Felch Quarry 1, Garden Park (YPM) (Jurassic to of the United States)

Also known as CO-3, Marsh-Felch Quarry, Marsh Quarry, Oil Creek

Where: Fremont County, Colorado (38.5° N, 105.2° W: paleocoordinates 34.2° N, 52.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Late/Upper Kimmeridgian to Late/Upper Kimmeridgian (155.7 - 145.0 Ma)

• Recent radiometric dates for several Garden Park localities suggest an approximate age of 152 Ma for the quarry (Trujillo and Kowallis, 2015; Whitlock et al., 2018)

•"The bone-bearing horizon is not more than 3 feet thick vertically", and is "about 150 feet above the red Triassic sandstones". 47.9 m above base of Morrison (J5 unconformity), w/in upper portion of 16 m thick interval contianing four sandstone bodies. Quarry in sandbody 4, with bones in two distinct layers.

• group of beds-level stratigraphic resolution

Environment/lithology: "channel"; lithified, lenticular, coarse-grained, white, yellow sandstone and claystone

• "river, lake, or estuary origin rather than consolidated beach sands"; "lower lacustrine unit, dominated by laminated mudstones and shales"; channel top-point bar in moderately drained floodplain. Most bones in upper channel lag, rather than lower point bar.
• "the bones are for the most part found in a very hard layer of sandstone, though they occasionally extend down for a short distance into the underlying clays." Sandstone described as "heavily bedded". Bones in a "coarse to gravelly, pale yellowish white sandstone." Sandstone body is broadly lenticular.

Size classes: macrofossils, mesofossils

Collected by S. & M. Felch, J. B. Hatcher, & Utterback in 1877–1903; reposited in the CM, UNSM, YPM

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

• discovered 1869 or 1870 by Sarah Felch, but not learned of by Marsh until 1877. 1877-1884, Marsh; 1900-1903 Carnegie Museum, Hatcher & Utterback

Primary reference: O. C. Marsh. 1878. Principal characters of American Jurassic dinosaurs. Part I. American Journal of Science and Arts 16:411-416 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 28366: authorized by Matthew Carrano, entered by Matthew Carrano on 10.02.2003, edited by David Nicholson and Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Docodonta - Docodontidae
Docodon sp.13 Marsh 1881 dodocont
Mammalia
 Theriamorpha - Dryolestidae
Kepolestes coloradensis n. gen. n. sp.13, "Dryolestes gracilis" = Amblotherium debilis6
Kepolestes coloradensis n. gen. n. sp.13 Simpson 1927 mammal
USNM 2723 (holotype right mandible)
"Dryolestes gracilis" = Amblotherium debilis6 Marsh 1881 mammal
Reptilia
 Loricata - Goniopholididae
Goniopholis sp.6 Owen 1842 crocodilian
Goniopholis felchi n. sp.3 crocodilian
Eutretauranosuchus sp.3 Mook 1967 crocodilian
 Saurischia -
Sauropoda indet.16 Marsh 1878 sauropod
 Saurischia - Brachiosauridae
Brachiosaurus sp.13 Riggs 1903 brachiosaurid
USNM 5730
 Saurischia - Camarasauridae
Camarasaurus sp.4 Cope 1877 camarasaurid
 Saurischia -
"Haplocanthus priscus n. gen. n. sp." = Haplocanthosaurus priscus7, "Haplocanthosaurus utterbacki n. sp." = Haplocanthosaurus priscus8
"Haplocanthus priscus n. gen. n. sp." = Haplocanthosaurus priscus7 Hatcher 1903 sauropod
CM 572, 33995, 2043, 2046
"Haplocanthosaurus utterbacki n. sp." = Haplocanthosaurus priscus8 Hatcher 1903 sauropod
CM 879
 Saurischia - Diplodocidae
Brontosaurus sp.6 Marsh 1879 diplodocid
"Eobrontosaurus yahnahpin" = Brontosaurus yahnahpin1 Filla and Redman 1994 diplodocid
CM 887
Diplodocinae indet.15 Janensch 1929 diplodocine
USNM 2672
Diplodocus longus n. gen. n. sp. Marsh 1878 diplodocine
YPM 1920
Galeamopus pabsti14 Tschopp and Mateus 2017 diplodocine
USNM 2673
 Saurischia - Dicraeosauridae
"Morosaurus agilis n. sp." = Smitanosaurus agilis5
"Morosaurus agilis n. sp." = Smitanosaurus agilis5 Marsh 1889 dicraeosaurid
USNM 5384 - type
 Theropoda -
"Allosaurus fragilis n. gen. n. sp." = Allosaurus fragilis6, "Labrosaurus ferox n. gen. n. sp." = Allosaurus fragilis12, Ceratosauria indet.2, Ceratosaurus nasicornis n. gen. n. sp.6, "Coelurus agilis" = Coelurus fragilis6
"Allosaurus fragilis n. gen. n. sp." = Allosaurus fragilis6 Marsh 1877 allosauroid
USNM 4734, 8335; YPM 1930
"Labrosaurus ferox n. gen. n. sp." = Allosaurus fragilis12 Marsh 1877 allosauroid
Ceratosauria indet.2 Marsh 1884 ceratosaur
Ceratosaurus nasicornis n. gen. n. sp.6 Marsh 1884 ceratosaur
USNM 4735; CM 21706
"Coelurus agilis" = Coelurus fragilis6 Marsh 1879 coelurosaur
 Ornithischia - Stegosauridae
Stegosaurus armatus6 Marsh 1877 ornithischian
Stegosaurus stenops n. sp.6 Marsh 1887 ornithischian
USNM 4934
 Ornithischia -
"Laosaurus gracilis" = Nanosaurus agilis6, "Camptosaurus medius" = Camptosaurus dispar6
"Laosaurus gracilis" = Nanosaurus agilis6 Marsh 1877 ornithopod
"Camptosaurus medius" = Camptosaurus dispar6 Marsh 1879 ornithopod
 Testudinata - Pleurosternidae
Glyptops plicatulus6 Cope 1877 turtle
Dorsetochelys buzzops n. sp.1 Bakker 1998 turtle
TGM 5001
 Testudinata -
Probaena sculpta n. sp.9 Hay 1903 turtle
CM 917, three-fourths of the carapace and the greater portion of the plastron
Osteichthyes
 Dipnoi - Ceratodontidae
Ceratodus guentheri n. sp.11 Marsh 1878 lungfish
YPM 205
Ceratodus felchi n. sp.10 Kirkland 1987 lungfish