South Dragon Canyon, "lizard locality" (Cretaceous of the United States)

Also known as 1937 Smithsonian Paleontological Expedition, CM Loc. 3022

Where: Emery County, Utah (39.2° N, 111.3° W: paleocoordinates 47.0° N, 88.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: North Horn Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• lower part of formation

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by C. W. Gilmore, C. L. Gazin in 1937-1940; reposited in the USNM

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: C. W. Gilmore. 1938. Fossil hunting in Utah and Arizona. Explorations and Field-Work of the Smithsonian Institution in 1937 3480:1-4 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 45721: authorized by Matthew Carrano, entered by Matthew Carrano on 29.11.2004, edited by Albert Garcia Selles

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Saurischia - Saltasauridae
Alamosaurus sanjuanensis5 Gilmore 1922 saltasaurine
 Ornithischia - Spheroolithidae
Spheroolithus sp.1 Zhao 1979 ornithopod
UCM 73461, HEC 760 consisting of more than 17 fragments.
Spheroolithus indet.1 Zhao 1979 ornithopod
UCM 73462, HEC 830-1,2, consisting of 3 fragments
  - Prismatoolithidae
Prismatoolithus jenseni1 Bray 1999 dinosaur
HEC 761; HEC 829-1, 2, 3; HEC 831-1
Spheruprismatoolithus condensis1 dinosaur
HEC 832-1,2,3; thousands of fragments
 Theropoda - Elongatoolithidae
Spongioolithus hirschi1 Bray 1999 theropod
HEC 80
 Crocodylia -
Pinacosuchus mantiensis n. gen. n. sp.3
Pinacosuchus mantiensis n. gen. n. sp.3 Gilmore 1942 crocodilian
USNM 16592
 Squamata - Polyglyphanodontidae
Polyglyphanodon sternbergi n. gen. n. sp.2 Gilmore 1940 squamates
"small lizard"
Paraglyphanodon utahensis n. gen. n. sp.2 Gilmore 1940 squamates
USNM 15668
Paraglyphanodon gazini n. sp.4 Gilmore 1943 squamates
USNM 16580