Palo Seco creek: Campanian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Pteridopsida
Deltoidospora minor Pocock 1970
Polypodiopsida - Osmundaceae
Baculatisporites sp. Thomson and Pflug 1953
Magnoliopsida
Rhoipites sp. Wodehouse 1933
Rousea patagonica Archangelsky 1973
Striatricolporites sp. Leidelmeyer 1966
Angiospermae - Liliaceae
Liliacidites vermireticulatus Archangelsky and Zamaloa 1986
Angiospermae - Gunnerales
Tricolpites sp. Couper 1953
Angiospermae - Proteales
Peninsulapollis gillii Dettmann and Jarzen 1988
Angiospermae - Proteales - Proteaceae
Triporopollenites sp. Pflug and Thomson 1953
Ginkgoopsida - Ephedrales
Ephedripites informal sp. 1 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 2 Bolkhovitina and Potonié 1958
Ephedripites multicostatus Brenner 1963
Ephedripites caichiguensis Narváez and Sabino 2008
(Volkheimer and Quattrocchio 1975a) nov. comb. (Narvaez and Sabino 2008)
Equisetopsida - Cheirolepidiaceae
Classopollis sp. Pflug 1953
Gymnospermopsida
Singhia sp. Srivastava 1967
unclassified
Gnetaceaepollenites sp. Thiergart 1938
see common names

Geography
Country:Argentina State/province:Salta
Coordinates: 25.4° South, 65.8° West (view map)
Paleocoordinates:28.7° South, 48.2° West
Basis of coordinate:estimated from map
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Campanian
Age range of interval:83.60000 - 72.10000 m.y. ago
Stratigraphy
Geological group:Salta Formation:Las Curtiembres Member:Morales
Stratigraphic resolution:bed
Stratigraphy comments: The Palo Seco creek is an affluent of the Las Conchas creek.
Lithology and environment
Primary lithology: lithified argillaceous "shale"
Secondary lithology: lithified muddy "limestone"
Includes fossils?Y
Lithology description: The overlying Las Curtiembres Formation is composed of fine-grained sediments widely distributed in the basin. During the rift climax, the Las Conchas Basalt was formed by pyroclastic and lava flows. Green siltstones, whitish sandstones and micritic limestones of the lacustrine Morales Member accumulated in volcanic event. The Morales Member, which belongs to the middle section of the Las Curtiembres Formation, is known for its fossil pipid frogs that appear together with badly preserved plant remains and clupeiform fish. During the late synrift, the coarse-grained sandstones and conglomerates of the Los Blanquitos Formation were deposited.
Environment:fluvial-lacustrine indet.
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
Collection method comments: The palynologic slides are stored at the Paleopalynology Collection of the Department of Geology and Paleontology at IANIGLA as numbers of catalogue: 8361 to 8364 MPLP (Mendoza-Paleopalinoteca-Laboratorio- Paleopalinología).
Metadata
Database number:149979
Authorizer:C. Jaramillo Enterer:J. Moreno
Modifier:P. Mannion Research group:paleobotany
Created:2013-08-30 04:39:44 Last modified:2021-04-15 09:21:30
Access level:authorizer only Released:2016-08-30 04:39:44
Creative Commons license:CC BY
Reference information

Primary reference:
48039. P. L. Narváez and I. F. Sabino. 2008. Palynology of the Las Curtiembres Formation (Late Cretaceous, Salta Group Basin), Las Conchas Creek area, northwestern Argentina. Ameghiniana 45(2):473-482 [C. Jaramillo/J. Moreno]