Editing Albertosaurus (section)

===Other discoveries===
[[File:Albertosaurus skull Royal Tyrrell 1.jpg|thumb|left|Skull TMP 1985 098 0001]]
In 1911, Barnum Brown, during the second year of the American Museum of Natural History's operations in Alberta, uncovered a fragmentary partial ''Albertosaurus'' skull at the Red Deer River near Tolman Bridge (specimen AMNH 5222).<ref>Carpenter, K., 1992, "Tyrannosaurids (Dinosauria) of Asia and North America", In: N. Mateer and P.-J. Chen (eds.) ''Aspects of nonmarine Cretaceous geology''. China Ocean Press, Beijing, China, pp. 250–268</ref>

[[William Parks (paleontologist)|William Parks]] described a new species in 1928, ''Albertosaurus arctunguis'', based on a partial skeleton lacking a skull that was excavated by Gus Lindblad and Ralph Hornell near the Red Deer River in 1923,<ref name=parks1928>{{cite journal |last=Parks |first=William A. |author-link=William Parks (paleontologist)|year=1928 |title=''Albertosaurus arctunguis'', a new species of therapodous dinosaur from the Edmonton Formation of Alberta |journal=University of Toronto Studies, Geological Series |volume=25 |pages=1–42}}</ref> but this species has been considered identical to ''A. sarcophagus'' since 1970.<ref name=russell1970/> Parks' specimen (ROM 807) is housed in the [[Royal Ontario Museum]] in [[Toronto]].<ref name=TankeCurrie2010/>

No ''Albertosaurus'' fossils were found from 1926 to 1972, but there has been an increase in findings since then. Apart from the Dry Island bonebed, six more skulls and skeletons have since been discovered in Alberta and are housed in various Canadian museums. Specimen RTMP 81.010.001 was found in 1978 by amateur paleontologist Maurice Stefanuk. RTMP 85.098.001 was found by Stefanuk on June 16, 1985. RTMP 86.64.001 was found in December 1985. RTMP 86.205.001 was found in 1986. RTMP 97.058.0001 was found in 1996 and then there is CMN 11315. Unfortunately, none of these skeletons were found with complete skulls.<ref name=TankeCurrie2010/> Fossils have also been reported from the American states of Montana, New Mexico, [[Wyoming]], and [[Missouri]], but they are doubted to be from ''A. sarcophagus'' and may not even belong to the genus ''Albertosaurus''.<ref name=holtz2004/><ref name=currie2003b/>

Two specimens from "cf ''Albertosaurus'' ".sp" have been found in [[Mexico]] ([[Packard Formation]] and [[Corral de Enmedio Formation]]).<ref name="sullivanlucas-alberto">Listed as "cf. ''Albertosaurus'' sp." "Corral De Enmedio and Packard Formations, Cabollona Group, Sonora, Mexico," in Sullivan and Lucas (2006). Page 16.</ref>