Hannold Hill Formation

Last updated
Hannold Hill Formation
Stratigraphic range: Wasatchian
55.8–50  Ma
Type Geological formation
Unit of Tornillo Group
Location
Coordinates 29°24′N103°06′W / 29.4°N 103.1°W / 29.4; -103.1
Approximate paleocoordinates 33°42′N89°00′W / 33.7°N 89.0°W / 33.7; -89.0
Region Texas
CountryFlag of the United States (23px).png  United States
Type section
Named for Hannold Hill
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Hannold Hill Formation (the United States)
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Hannold Hill Formation (Texas)

The Hannold Hill Formation is an Early Eocene (Wasatchian) geologic unit in the western United States. [1] It preserves the fossilized remains of the ray Myliobatis and gar. [2]

Contents

Fossil content

The following fossils have been reported from the formation: [1]

Glires
Pantodonta
Perissodactyla
Placentalia
Primates

Wasatchian correlations

Wasatchian correlations in North America
Formation Wasatch DeBeque Claron Indian Meadows Pass Peak Tatman Willwood Golden Valley Coldwater Allenby Kamloops Ootsa Lake Margaret Nanjemoy Hatchetigbee Tetas de Cabra Hannold Hill Coalmont Cuchara Galisteo San Jose Ypresian (IUCS) • Itaboraian (SALMA)
Bumbanian (ALMA) • Mangaorapan (NZ)
Basin Powder River
Uinta
Piceance
Colorado Plateau
Wind River
Green River
Bighorn
Piceance




Colorado Plateau





Wind River





Green River






Bighorn
Williston Okanagan Princeton Buck Creek Nechako Sverdrup Potomac GoM Laguna Salada Rio Grande North Park Raton Galisteo San Juan
North America laea relief location map with borders.jpg
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Hannold Hill Formation (North America)
CountryFlag of the United States (23px).png  United States Flag of Canada (Pantone).svg  Canada Flag of the United States (23px).png  United States Flag of Mexico.svg  Mexico Flag of the United States (23px).png  United States
Copelemur Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg
Coryphodon Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg
Diacodexis Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg
Homogalax Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg
Oxyaena Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg
Paramys Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg Orange pog.svg
Primates Brown pog.svg Brown pog.svg Brown pog.svg Brown pog.svg Brown pog.svg Brown pog.svg Brown pog.svg
Birds White pog.svg White pog.svg White pog.svg White pog.svg White pog.svg
Reptiles SpringGreen pog.svg SpringGreen pog.svg SpringGreen pog.svg SpringGreen pog.svg SpringGreen pog.svg SpringGreen pog.svg SpringGreen pog.svg
Fish Blue pog.svg Blue pog.svg Blue pog.svg Blue pog.svg Blue pog.svg Blue pog.svg Blue pog.svg
Insects Steel pog.svg Steel pog.svg Steel pog.svg Steel pog.svg Steel pog.svg Steel pog.svg
Flora Green pog.svg Green pog.svg Green pog.svg Green pog.svg Green pog.svg Green pog.svg Green pog.svg Green pog.svg Green pog.svg
Environments Alluvial-fluvio-lacustrineFluvialFluvialFluvio-lacustrineFluvialLacustrineFluvio-lacustrineDeltaic-paludalShallow marineFluvialShallow marineFluvialFluvial
Pink ff0080 pog.svg Wasatchian volcanoclastics

Orange pog.svg Wasatchian fauna

Dark Green 004040 pog.svg Wasatchian flora
VolcanicYesNoYesNoYesNoYesNoYesNo

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References

  1. 1 2 Hannold Hill Formation at Fossilworks.org
  2. "Big Bend National Park," Hunt, Santucci, and Kenworthy, 2006, p.66
  3. 1 2 3 Lucas, 1998
  4. 1 2 3 4 5 Alroy, 2002
  5. Wilson, 1967

Bibliography