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Ten-armed fossil cephalopod from the Pennsylvanian of Illinois |
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| Authors: | R G Johnson E S Richardson |
| Abstract: | Jeletzkya douglassae Johnson and Richardson is described as the oldest known representative of an extant squid group. The species is known from a single specimen from the Middle Pennsylvanian of Illinois. This very unusual fossil consists of the complete tentacular crown and a fragile shell. The arms bear hooks in double rows. |
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