Mugher Mudstone

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Mugher Mudstone
Stratigraphic range: Tithonian
Type Geological formation
Underlies Debre Libanos Sandstone, Amba Aradam Formation
Overlies Antalo Limestone
Thickness320 m (1,050 ft)
Lithology
Primary Mudstone, sandstone
Other Gypsum, dolomite, shale (base)
Location
Coordinates 9°30′N38°36′E / 9.5°N 38.6°E / 9.5; 38.6
Approximate paleocoordinates 12°18′S24°48′E / 12.3°S 24.8°E / -12.3; 24.8
Region Shewa
Country Ethiopia
Extent Ethiopian Highlands
Ethiopia rel location map.svg
Cyan pog.svg
Mugher Mudstone (Ethiopia)

The Mugher Mudstone is a geologic formation located in Ethiopia. It dates to the Tithonian stage of the Late Jurassic. The lithology consists of gypsum, dolomite and shale alternations at the base, overlain by mudstone intercalated with fine to medium grained sandstone. [1]

Contents

Indeterminate dromaeosaurid teeth are known from the formation. [2] Many other remains have been uncovered also, including indeterminate ornithopods and allosauroids. [3] The tooth of a macronarian sauropod is known from the formation [4]

See also

References

  1. Assefa, Getaneh (1991-08-10). "Lithostratigraphy and environment of deposition of the Late Jurassic - Early Cretaceous sequence of the central part of Northwestern Plateau, Ethiopia". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 182 (3): 255–284. doi:10.1127/njgpa/182/1991/255. ISSN   0077-7749.
  2. Mortimer, Mickey. "List of Dromaeosaurids". Archived from the original on July 28, 2014. Retrieved March 27, 2014.
  3. Goodwin, Mark B.; Clemens, William A.; Hutchison, J. Howard; Wood, Craig B.; Zavada, Michael S.; Kemp, Anne; Duffin, Christopher J.; Schaff, Charles R. (1999-12-13). "Mesozoic continental vertebrates with associated palynostratigraphic dates from the northwestern Ethiopian plateau". Journal of Vertebrate Paleontology. 19 (4): 728–741. Bibcode:1999JVPal..19..728G. doi:10.1080/02724634.1999.10011185. ISSN   0272-4634.
  4. Goodwin, Mark B.; Irmis, Randall B.; Wilson, Gregory P.; DeMar, David G.; Melstrom, Keegan; Rasmussen, Cornelia; Atnafu, Balemwal; Alemu, Tadesse; Alemayehu, Million (November 2019). "The first confirmed sauropod dinosaur from Ethiopia discovered in the Upper Jurassic Mugher Mudstone". Journal of African Earth Sciences. 159: 103571. Bibcode:2019JAfES.15903571G. doi: 10.1016/j.jafrearsci.2019.103571 .

Bibliography