CA 5 - 1981 (Cretaceous to of Chile)

Where: Doceava Región, Chile (52.8° S, 68.7° W: paleocoordinates 52.1° S, 30.1° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Springill Formation, Valanginian to Valanginian (139.8 - 125.0 Ma)

Environment/lithology: deltaic; lithified, argillaceous shale

Size class: microfossils

• Palynomorphs

Preservation: original sporopollenin

Collected by ENAP Oil Company

Collection methods: core, chemical, hydrochloric, hydroflouric

• The material was provided by the ENAP Oil Company of Chile.

Primary reference: M. E. Quattrocchio, M. A. Martínez, A. Carpinelli Pavisich and W. Volkheimer. 2006. Early Cretaceous palynostratigraphy, palynofacies and palaeoenvironments of well sections in northeastern Tierra del Fuego, Argentina. Cretaceous Research 27:584-602 [C. Jaramillo/P. Santamarina]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 150017: authorized by Carlos Jaramillo, entered by Patricio Santamarina on 30.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Pinales - Araucariaceae
Araucariacites fissus Reiser and Williams 1969
Cyclusphaera psilata Volkheimer and Sepulveda 1976
 Pinales - Cheirolepidiaceae
Classopollis simplex Reiser and Williams 1969
 Pinales -
Cycadopites nitidus de Jersey 1964
Concavisporites "sp." Delcourt and Sprumont 1955
 Schizaeales -
Ruffordiaspora australiensis Dettmann and Clifford 1992
 Schizaeales - Schizaeaceae
cf. Biretisporites "sp. A" Delcourt et al. 1963
(in Archangelsky and Villar de Seoane, 1994)
 Gleicheniales - Gleicheniaceae
 Polypodiales - Pteridaceae
Verrucosisporites "sp. A" Potonie and Kremp 1954
(in Archangelsky and Villar de Seoane, 1994)
Verrucosisporites major Burden and Hills 1989
  - Selaginellaceae
Ceratosporites equalis Cookson and Dettmann 1958
  - Lycopodiaceae
Retitriletes austroclavatidites Döring et al. 1963
Converrucosisporites "sp. 1" Potonié and Kremp 1954
(in Baldoni and Archangelsky, 1983)
Staplinisporites caminus
 Life -
Cymatiosphaera "spp." Wetzel and Deflandre 1954 acritarcs
 Gymnospermophyta -
  - Pareodiniaceae
Batioladinium cf. micropodum Eisenack and Cookson 1960
Balmeiopsis limbatus
Balmeiopsis limbatus Archangelsky 1977