The La Cantera Formation is a Late Aptian,[1] geologic formation in Argentina.[2] Fossil theropod tracks have been reported from the formation.[3] The formation, deposited under lacustrine conditions, also has provided fossil plants, insects, fish and gastropods.[4][5]
| La Cantera Formation | |
|---|---|
| Stratigraphic range: Late Aptian ~ | |
| Type | Geological formation |
| Unit of | Gigante Group |
| Lithology | |
| Primary | Siltstone |
| Other | Sandstone, conglomerate |
| Location | |
| Coordinates | 33°00′S 66°30′W / 33.0°S 66.5°W |
| Approximate paleocoordinates | 33°06′S 32°42′W / 33.1°S 32.7°W |
| Region | San Luis Province, San Juan Province |
| Country | Argentina |
| Extent | San Luis Basin |
| Type section | |
| Named for | Cantera de Picca |
  La Cantera Formation (Argentina) | |
Fossil content
editAmong the following fossils are reported from the formation:[2]
Insects
edit- Hemiptera
Flora
edit- Alisporites similis
- Rugubivesiculites sp.
- Trisaccites microsaccatus
- Podosporites sp.
- Classopollis simplex
- Callialasporites trilobatus
- Cycadopites follicularis
- Crybelosporites sp.
- Appendicisporites sp.
- Cicatricosisporites australiensis
- Deltoidospora sp.
- Leptolepidites major
- Taurocusporites segmentatus
- Staplinisporites caminus
- Triporoletes reticulatus
- Coptospora sp.
- Couperisporites sp.
- Stephanocolpites mastandreai
- Clavatipollenites hughesii
- Leiosphaeridia hyalina
- L. menendezii
- Balmeiopsis limbatus
- Huitrinipollenites transitorius
See also
editReferences
edit- ^ Castillo Elías et al., 2016
- ^ a b La Cantera Formation at Fossilworks.org
- ^ Weishampel et al., 2004, pp.517-607
- ^ La Cantera at Fossilworks.org
- ^ Castillo Elías, 2014
- ^ Mazzoni, 1985
- ^ Petrulevicius et al., 2010
Bibliography
edit- Castillo, Elías; Sánchez, María Lidia; Prámparo, Mercedes B. (2016), La Formación La Cantera: un ejemplo de relleno lacustre durante el pico de subsidencia del sistema de rift de Sierras Pampeanas Occidentales, San Luis (Cretácico Inferior), VII Congreso Latinoamericano de Sedimentología, retrieved 2019-02-16
- Castillo Elías, Gabriela (2014), Depósitos lacustres de la Formación La Cantera (Aptiano Tardío), Sierras de El Gigante, cuenca de San Luis: nuevos aportes sedimentológicos, XIV Reunión Argentina de Sedimentología, retrieved 2019-02-16
- Petrulevicius, J. F.; Nel, A.; Sallenave, A. S. (2010), "Recent genus Notonecta (Insecta: Heteroptera: Notonectidae) in the Lower Cretaceous of San Luis, Argentina: Palaeoecological implications", Annales de la Société Entomologique de France, 46 (1–2): 247–253, doi:10.1080/00379271.2010.10697665
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21
- Prámparo, M. B (1994), "Lower Cretaceous palynoflora of the La Cantera Formation, San Luis Basin: correlation with other Cretaceous palynofloras of Argentina", Cretaceous Research, 15 (2): 193–203, Bibcode:1994CrRes..15..193P, doi:10.1006/cres.1994.1010
- Mazzoni, A. F (1985), "Notonectidae (Hemiptera, Heteroptera) de la formación La Cantera (Cretácico Inferior), Provincia de San Luis, Argentina", Boletin de la Academia Nacional de Ciencias, 56: 259–273