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
Pteridopsida | |
Cyathidites "sp." Couper 1953
Cyathidites minor Couper 1953
Todisporites major Couper 1953
Deltoidospora "sp." Miner 1935 | |
Lycopsida | |
Foveotriletes cf. parvirectus Dettmann 1963
Foveotriletes lacunosus Partridge 1973 | |
Polypodiopsida | |
Gleicheniidites "sp." Dettmann 1963
Gleicheniidites circinidites Dettmann 1963
Clavifera triplex Bolkhovitina 1966 | |
Cyatheacidites annulatus Cookson 1947 | |
Dictyophyllidites concavus Harris 1965 | |
Klukisporites "sp." Couper 1958 | |
Trichotomosulcites subgranulatus Couper 1953 | |
Rugulatisporites chubutensis Baldoni 1992
Baculatisporites comaumensis Potonie 1953
Baculatisporites turbioensis Archangelsky 1972 | |
Crybelosporites "sp." Dettmann 1963 | |
Biretisporites "sp." Delcourt et al. 1963 | |
Leptolepidites macroverrucosus Schultz 1967
Leptolepidites densus Archangelsky 1972 | |
Magnoliopsida | |
Rhoipites minusculus Archangelsky 1973
Rousea patagonica Archangelsky 1973
Ailanthipites mulleri Milne 1988
Haloragacidites trioratus Couper 1953 | |
Microcachryidites antarcticus Couper 1953 podocarp | |
Angiospermae | |
Monosulcites minutiscabratus McIntyre 1968 | |
Clavatipollenites hughesii Kemp 1968 | |
Longapertites patagonicus Archangelsky 1973 palm | |
Liliacidites "sp. 1", Liliacidites "sp. 2", Liliacidites variegatus, Liliacidites cf. kaitangataensis
Liliacidites "sp. 1" Couper 1953
Liliacidites variegatus Couper 1953
Liliacidites cf. kaitangataensis Couper 1953 | |
Schizocolpus "sp." Stover and Partridge 1973 | |
Tricolpites reticulatus Couper 1953 | |
Peninsulapollis gillii Dettmann and Jarzen 1988 | |
Triporopollenites ambiguus, Proteacidites truncatus, Proteacidites tenuiexinus, Propylipollis "sp. 1", Propylipollis "sp. 2", Propylipollis lateflexus
Triporopollenites ambiguus Couper 1973
Proteacidites tenuiexinus Stover 1973
Propylipollis "sp. 1" Martin and Harris 1975
Propylipollis "sp. 2" Martin and Harris 1975
Propylipollis lateflexus Baldoni and Askin 1993 | |
Tubulifloridites lilliei Farabee and Canright 1986 daisy | |
Cunoniaceae "sp." Brown 1814 | |
Bombacacidites "sp." Couper 1960 | |
Dicotyledoneae | |
Ericipites scabratus Harris 1965 heather | |
Symplocoipollenites cf. austellus Partridge 1963 sweetleaf | |
Ginkgoopsida | |
Ephedripites notensis Cookson 1957 | |
Cycadopites | |
Cycadopites nitidus de Jersey 1964 | |
Nyssapollenites | |
Nyssapollenites cf. pachyexinus Baldoni and Askin 1993 | |
Equisetopsida | |
Araucariacites australis Cookson 1947 | |
Cingutriletes | |
Cingutriletes australis Archangelsky 1972 | |
Lycopodiopsida | |
Camarozonosporites ambigens Playford 1971 clubmoss
Ceratosporites equalis Cookson and Dettmann 1958 clubmoss | |
Retitriletes austroclavatidites Döring et al. 1963 clubmoss | |
Stellidiopollis annulatus | |
Stellidiopollis ? annulatus Dettmann and Hedlund 1988 |