La Quinta Formation, Mexico

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La Quinta Formation
Stratigraphic range: Late Oligocene–Early Miocene
Type Geological Formation
Unit of Simojovel Group
Underlies Mazantic Shale
Location
Region Chiapas
Country Mexico

La Quinta Formation is a geological formation in Chiapas, Simojovel in Mexico, deposited during the Late Oligocene into the early Miocene. It is the oldest known formation where Mexican amber can be found. It underlies the Mazantic Shale. [1]

Contents

Paleobiota

The biota of the La Quinta Formation is primarily compoased of various insects, from wasps such as Hyptia deansi , [2] to ants such as Aphaenogaster praerelicta . [3] It is also home to some early fabacids, like Simojoflorum mijangosii . [4]

Color key
Taxon Reclassified taxonTaxon falsely reported as presentDubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Insecta

GenusSpeciesNotesImages
Hyptia [2] * H. deansi Ensign wasp.
Schwenckfeldina [5] * S. archoica Fungus gnat.
Mastotermes [6] * M. electromexicus Termite.
Termitaradus [7] * T. protera Termite bug.
Aphaenogaster [3] * A. praerelicta Ant.
Dicromantispa [8] * D. electromexicana Mantidfly.
Leptopharsa [9] * L. tacanae Lace bug.

Flora

GenusSpeciesNotesImages
Hymenaea [10] Legume fabacids.
Simojoflorum [4] * S. mijangosiiMimosoid fabacid.
Simojoflorum mijangosii specimen.jpg

See also

References

  1. ↑ An Oligo-Miocene Palynoflora from Simojovel (Chiapas, Mexico). Alan Keith Graham, American Journal of Botany, 86(1), pages 17-31, January 1999, doi : 10.2307/2656951
  2. 1 2 Jennings, J.T.; Krogmann, L.; Mew, S. (2012). "Hyptia deansi sp. nov., the first record of Evaniidae (Hymenoptera) from Mexican amber" (PDF). Zootaxa. 3349: 63–68. doi:10.11646/zootaxa.3349.1.7.
  3. 1 2 De Andrade, M. L. (1995). "The ant genus Aphaenogaster in Dominican and Mexican amber (Amber Collection Stuttgart: Hymenoptera, Formicidae. IX: Pheidolini)". Stuttgarter Beiträge zur Naturkunde. Serie B (Geologie und Paläontologie). 223: 1–11.
  4. 1 2 Hernández-Damián, Ana L.; Rubalcava Knoth, Marco A.; Gómez-Acevedo, Sandra L.; Cruz-Durán, Ramiro; Cevallos-Ferriz, Sergio R. S. (13 January 2026). "Simojoflorum mijangosii gen. et sp. nov. preserved in the Mexican amber unravels the polycarpellate condition in the tribe Mimoseae (Caesalpinioideae, Fabaceae)". Historical Biology: 1–16. doi: 10.1080/08912963.2025.2604147 .
  5. ↑ Solórzano Kraemer, M. M.; Mohrig, W. (2007). "Schwenckfeldina archoica sp. nov. (Diptera, Sciaridae) from the middle Miocene Mexican amber" (PDF). Alavesia. 1: 105–108.
  6. ↑ Krishna, K.; Emerson, A. E. (1983). "A New Fossil Species of Termite from Mexican Amber, Mastotermes electromexicus (Isoptera, Mastotermitidae)" (PDF). American Museum Novitates (2767): 1–8.
  7. ↑ Poinar, G.; Doyen, J. T. (1992). "A fossil termite bug, Termitaradus protera sp. n. (Hemiptera: Termitaphididae), from Mexican amber". Entomologica Scandinavica. 23: 89–93. doi:10.1163/187631292X00047.
  8. ↑ Engel, MS; Grimaldi, DA (2007). "The neuropterid fauna of Dominican and Mexican amber (Neuropterida, Megaloptera, Neuroptera)" (PDF). American Museum Novitates (3587): 1–58. doi:10.1206/0003-0082(2007)3587[1:TNFODA]2.0.CO;2. hdl:2246/5880. S2CID   49393365.
  9. ↑ Conty, D; Garrouste, R; Nel, A (2014). "The first lace bug from Chiapas amber (Totolapa, Mexico) (Hemiptera: Tingidae)". Annales de la Société Entomologique de France. New Series. 50 (3–4): 286–290. doi:10.1080/00379271.2014.982024. S2CID   83251915. – via  Taylor & Francis (subscription required)
  10. ↑ Poinar, G.; Brown, A. (2002). "Hymenaea mexicana sp. nov. (Leguminosae: Caesalpinioideae) from Mexican amber indicates Old World connections". Botanical Journal of the Linnean Society. 139 (2): 125–132. doi: 10.1046/j.1095-8339.2002.00053.x .


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