NJG57-4-01
1977
Monoplacophora(mollusca) from the Upper Ordovician of Norway
57
4
297-312

Monoplacophora are rare fossils; only 15 specimens are known from the 4c-5b stratigraphic interval in Norway. Nevertheless, eight species assigned to five genera are recognized. All previously named species have been reillustrated and reassigned; one specific name is placed in synonymy. A new species of Patelliconus is named; this is the first report of the genus above the Middle Ordovician. Pygmaeoconus is questionably recognized in the Upper Ordovician for the first time, and a Norwegian Middle Ordovician species is assigned to it.

0029-196X
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