McRae Group

McRae Group
Stratigraphic range: Maastrichtian (Lancian)
~70–66 Ma
McRae Group near its type location, Elephant Butte Reservoir, New Mexico, USA. The light bands are "bathtub rings" from stands of the reservoir.
TypeGeological formation
Sub-unitsHall Lake Formation,
Jose Creek Formation,
Double Canyon Formation
UnderliesLove Ranch Formation
OverliesMesaverde Group
Thickness3,000 ft (910 m)
Lithology
PrimarySandstone, shale, conglomerate
OtherTuff
Location
Coordinates33°11′49″N 107°10′01″W / 33.197°N 107.167°W / 33.197; -107.167
Approximate paleocoordinates40°24′N 85°42′W / 40.4°N 85.7°W / 40.4; -85.7
RegionNew Mexico
Country United States
Type section
Named forFort McRae
Named byKelley & Silver
Year defined1952
McRae Group is located in the United States
McRae Group
McRae Group (the United States)
McRae Group is located in New Mexico
McRae Group
McRae Group (New Mexico)

The McRae Group is a geological group exposed in southern New Mexico whose strata, including layers of the Hall Lake Formation and Jose Creek Formation, date to the Late Cretaceous.[1] Dinosaur remains are among the fossils that have been recovered from this unit.[2][3][4][5]

  1. ^ Kelley & Silver 1952.
  2. ^ Weishampel, Dodson & Osmólska 2004, pp. 574–588.
  3. ^ Lozinsky, Richard; Hunt, Adrian; Wolberg, Donald; Lucas, Spencer (1984) [November 1984]. "Late Cretaceous (Lancian) dinosaurs from the McRae Formation, Sierra County, New Mexico". New Mexico Geology. 6 (4): 72–77. doi:10.58799/NMG-v6n4.72.
  4. ^ Wolberg, Donald; Lozinsky, Richard; Hunt, Adrian (1986). "Late Cretaceous (Maastrichtian-Lancian) vertebrate paleontology of the McRae Formation, Elephant Butte area, Sierra County, New Mexico" (PDF). New Mexico Geological Society. 37: 227–234.
  5. ^ Buck, Brenda J.; Mack, Greg H. (October 1995). "Latest Cretaceous (Maastrichtian) aridity indicated by paleosols in the McRae Formation, south-central New Mexico". Cretaceous Research. 16 (5): 559–572. Bibcode:1995CrRes..16..559B. doi:10.1006/cres.1995.1036. ISSN 0195-6671.