Where: Santa Cruz, Argentina (50.4° S, 72.2° W: paleocoordinates 52.3° S, 62.0° W)
• coordinate stated in text
When: La Irene Formation, Maastrichtian (72.1 - 66.0 Ma)
Environment/lithology: fluvial-deltaic; lithified, sandy sandstone and lithified, argillaceous, sandy shale
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: chemical, hydrochloric, hydroflouric
• Museum repositories: Provincial Regional Museum "Padre Manuel Jesús Molina" (MPM-MP) in the Río Gallego city, Santa Cruz, Argentina.
Primary reference: L. Povilauskas, V. Barreda, and S. Marenssi. 2008. Polen y esporas de la Formación La Irene (Maastrichtiano), sudoeste de la provincia de Santa Cruz, Argentina: primeros resultados. Geobios 41:819-831 [C. Jaramillo/J. Moreno/J. Moreno]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 149974: authorized by Carlos Jaramillo, entered by Jessica Moreno on 30.08.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Nyssapollenites | |
Nyssapollenites cf. squamosus Dettmann 1973 | |
Lycopodiopsida | |
Retitriletes austroclavatidites Döring et al. 1963 clubmoss | |
Perotrilites majus Evans 1970 spikemoss | |
Ceratosporites equalis Cookson and Dettmann 1958 clubmoss | |
Pteridopsida | |
Ischyosporites volkheimeri, Granulatisporites sp., Cyathidites sp., Cyathidites minor, Matonisporites sp.
Ischyosporites volkheimeri Filatoff 1975
Granulatisporites sp. Potonié and Kremp 1954
Cyathidites sp. Couper 1953
Cyathidites minor Couper 1953
Matonisporites sp. Couper 1958 | |
Polypodiopsida | |
Gleicheniidites senonicus Ross 1949 | |
Cicatricosisporites australiensis Potonié 1956 | |
Verrucosisporites sp. Potonie and Kremp 1954 | |
Laevigatosporites ovatus Wilson and Webster 1946 | |
Baculatisporites sp. Thomson and Pflug 1953
Baculatisporites comaumensis Potonie 1953 | |
Cycadopites | |
Cycadopites nitidus de Jersey 1964 | |
Ginkgoopsida | |
Equisetosporites sp. Daugherty 1941 | |
Dicotyledoneae | |
Ericipites scabratus Harris 1965 heather | |
Angiospermae | |
Proteacidites sp. Cookson and Couper 1953 | |
Retidiporites camachoii Archangelsky 1973
Peninsulapollis gillii Dettmann and Jarzen 1988 | |
Spinizonocolpites hialinus Archangelsky and Zamaloa 1986 palm
Arecipites sp. Nichols et al. 1973 palm
Arecipites minutiscabratus Mc Intyre 1968 palm
Longapertites sp. van Hoeken-Klinkenberg 1964 palm | |
Liliacidites sp. Couper 1953
Liliacidites cf. variegatus Couper 1953 | |
Clavatipollenites sp. Couper 1958 | |
Microcachryidites antarcticus, Phyllocladidites mawsonii, Trisaccites microsaccatum, Gamerroites psilasaccus, Podocarpidites elegans, Podocarpidites cf. ellipticus
Microcachryidites antarcticus Couper 1953 podocarp
Phyllocladidites mawsonii Cookson 1947 podocarp
Trisaccites microsaccatum Couper 1953 podocarp
Gamerroites psilasaccus Archangelsky 1988 podocarp
Podocarpidites elegans Romero 1977 podocarp
Podocarpidites cf. ellipticus Cookson 1947 podocarp | |
Magnoliopsida | |
Rousea patagonica Archangelsky 1973
Psilatricolporites sp. Pierce 1961
Senipites sp. Srivastava 1969
Rhoipites sp. Wodehouse 1933
Rhoipites minusculus Archangelsky 1973 | |
Rouseisporites reticulatus | |
Rouseisporites reticulatus Pocock 1962 | |
Bryopsida | |
Stereisporites antiquasporites Dettmann 1963 | |
Dinophyceae | |
Cleistosphaeridium sp. Davey 1966 |