Ehlers,George M. and Edward P. Wright <br/><br/>
Leiopteria rafinesquii Hall and a new species of the genus from the Thedford-Arkona region of Southwestern Ontario 

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 - Michigan - EEUU  University of Michigan Press (Ann Arbor)  1959 
 - 13p.  22x30cm 
 - Contributions from the Museum of Paleontology   v.15(1) .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Ontario--Paleontologia--Moluscos fosiles--Paleozoologia--Mollusca--Fosiles--Fauna fosil--Canada<br/>Geologia