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Centrosaurus apertus Lambe 1905 (ceratopsid)

Reptilia - Neornithischia - Ceratopsidae

PaleoDB taxon number: 63911

Alternative combination: Monoclonius apertus

Synonyms: Brachyceratops dawson Lambe 1902 (no. 358097), Brachyceratops dawsoni Lambe 1902 (no. 63910), Centrosaurus cutleri Brown 1917 (no. 63913), Centrosaurus dawsoni Lambe 1902 (no. 85262), Centrosaurus flexus Brown 1914 (no. 63960), Centrosaurus longirostris Sternberg 1940 (no. 66022), Monoclonius cutleri Brown 1917 (no. 56145), Monoclonius dawsoni Lambe 1902 (no. 63909), Monoclonius flexus Brown 1914 (no. 63961), Monoclonius inflexus Brown 1914 (no. 247247), Monoclonius longirostris Sternberg 1940 (no. 247248)

Full reference: L. M. Lambe. 1905. On the squamoso-parietal crest of the horned dinosaurs Centrosaurus apertus and Monoclonius canadensis from the Cretaceous of Alberta. Proceedings and Transactions of the Royal Society of Canada, series 2 10(4):1-9

Belongs to Centrosaurus according to P. Dodson et al. 2004

Sister taxa: none

Type specimens:

  • Centrosaurus apertus: NMC 971, a skull. Its type locality is Berry Creek south, GSC (NMC), which is in a Campanian terrestrial horizon in the Dinosaur Park Formation of Canada.
  • Centrosaurus longirostris: NMC 8795, a skull. Its type locality is RTMP Quarry 91, 1.5 miles south of Sand Creek (102 ft level), which is in a Campanian channel sandstone in the Dinosaur Park Formation of Canada.
  • Monoclonius cutleri: AMNH 5427, a partial skeleton. Its type locality is north fork, Sand Creek (50 ft level) [AMNH], which is in a Campanian terrestrial horizon in the Oldman Formation of Canada.
  • Monoclonius dawsoni: NMC 1173, a skull (scapula). Its type locality is Berry Creek south, GSC (NMC), which is in a Campanian terrestrial horizon in the Dinosaur Park Formation of Canada.
  • Monoclonius flexus: AMNH 5239, a skull. Its type locality is RTMP Quarry 57, Berry Creek, which is in a Campanian channel sandstone in the Dinosaur Park Formation of Canada.

Ecology: ground dwelling herbivore

Average measurements (in mm): femur length 800.0, fibula length 460.0, scapula length 711.0, tibia length 500.0

Estimated body mass: 2.15 tons based on femur length