RSC-1 borehole 726.75-727.5m sample, Austral Basin, Santa Cruz Province (Cretaceous to of Argentina)

Where: Santa Cruz, Argentina (50.0° S, 69.6° W: paleocoordinates 52.5° S, 57.2° W)

• coordinate estimated from map

When: Arcillas Fragmentosus Formation, Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine

• "The Upper Cretaceous comprises deposites that reflect a wider spectrum of environments ranging from deep marine to littoral. The succession as a whole suggests a cyclic pattern of deposition controlled by eustatic sea-level fluctuations (p.99)"

Size class: microfossils

Preservation: original sporopollenin

Collection methods: core, chemical,

• 0.100 kg processed for megaspores.

Primary reference: A. M. Baldoni and D. J. Batten. 1997. Cretaceous megaspores from two boreholes in the Austral Basin, Santa Cruz Province, Argentina, and their stratigraphic and paleoenvironmental significance. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 205(1):97-110 [R. Lupia/R. Lupia/R. Lupia]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 44190: authorized by Rick Lupia, entered by Rick Lupia on 03.09.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Pteridopsida
 Marsileales -
Arcellites cf. reticulatus, Arcellites santacrucensis
Arcellites cf. reticulatus Potter 1963
common
Trileites
  -
Trileites spp.
Trileites spp. Marcinkiewicz 1971
common