La Cantera: Early Cretaceous, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Cycadopites follicularis Wilson and Webster 1946
Cycadopites (nitidus) follicularis
Alisporites similis Dettmann 1963
Angiospermae
Stephanocolpites mastandreai Volkheimer and Salas 1975
Angiospermae - Chloranthales - Chloranthaceae
Coniferales - Podocarpaceae
Polypodiopsida - Blechnaceae
Polypodiopsida - Schizaeales - Schizaeaceae
Schizaeoisporites sp. Delcourt and Sprumont 1955
Polypodiopsida - Schizaeales
Polypodiopsida - Marsileaceae
Pteridopsida
Marchantiopsida - Marchantiidae
unclassified
Equisetopsida - Araucariaceae
Balmeiopsis limbatus (Balme 1957)
Equisetopsida - Cheirolepidiaceae
Classopollis simplex Reiser and Williams 1969
unclassified
Leiosphaeridia menendezii Volkheimer et al. 1977
Huitrinipollenites transitorius Volkheimer and Salas 1975
see common names

Geography
Country:Argentina State/province:San Luis
Coordinates: 33.0° South, 66.5° West (view map)
Paleocoordinates:30.5° South, 25.4° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Early Cretaceous
10 m.y. bin: Cretaceous 1-4
Key time interval: Early Cretaceous
Age range of interval: 143.1 - 100.5 m.y. ago
Stratigraphy
Geological group:Gigante Formation:La Cantera
Stratigraphy comments: Based on palynological studies by Stover (in Yrigoyen, 1975) on samples from the La Cantera Formation, an Early Cretaceous (pre-Aptian) age was established for this formation.
Lithology and environment
Primary lithology:gray,green lithified silty siltstone
Secondary lithology:red lithified sandstone
Lithology description: The La Cantera Formation is composed principally of green-gray siltstone ad claystone, with red sandstone and claystone interbedded at the top.
Environment:lacustrine indet.
Geology comments: The formation is interpreted as having been deposited in a lacustrine environment, according to its limited extent, palynoflora and lithological characteristics.
Taphonomy
Modes of preservation:soft parts,original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection methods:chemical,hydrochloric,hydroflouric
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:151090
Authorizer:C. Jaramillo Enterer:J. Moreno
Research group:paleobotany
Created:2013-09-21 05:17:34 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2016-09-21 05:17:34
Creative Commons license:CC0
Reference information

Primary reference:
48234. M. B. Prámparo. 1994. Lower Cretaceous palynoflora of the La Cantera Formation, San Luis Basin: correlation with other Cretaceous palynofloras of Argentina. Cretaceous Research 15:193-203 [C. Jaramillo/J. Moreno]