Dictionary of Human Evolution and Biology

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Picrodus Silberlingi Douglass, 1908

Archaic mammal of the middle and late Paleocene of the Rocky Mountain region of North America belonging to the plesiadapiform family Picrodontidae; most workers recognize one species, but some authorities collapse the other two picrodontid genera into Picrodus and recognize three species. Dental formula:; first molars enlarged, basins are present in the other molars, along with crenulated enamel; this is suggestive of the extant nectarivorous bats and has led to speculation that these animals were pollinators who fed on nectar. Estimated body mass around 40 g.

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