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