English: Reconstruction of USNM 5730, the "Felch Quarry Skull," which has been attributed to Brachiosaurus sp. Known material is shown in white, unknown material in gray. Unknown regions have been restored following the more complete skulls of Giraffatitan and Abydosaurus.

Key:

Bones

• an = angular
• ar = articular
• bo = basioccipital
• d = dentary
• eo = exoccipital-opisthotic
• j = jugal
• l = lacrimal
• m = maxilla
• n = nasal
• pa = parietal
• pm = premaxilla
• prf = prefrontal
• po = postorbital
• qj = quadratojugal
• sa = surangular
• sq = squamosal

Fenestrae

• aof = antorbital fenestra
• en = external naris
• ltf = lateral temporal fenestra
• o = orbit

References

• D'Emic, M. D.; Carrano, M. T. (2020). "Redescription of brachiosaurid sauropod dinosaur material from the Upper Jurassic Morrison Formation, Colorado, USA". The Anatomical Record 303 (4): 732-758.
• Carpenter, K. (1998). "Preliminary description of a Brachiosaurus skull from Felch Quarry 1, Garden Park, Colorado". Modern Geology 23 (1–4): 69–84.
• Janensch, W. (1935). "Die schädel der sauropoden Brachiosaurus, Barosaurus und Dicraeosaurus aus den Tendaguru-Schichten Deutsch-Ostafrikas". Palaeontographica 2 (Suppl. 7): 147–298.
• Chure, D.; Britt, B. B.; Whitlock, J. A.; Wilson, J. A. (201). "First complete sauropod dinosaur skull from the Cretaceous of the Americas and the evolution of sauropod dentition". Naturwissenschaften 97 (4): 379-391. DOI:10.1007/s00114-010-0650-6.