Where: Chubut, Argentina (42.6° S, 70.0° W: paleocoordinates 44.7° S, 58.4° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Lefipán Formation, Maastrichtian (72.1 - 66.0 Ma)
Environment/lithology: terrestrial; lithified, argillaceous mudstone and lithified, sandy sandstone
Size class: microfossils
• Other: Palynomorphs
Preservation: soft parts, original sporopollenin
Collection methods: bulk, chemical, hydrochloric, hydroflouric
Primary reference: 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]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 150882: authorized by Carlos Jaramillo, entered by Patricio Santamarina on 17.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Lycopodiopsida | |
Retitriletes austroclavatidites Döring et al. 1963 clubmoss | |
Ceratosporites equalis Cookson and Dettmann 1958 clubmoss
Camarozonosporites ambigens Playford 1971 clubmoss | |
Magnoliopsida | |
Rhoipites minusculus Archangelsky 1973
Rousea patagonica Archangelsky 1973
Haloragacidites trioratus Couper 1953
Ailanthipites mulleri Milne 1988 | |
Microcachryidites antarcticus Couper 1953 podocarp | |
Dicotyledoneae | |
Symplocoipollenites cf. austellus Partridge 1963 sweetleaf | |
Ericipites scabratus Harris 1965 heather | |
Angiospermae | |
Cunoniaceae "sp." Brown 1814 | |
Bombacacidites "sp." Couper 1960 | |
Monosulcites minutiscabratus McIntyre 1968 | |
Propylipollis "sp. 1", Propylipollis "sp. 2", Propylipollis lateflexus, Triporopollenites ambiguus, Proteacidites truncatus, Proteacidites tenuiexinus
Propylipollis "sp. 1" Martin and Harris 1975
Propylipollis "sp. 2" Martin and Harris 1975
Propylipollis lateflexus Baldoni and Askin 1993
Triporopollenites ambiguus Couper 1973
Proteacidites tenuiexinus Stover 1973 | |
Peninsulapollis gillii Dettmann and Jarzen 1988 | |
Tubulifloridites lilliei Farabee and Canright 1986 daisy | |
Tricolpites reticulatus Couper 1953 | |
Schizocolpus "sp." Stover and Partridge 1973 | |
Clavatipollenites hughesii Kemp 1968 | |
Longapertites patagonicus Archangelsky 1973 palm | |
Liliacidites "sp. 1", Liliacidites "sp. 2", Liliacidites cf. kaitangataensis, Liliacidites variegatus
Liliacidites "sp. 1" Couper 1953
Liliacidites cf. kaitangataensis Couper 1953
Liliacidites variegatus Couper 1953 | |
Lycopsida | |
Foveotriletes lacunosus Partridge 1973
Foveotriletes cf. parvirectus Dettmann 1963 | |
Pteridopsida | |
Cyathidites "sp." Couper 1953
Cyathidites minor Couper 1953
Todisporites major Couper 1953
Deltoidospora "sp." Miner 1935 | |
Polypodiopsida | |
Leptolepidites densus Archangelsky 1972
Leptolepidites macroverrucosus Schultz 1967 | |
Baculatisporites turbioensis Archangelsky 1972
Baculatisporites comaumensis Potonie 1953
Rugulatisporites chubutensis Baldoni 1992 | |
Cyatheacidites annulatus Cookson 1947 | |
Trichotomosulcites subgranulatus Couper 1953 | |
Gleicheniidites "sp." Dettmann 1963
Gleicheniidites circinidites Dettmann 1963
Clavifera triplex Bolkhovitina 1966 | |
Biretisporites "sp." Delcourt et al. 1963 | |
Crybelosporites "sp." Dettmann 1963 | |
Klukisporites "sp." Couper 1958 | |
Dictyophyllidites concavus Harris 1965 | |
Cycadopites | |
Cycadopites nitidus de Jersey 1964 | |
Ginkgoopsida | |
Ephedripites notensis Cookson 1957 | |
Cingutriletes | |
Cingutriletes australis Archangelsky 1972 | |
Nyssapollenites | |
Nyssapollenites cf. pachyexinus Baldoni and Askin 1993 | |
Equisetopsida | |
Araucariacites australis Cookson 1947 | |
Stellidiopollis annulatus | |
Stellidiopollis ? annulatus Dettmann and Hedlund 1988 |