Editing Alberta (section)

=== Paleontology ===
[[File:Royal Tyrrell Museum of Palaeontology.jpg|thumb|upright=1.7|Specimens at the [[Royal Tyrrell Museum of Palaeontology]], in the [[Horseshoe Canyon Formation]] at [[Dinosaur Provincial Park]]. Some of the specimens, from left to right, are ''[[Hypacrosaurus]]'', ''[[Edmontosaurus]]'', ''[[Lambeosaurus]]'', ''[[Gorgosaurus]]'' (both in the background), ''[[Tyrannosaurus]]'', and ''[[Triceratops]]''.]]
Alberta has one of the greatest diversities and abundances of [[Late Cretaceous]] dinosaur fossils worldwide.<ref name="alberta-paleo" /> [[Taxon|Taxa]] are represented by complete fossil skeletons, isolated material, microvertebrate remains, and even [[Bone bed|mass graves]]. At least 38 dinosaur [[Type (biology)|type specimens]] were collected in the province. The [[Foremost Formation]], [[Oldman Formation]] and [[Dinosaur Park Formation]]s collectively compose the [[Judith River Group]] and are the most thoroughly studied dinosaur-bearing strata in Alberta.<ref name="alberta-paleo" />

Dinosaur-bearing strata are distributed widely throughout Alberta.<ref name="alberta-paleo" /> The [[Dinosaur Provincial Park]] area contains outcrops of the Dinosaur Park Formation and Oldman Formation. In Alberta's central and southern regions are intermittent [[Scollard Formation]] outcrops. In the [[Drumheller]] Valley and [[Edmonton]] regions there are exposed [[Horseshoe Canyon Formation|Horseshoe Canyon]] [[facies]]. Other [[Geological formation|formations]] have been recorded as well, like the [[Milk River Formation|Milk River]] and Foremost Formations. The latter two have a lower diversity of documented dinosaurs, primarily due to their lower total fossil quantity and neglect from collectors who are hindered by the isolation and scarcity of exposed outcrops. Their dinosaur fossils are primarily teeth recovered from microvertebrate fossil sites. Additional geologic formations that have produced only a few fossils are the [[Belly River Group]] and [[St. Mary River Formation]]s of the southwest and the northwestern [[Wapiti Formation]], which contains two ''[[Pachyrhinosaurus]]'' bone beds. The [[Bearpaw Formation]] represents strata deposited during a [[marine transgression]]. Dinosaurs are known from this formation, but represent specimens washed out to sea or reworked from older [[sediment]]s.<ref name="alberta-paleo">Ryan, M. J., and Russell, A. P., 2001. Dinosaurs of Alberta (exclusive of Aves): In: Mesozoic Vertebrate Life, edited by Tanke, D. H., and Carpenter, K., Indiana University Press, pp. 279–297.</ref>