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Cloverly Formation (Lower Cretaceous) vertebrate diversity

From:  Ben Creisler

My apologies for reposting this item. There was a dumb typo in the
subject line of my first posting--for the sake of accurate searches in
the DML archive, "Cloverly" needs to be spelled right.

Matthew P. J. Oreska, Matthew T. Carrano & Katherine M. Dzikiewicz (2013)
Vertebrate paleontology of the Cloverly Formation (Lower Cretaceous),
I: faunal composition, biogeographic relationships, and sampling
Journal of Vertebrate Paleontology 33(2): 264-292

The vertebrate fauna of the Cloverly Formation has been studied for
more than 75 years, but remains poorly sampled and incompletely
understood. We undertook an extensive survey of the formation that
resulted in the discovery of several new, highly productive vertebrate
microfossil bonebeds (VMBs). Comprehensive sampling of these and other
sites has nearly doubled the known vertebrate diversity of the
Cloverly Formation. In addition to the comparatively well-known
dinosaurs, this augmented faunal list includes hybodontoid sharks,
numerous bony fishes, three lissamphibian lineages, lizards, multiple
crocodylians, and several new mammal occurrences. The known Cloverly
vertebrate fauna now more closely resembles those of other late Early
Cretaceous formations in North America, indicating broad similarities
across wide geographic areas at this time. In addition, this work
underscores the important role VMBs can play in areas previously
studied primarily through surface prospecting and quarrying,
especially for assessing paleoecology and species diversity.