Main Breakfast Bench Quarry (Jurassic of the United States)

Also known as WY-24

Where: Albany County, Wyoming (41.9° N, 105.9° W: paleocoordinates 37.7° N, 52.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Morrison Formation, Tithonian (152.1 - 145.0 Ma)

• 17 m below Dakota Sandstone

• bed-level stratigraphic resolution

Environment/lithology: deltaic; sandstone and green mudstone

• "swampy lake shore or delta"
• above: "thick, multi-storied trough-crossbedded sandstone"

•below: "finely laminated green mudstone"

Size classes: macrofossils, mesofossils

Collected by R. Bakker in 1978

Collection methods: quarrying, mechanical,

Primary reference: R. T. Bakker. 1990. A new latest Jurassic vertebrate fauna, from the highest levels of the Morrison Formation at Como Bluff, Wyoming, with comments on Morrison biochronology. Part I. Biochronology. Hunteria 2(6):1-3 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 39412: authorized by Matthew Carrano, entered by Matthew Carrano on 28.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Ornithischia - Nodosauridae
? Nodosauridae indet. Marsh 1890 ankylosaur
caudal centrum, "probably a nodosaur"
 Loricata -
Crocodylia indet. crocodilian
teeth, vertebrae, scute
 Testudines -
Testudines indet. Batsch 1788 turtle
shell fragments, limbs
 Testudinata - Pleurosternidae
Uluops uluops n. gen. n. sp.2
Uluops uluops n. gen. n. sp.2 Carpenter and Bakker 1990 turtle
CPS 100, skull (alternative number: UCM 53971)
Mammalia
 Theriamorpha - Paurodontidae
Foxraptor atrox n. gen. n. sp.1
Foxraptor atrox n. gen. n. sp.1 Bakker and Carpenter 1990 mammal
 Multituberculata - Zofiabaataridae
Zofiabaatar pulcher n. gen. n. sp.1
Zofiabaatar pulcher n. gen. n. sp.1 Bakker and Carpenter 1990 multituberculate
Osteichthyes
 Dipnoi -
Dipnoi indet. lungfish
"giant lungfish with low-crowned teeth"