Tecomazuchil Formation

Last updated
Tecomazuchil Formation
Stratigraphic range: Callovian
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O
S
D
C
P
T
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K
Pg
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Type Geological Formation
UnderliesChimeco Limestone
OverliesAcatlán Complex
Lithology
PrimarySilty Sandstone [1]
Location
Region Puebla Province
Country Mexico
Type section
Named by
  • Rafael Pérez-Ibarguengoitia
  • Antonio Hokuto-Castillo
  • Alencaster de Cserna

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]

Contents

See also

References

  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   0-521-01992-3 . 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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