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

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

Where: Fremont County, Colorado (38.5° N, 105.2° W: paleocoordinates 34.0° N, 52.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Kimmeridgian to Kimmeridgian (157.3 - 145.0 Ma)

• "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 H. 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 H. 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

 Dipnoi - Ceratodontidae
Ceratodus guentheri n. sp.11 Marsh 1878 lungfish
YPM 205
Ceratodus felchi n. sp.10 Kirkland 1987 lungfish
 Testudines - Pleurosternidae
Dorsetochelys buzzops n. sp.1 Bakker 1998 turtle
TGM 5001
Glyptops plicatulus6 Cope 1877 turtle
 Testudines -
Probaena sculpta n. sp.9 Hay 1903 turtle
CM 917, three-fourths of the carapace and the greater portion of the plastron
 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
Diplodocinae indet.15 Janensch 1929 diplodocine
USNM 2672
Galeamopus pabsti14 Tschopp and Mateus 2017 diplodocine
USNM 2673
Diplodocus longus n. gen. n. sp. Marsh 1878 diplodocine
YPM 1920
Brontosaurus sp.6 Marsh 1879 diplodocid
"Eobrontosaurus yahnahpin" = Brontosaurus yahnahpin1 Filla and Redman 1994 diplodocid
CM 887
 Saurischia - Camarasauridae
Camarasaurus sp.4 Cope 1877 camarasaurid
Morosaurus agilis n. sp.5 Marsh 1889 camarasaurid
YPM 1904/USNM 5384
? Morosaurus agilis5 Marsh 1889 camarasaurid
 Saurischia - Brachiosauridae
Brachiosaurus sp.13 Riggs 1903 brachiosaurid
USNM 5730
 Avetheropoda - Allosauridae
"Allosaurus fragilis n. gen. n. sp." = Allosaurus fragilis6, "Labrosaurus ferox n. gen. n. sp." = Allosaurus fragilis12
"Allosaurus fragilis n. gen. n. sp." = Allosaurus fragilis6 Marsh 1877 allosaurid
USNM 4734, 8335; YPM 1930
"Labrosaurus ferox n. gen. n. sp." = Allosaurus fragilis12 Marsh 1877 allosaurid
 Avetheropoda -
Coelurus agilis6 Marsh 1884 coelurosaur
 Saurischia -
Ceratosaurus nasicornis n. gen. n. sp.6 Marsh 1884 ceratosaur
USNM 4735; CM 21706
 Ornithischia - Stegosauridae
Stegosaurus armatus6 Marsh 1877 ornithischian
Stegosaurus stenops n. sp.6 Marsh 1887 ornithischian
USNM 4934
 Neornithischia -
"Camptosaurus medius" = Camptosaurus dispar6, "Laosaurus gracilis" = Nanosaurus rex6
"Camptosaurus medius" = Camptosaurus dispar6 Marsh 1879 bird foot dinosaur
"Laosaurus gracilis" = Nanosaurus rex6 Marsh 1877 bird foot dinosaur
 Loricata - Goniopholididae
Eutretauranosuchus sp.3 Mook 1967 crocodilian
Goniopholis sp.6 Owen 1842 crocodilian
Goniopholis felchi n. sp.3 crocodilian
 Theriiformes - Dryolestidae
Kepolestes coloradensis n. gen. n. sp.13, "Dryolestes gracilis" = Amblotherium gracilis6
Kepolestes coloradensis n. gen. n. sp.13 Simpson 1927 mammal
USNM 2723 (holotype right mandible)
"Dryolestes gracilis" = Amblotherium gracilis6 Marsh 1879 mammal
 Docodonta - Docodontidae
Docodon sp.13 Marsh 1881 dodocont