Last Chance Road / Willow Springs (Jurassic to of the United States)

Where: Emery County, Utah (38.7° N, 111.4° W: paleocoordinates 35.1° N, 57.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - small; fine-grained, gray, calcareous sandstone

• "a shallow pond, or lake, separated from a large stream by an elevated area"
• "a fine grained, grey, limey sandstone"

Size classes: macrofossils, mesofossils

Preservation: cast

Collected by J Behunin & J. Behunin

Collection methods: surface (in situ),

• first discovered by Homer and Joanne Behunin of Redmond, Utah

Primary reference: M. E. J. Chandler. 1966. Fruiting organs from the Morrison Formation of Utah, U.S.A. Bulletin of the British Museum (Natural History), Geology 12(4):139-171 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 221973: authorized by Matthew Carrano, entered by Matthew Carrano on 03.09.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

• J. A. Jensen: "Several large dinosaur bones were present but due to the activity of amateur bone collectors there is little evidence left to suggest the mode of their introduction into the area."
Show authors, comments, and common names
Reptilia
 Dinosauria -
Dinosauria indet.
unclassified
  -
Plantae indet.
Plantae indet. Haeckel 1866
thorn and other indeterminate materials
Amphibia
 Cycadales -
Cycadales indet., Behuninia joannei n. gen. n. sp.
Cycadales indet. Dumortier 1829 cycads
Behuninia joannei n. gen. n. sp. Chandler 1966 cycads
BYU 1, 2, 3, 4, 7–10
 Caudata - Urodela
Jensensispermum redmondi n. gen. n. sp.
Jensensispermum redmondi n. gen. n. sp. Chandler 1966 salamander
BYU 22–30
Actinopteri
 Coniferales - Taxodineae
Taxodineae indet.
 Coniferales - Cupressaceae
Sequoia sp.
Sequoia sp. Endlicher 1847 coast redwood
Pinopsida
 Pinales - Taxodiaceae
Hillistrobus axelrodi n. gen. n. sp.
Hillistrobus axelrodi n. gen. n. sp. Chandler 1966
BYU 40–42
Angiospermae
  -
Carpolithus sp., Carpolithus provoensis n. sp., Carpolithus radiatus n. sp.
Carpolithus sp. Linnaeus 1768
Carpolithus provoensis n. sp. Chandler 1966
BYU 50
Carpolithus radiatus n. sp. Chandler 1966
BYU 51, 53, 58–60