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McLearn, F. H. (1926). New Jurassic species from the Hazelton Group of British Columbia. Bulletin, Canada, Department of Mines, Geological Survey. 44: 89-149.
444249
McLearn, F. H.
1926
New Jurassic species from the Hazelton Group of British Columbia
Bulletin, Canada, Department of Mines, Geological Survey
44: 89-149
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Trigonia guhsani McLearn, 1926 † (original description)