Cañadon Los Perros - Lefipan Formation: Maastrichtian, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polypodiopsida - Dicksoniaceae
Cyatheacidites annulatus Cookson 1947
Polypodiopsida - Polypodiaceae
Trichotomosulcites subgranulatus Couper 1953
Polypodiopsida - Schizaeales - Schizaeaceae
Klukisporites informal sp. Couper 1958
Polypodiopsida - Gleicheniales - Matoniaceae
Dictyophyllidites concavus Harris 1965
Polypodiopsida - Osmundaceae
Baculatisporites turbioensis Archangelsky 1972
Baculatisporites comaumensis Potonie 1953
Rugulatisporites chubutensis Baldoni 1992
Polypodiopsida
Biretisporites informal sp. Delcourt et al. 1963
Polypodiopsida - Marsileaceae
Crybelosporites informal sp. Dettmann 1963
Polypodiopsida - Gleicheniaceae
Clavifera triplex Bolkhovitina 1966
Gleicheniidites informal sp. Dettmann 1963
Gleicheniidites circinidites Dettmann 1963
Polypodiopsida - Blechnaceae
Leptolepidites densus Archangelsky 1972
Leptolepidites macroverrucosus Schultz 1967
Lycopsida
Foveotriletes cf. parvirectus Dettmann 1963
Foveotriletes lacunosus Partridge 1973
Pteridopsida
Deltoidospora informal sp. Miner 1935
Cyathidites informal sp. Couper 1953
Cyathidites minor Couper 1953
Todisporites major Couper 1953
Magnoliopsida
Ailanthipites mulleri Milne 1988
Baldoni and Askin 1993
Haloragacidites trioratus Couper 1953
Baldoni and Askin 1993
Rhoipites minusculus Archangelsky 1973
Baldoni and Askin 1993
Rousea patagonica Archangelsky 1973
Baldoni and Askin 1993
Angiospermae - Asterales - Asteraceae
Tubulifloridites lilliei Farabee and Canright 1986
Baldoni and Askin 1993
Angiospermae - Buxales - Didymelaceae
Schizocolpus informal sp. Stover and Partridge 1973
Baldoni and Askin 1993
Angiospermae - Gunnerales
Tricolpites reticulatus Couper 1953
Baldoni and Askin 1993
Angiospermae - Proteales - Proteaceae
Triporopollenites ambiguus Couper 1973
Baldoni and Askin 1993
Propylipollis informal sp. 1 Martin and Harris 1975
Baldoni and Askin 1993
Propylipollis informal sp. 2 Martin and Harris 1975
Baldoni and Askin 1993
Propylipollis lateflexus Baldoni and Askin 1993
Baldoni and Askin 1993
Proteacidites truncatus
Baldoni and Askin 1993
Proteacidites tenuiexinus Stover 1973
Baldoni and Askin 1993
Angiospermae - Proteales
Peninsulapollis gillii Dettmann and Jarzen 1988
Baldoni and Askin 1993
Angiospermae - Chloranthales - Chloranthaceae
Clavatipollenites hughesii Kemp 1968
Baldoni and Askin 1993
Angiospermae - Liliaceae
Liliacidites informal sp. 1 Couper 1953
Baldoni and Askin 1993
Liliacidites informal sp. 2 Couper 1953
Baldoni and Askin 1993
of Papu 1989
Liliacidites variegatus Couper 1953
Baldoni and Askin 1993
Liliacidites cf. kaitangataensis Couper 1953
Baldoni and Askin 1993
Angiospermae - Arecaceae
Longapertites patagonicus Archangelsky 1973
Baldoni and Askin 1993
Spinizonocolpites informal sp. Muller 1968
Baldoni and Askin 1993
of Archangelsky 1973
Angiospermae
Monosulcites minutiscabratus McIntyre 1968
Angiospermae - Malvales - Bombacaceae
Bombacacidites informal sp. Couper 1960
Baldoni and Askin 1993
Angiospermae - Oxalidales - Cunoniaceae
Cunoniaceae informal sp. Brown 1814
Baldoni and Askin 1993
Angiospermae - Ericales - Ericaceae
Ericipites scabratus Harris 1965
Baldoni and Askin 1993
Angiospermae - Ericales - Symplocaceae
Symplocoipollenites cf. austellus Partridge 1963
Baldoni and Askin 1993
Coniferales - Podocarpaceae
Microcachryidites antarcticus Couper 1953
unclassified
Cingutriletes australis Archangelsky 1972
Nyssapollenites cf. pachyexinus Baldoni and Askin 1993
Baldoni and Askin 1993
Equisetopsida - Araucariaceae
Araucariacites australis Cookson 1947
Lycopodiopsida - Selaginellales
Ceratosporites equalis Cookson and Dettmann 1958
Camarozonosporites ambigens Playford 1971
Lycopodiopsida - Lycopodiales
Retitriletes austroclavatidites Döring et al. 1963
unclassified
Cycadopites nitidus de Jersey 1964
Ginkgoopsida - Ephedrales
Ephedripites notensis Cookson 1957
unclassified
Stellidiopollis ? annulatus Dettmann and Hedlund 1988
Baldoni and Askin 1993
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 42.6° South, 70.0° West (view map)
Paleocoordinates:44.7° South, 58.4° West
Basis of coordinate:estimated from map
Altitude:925 meters
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Formation:Lefipán
Lithology and environment
Primary lithology: lithified argillaceous mudstone
Secondary lithology: lithified sandy sandstone
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body,soft parts,original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection methods:bulk,chemical,hydrochloric,hydroflouric
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:150882
Authorizer:C. Jaramillo Enterer:P. Santamarina
Modifier:P. Santamarina Research group:micropaleontology
Created:2013-09-17 04:44:32 Last modified:2013-09-18 11:47:20
Access level:authorizer only Released:2018-09-17 04:44:32
Creative Commons license:CC BY
Reference information

Primary reference:

48206. A. M. Baldoni. 1992. Palynology of the Lower Lefipan Formation (Upper Cretaceous) of Barranca de Los Perros,Chubut Province, Argentina. Part I. Cryptogam Spores and Gymnosperm Pollen. American Association of Stratigraphic Palynologists 16:117-136 [C. Jaramillo/P. Santamarina]

Secondary references:

48008 A. M. Baldoni and R. A. Askin. 1993. Palynoogy of the Lower Lefipan Formation (Upper Cretaceous) of Barranca de los Perros, Chubut Province, Argentina. Part II. Angiosperm pollen and discussion. Palynology 17:241-264 [C. Jaramillo/P. Santamarina/P. Santamarina]