La Cantera: Early Cretaceous, Argentina

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