Tecomazuchil Formation

The Tecomazuchil Formation is a geologic formation in Oaxaca, Mexico. It is made up of "a basal conglomerate 135 m thick and predominantly composed of quartz and metamorphic rock fragments, overlain by about 600 m of interbedded tan to red conglomerates, sandstones, and siltstones. The Tecomazuchil Formation overlies unconformably the Acatlán Complex and has been assigned a Middle Jurassic age, though it could represent at least part of the Oxfordian."[2] Fossil Bennettitales have been found in the formation.[3]

Tecomazuchil Formation
Stratigraphic range: Callovian
TypeGeological Formation
UnderliesChimeco Limestone
OverliesAcatlán Complex
Lithology
PrimarySilty Sandstone[1]
Location
RegionPuebla Province
Country Mexico
Type section
Named by
  • Rafael Pérez-Ibarguengoitia
  • Antonio Hokuto-Castillo
  • Alencaster de Cserna

See also

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References

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  1. ^ "3 Ayuquililla (Jurassic of Mexico)". FossilWorks. Retrieved 17 December 2021.
  2. ^ Westermann, Gerd E. G. (1992). The Jurassic of the Circum-Pacific. Cambridge University Press. p. 100. ISBN 0521019923. Retrieved 5 April 2017.
  3. ^ Lozano-Carmona, Diego E.; Corro-Ortiz, Marcos Germán; Morales, René Luis; Velasco-De León, María Patricia (2021-06-01). "Weltrichia xochitetlii sp. nov. (Bennettitales) from the Middle Jurassic of northwestern oaxaca, Mexico: First paleobotanical evidence from the Tecomazúchil Formation". Journal of South American Earth Sciences. 108: 103230. doi:10.1016/j.jsames.2021.103230. ISSN 0895-9811. S2CID 234085434.
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