Cañadon Los Perros - Lefipan Formation (Cretaceous of Argentina)

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

Nyssapollenites
  -
Nyssapollenites cf. pachyexinus Baldoni and Askin 1993
Pinopsida
 Pinales - Podocarpaceae
 Pinales - Araucariaceae
Ginkgoopsida
 Ephedrales - Ephedraceae
Ephedripites notensis Cookson 1957 jointfir
Monocotyledoneae
 Arecales -
Spinizonocolpites "sp." Muller 1968
of Archangelsky 1973
Longapertites patagonicus Archangelsky 1973
  -
 Liliales - Liliidae
Liliacidites "sp. 2" Couper 1953
of Papu 1989
Cycadopites
  -
Cycadopites nitidus de Jersey 1964
Pteridopsida
  -
Todisporites major Couper 1953
Cyathidites "sp." Couper 1953
Cyathidites minor Couper 1953
 Osmundales - Osmundaceae
 Salviniales - Marsileaceae
Crybelosporites "sp." Dettmann 1963
 Schizaeales - Schizaeaceae
Klukisporites "sp." Couper 1958
Biretisporites "sp." Delcourt et al. 1963
 Gleicheniales - Matoniaceae
 Gleicheniales - Gleicheniaceae
Clavifera triplex Bolkhovitina 1966
Gleicheniidites "sp." Dettmann 1963
 Cyatheales -
  -
Lycopsida
  -
 Lycopodiales -
  -
Leptolepidites densus Archangelsky 1972
  - Selaginellaceae
Ceratosporites equalis Cookson and Dettmann 1958
  - Lycopodiaceae
Retitriletes austroclavatidites Döring et al. 1963
Cingutriletes
  -
Cingutriletes australis Archangelsky 1972
Magnoliopsida
  -
Ericipites scabratus Harris 1965
Rhoipites minusculus Archangelsky 1973
 Magnoliales - Chloranthaceae
  -
Rousea patagonica Archangelsky 1973
 Malvales - Bombacaceae
 Rosales - Cunoniaceae
Cunoniaceae "sp." Brown 1814
 Proteales - Proteaceae
Propylipollis "sp. 1" Martin and Harris 1975
Propylipollis "sp. 2" Martin and Harris 1975
Propylipollis lateflexus Baldoni and Askin 1993
 Proteales -
 Asterales - Asteraceae
Tubulifloridites lilliei Farabee and Canright 1986
  -
Symplocoipollenites
  -
Stellidiopollis annulatus
  -
Stellidiopollis ? annulatus Dettmann and Hedlund 1988