6231 (Cretaceous of Argentina)

Where: Santa Cruz, Argentina (48.5° S, 69.2° W: paleocoordinates 49.4° S, 35.4° W)

When: Anfiteatro de Ticó Formation (Baqueró Group), Aptian (125.0 - 113.0 Ma)

• The collection is 6 m below the dated horizon.

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified, silty shale

• High sinuosity rivers (Facies Association E of Limarino et al., 2012)

Size class: microfossils

Preservation: soft parts, original sporopollenin

Reposited in the MACN

Collection methods: bulk, chemical, hydrochloric, hydroflouric,

Primary reference: V.S. Perez Loinaze and M. Llorens. 2018. Palynology of the Baquero Group (upper Aptian), Patagonia Argentina: An integrated study. Cretaceous Research 86:219-237 [P. Narvaez/P. Narvaez/P. Narvaez]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 223086: authorized by Paula Narvaez, entered by Paula Narvaez on 03.11.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Viretrisporites signatus, Jusinghipollis ticoensis
Angiospermae
 Chloranthales - Chloranthaceae
Clavatipollenites sp.
Clavatipollenites sp. Couper 1958
Clavatipollenites sp. 2 in Archangelsky and Archangeslky 2013
 Coniferales - Podocarpaceae
Callialasporites trilobatus, Gamerroites sp., Microcachrydites antarcticus, Podocarpidites ellipticus
Callialasporites trilobatus Balme 1957 podocarp
Gamerroites sp. Archangelsky 1988 podocarp
Gamerroites sp. cf. G. psilasaccus
Podocarpidites ellipticus Cookson 1947 podocarp
Algae
  - Zygnemataceae
Ovoidites parvus
Ovoidites parvus Nakoman 1966
Lycopodiopsida
 Selaginellales -
Ceratosporites equalis, Densoisporites velatus
Ceratosporites equalis Cookson and Dettmann 1958 clubmoss
Densoisporites velatus Dettmann 1963 clubmoss
Equisetopsida
 Pinidae - Pinidae
Cyclusphaera annularis n. sp., Cyclusphaera punnulosa, Cyclusphaera psilata, Balmeiopsis limbatus, Classopollis triangulatus, Classopollis simplex, Classopollis classoides
Cyclusphaera psilata Volkheimer and Sepulveda 1976
Classopollis simplex Reiser and Williams 1969
Polypodiopsida
  - Gleicheniaceae
Gleicheniidites senonicus
  - Dicksoniaceae
Cyatheacidites tectifera
Cyatheacidites tectifera Archangelsky and Gamerro 1965
 Schizaeales - Polypodiidae
Ruffordiaspora australiensis, Plicatella baqueroensis
Ruffordiaspora australiensis Dettmann and Clifford 1992
  - Polypodiaceae
Trichotomosulcites microsaccatus
Chomotriletes
  -
Chomotriletes minor
Chomotriletes minor Pocock 1970