Barnum Brown was born in Carbondale on February 12th, 1873.

The genus was created by Barnum Brown in 1903 with the species P. nebrascensis.

Similarly, Barnum Brown claimed to have seen over 500 skulls in the field.

Barnum Brown prospected the formation in 1933, but found nothing significant.

Barnum Brown always wore a tie and topcoat, even in the field.

The earliest Tyrannosaurus skeletons were found in 1902 by Barnum Brown.

Its remains were collected but not prepared by Barnum Brown in 1918, from rocks better known for their fossils of marine life.

Barnum Brown prospected the Two Medicine Formation, but found nothing significant.

Remains of the second Tyrannosaurus rex specimen, the first recognized as such, are excavated by Barnum Brown.

The type species, S. osborni, was described by Barnum Brown in 1912 from Canadian fossils.