
    </tr>
    <tr>
      <td>1-771</td>
      <td>23. Oyochocrinus exculptus</td>
      <td>1-771</td>
      <td>37. Forbesiocrinus multibrachiatus</td>
    </tr>
  </tbody>
</table>