Formación Loreto: Late/Upper Eocene - Oligocene, Chile

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
cf. Pilularia informal sp.
Solisphaeridium informal sp. 1 Staplin et al. 1965
Solisphaeridium informal sp. 2 Staplin et al. 1965
Gorgonisphaeridium informal sp. Staplin et al. 1965
Baltisphaeridium informal sp. Eisenack 1958
Equisetopsida - Araucariaceae
Araucariacites informal sp. Cookson and Couper 1953
Lycopodiopsida - Lycopodiales - Lycopodiaceae
cf. Lycopodium informal sp. Linnaeus 1753
Pteridopsida
Triletes informal sp. Reinsch 1881
? Osmundacidites informal sp. Couper 1953
Cyathidites informal sp. Couper 1953
Polypodiopsida - Gleicheniaceae
Gleicheniidites informal sp. Dettmann 1963
Polypodiopsida - Schizaeales - Lygodiaceae
? Lygodium informal sp. Swartz 1800
Polypodiopsida - Dicksoniaceae
Cyatheacidites annulatus Cookson 1947
Triletes tuberculiformis (Cookson 1947)
original and current combination Trilites tuberculiformis
Angiospermae - Fagales
Nothofagidites informal sp. Potonié 1960
Nothofagidites cf. waipawaensis Romero 1973
Nothofagidites cf. cranwellae Mildenhall 2003
Nothofagidites cincta Cookson 1969
Angiospermae - Gunnerales
Tricolpites informal sp. 1 Couper 1953
Tricolpites informal sp. 2 Couper 1953
Angiospermae - Proteales - Proteaceae
Beaupreaidites elegansiformis Cookson 1950
Proteacidites informal sp. Cookson and Couper 1953
Proteacidites cf. symphyonemoides Cookson 1950
Proteacidites cf. subscabratus Couper 1960
Coniferales - Podocarpaceae
Dacrydiumites florinii microspore Cookson and Pike 1953
Archangelsky and Romero 1974
Phyllocladidites mawsonii Cookson 1947
Trisaccites informal sp. 1 Menéndez 1968
Trisaccites informal sp. 2 Menéndez 1968
Trisaccites microsaccatum microspore (Couper 1953)
Archangelsky and Romero 1974
original and current combination Trisaccites microsaccatus
Podocarpidites informal sp. Cookson 1947
Magnoliopsida
Tricolporites informal sp. 1 Cookson 1947
Tricolporites informal sp. 2 Cookson 1947
Bivalvia - Mytilida - Mytilidae
Dacrydium aff. cupressinum Couper 1960
Hystrichosphaeridea
Hystrichosphaera informal sp. Wetzel 1933
see common names

Geography
Country:Chile State/province:Doceava Región
Coordinates: 53.1° South, 71.0° West (view map)
Paleocoordinates:55.0° South, 61.7° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Paleogene
Key time interval:Late/Upper Eocene - Oligocene
Age range of interval:37.20000 - 23.03000 m.y. ago
Stratigraphy
Formation:Loreto
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: lithified sandy sandstone
Secondary lithology: lithified argillaceous mudstone
Environment:terrestrial indet.
Geology comments: Se sugieren ambientes de bosque de Fagaceas y Gimnospermas.
Taphonomy
Modes of preservation:body,soft parts,original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection excludes:all macrofossils
Collection methods:bulk,chemical,hydrochloric,hydroflouric,field collection
Reason for describing collection:biostratigraphic analysis
Collection method comments: Repository: Sección Paleobotánica del Museo de Historia Natural de Santiago.
Metadata
Database number:151436
Authorizer:C. Jaramillo Enterer:P. Santamarina, C. Jaramillo
Research group:micropaleontology
Created:2013-10-01 23:53:43 Last modified:2013-10-01 08:53:43
Access level:authorizer only Released:2018-10-01 23:53:43
Creative Commons license:CC BY
Reference information

Primary reference:

48392. A. Fasola. 1969. Estudio palinológico de la Formación Loreto (Terciario Medio), Provincia de Magallanes, Chile. Ameghiniana VI(1):3-49 [C. Jaramillo/P. Santamarina]

Secondary references:

55102 S. Archangelsky and E. J. Romero. 1974. Polen de Gimnospermas (Coniferas) del Cretácico Superior y Paleoceno de Patagonia. Ameghiniana 11(3):217-236 [C. Jaramillo/C. Jaramillo]