Borehole 1-QS-1-MA, Sample 10 (Cretaceous to of Brazil)

Also known as Barreninhas Basin

Where: Maranhao, Brazil (3.7° S, 44.6° W: paleocoordinates 10.9° S, 18.9° W)

When: Preguicas Formation, Late/Upper Albian to Late/Upper Albian (105.3 - 93.5 Ma)

Environment/lithology: deltaic; lithified, argillaceous shale and lithified limestone

• 230 m of thin beds of alternating shales and limestones. At 1340 m the first sandy layers appear which soon become more important. The underlying 150 m show silty sandstones with subordinate thin limestones and shales.

Size class: microfossils

Preservation: soft parts, original sporopollenin

Collection methods: chemical, hydrochloric, hydroflouric, sieve

Primary reference: G. F. W. Herngreen. 1973. Palynology of the Albian-Cenomanian strata of Borehole 1-QS-1-MA, State of Maranhao, Brazil. Pollen et Spores 15(3-4):515-555 [C. Jaramillo/G. Doria/A. Cardenas ]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 142281: authorized by Carlos Jaramillo, entered by Gabriela Doria on 07.04.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Hexapororicolpites emilianovi, Psilatrilestes sp., Sofreipites legouxae, Tricolpates "div. 1 sp.", Acritarch indet.
Striatricolpites
  -
Striatricolpites "sp. 1", Striatricolpites "sp. 2"
Striatricolpites "sp. 1" Van der Hammen 1956
Striatricolpites "sp. 2" Van der Hammen 1956
Psilatricolpites
  -
Psilatricolpites "sp. 1", Psilatricolpites "sp. 2", Psilatricolpites "sp. 3", Psilatricolpites spp.
Psilatricolpites "sp. 1" Van der Hammen and Wijmstra 1964
Psilatricolpites "sp. 2" Van der Hammen and Wijmstra 1964
Psilatricolpites "sp. 3" Van der Hammen and Wijmstra 1964
Psilatricolpites spp. Van der Hammen and Wijmstra 1964
Retitricolpites
  -
Retitricolpites "sp. 1", Retitricolpites "sp. 2", Retitricolpites "sp. 3", Retitricolpites "sp. 4", Retitricolpites "sp. 5", Retitricolpites operculatus
Retitricolpites "sp. 1" Van der Hammen 1956
Retitricolpites "sp. 2" Van der Hammen 1956
Retitricolpites "sp. 3" Van der Hammen 1956
Retitricolpites "sp. 4" Van der Hammen 1956
Retitricolpites "sp. 5" Van der Hammen 1956
Triporites
  -
Triporites sp.
Triporites sp. Van der Hammen 1954
Equisetopsida
 Pinidae - Pinidae
Classopollis "greaterthanthirty", Classopollis "lessthanthirty", Classopollis spinosus
Scabramonocolpites
  -
Scabramonocolpites sp.
Retitriporites
  -
Retitriporites sp.
Retitriporites sp. Ramanujam 1966
Dicotyledoneae
  -
Triorites sp., Triorites africaensis, Stephanocolpites sp.
Triorites sp. Couper 1953
Triorites africaensis Jardiné and Magloire 1965
Stephanocolpites sp. Van der Hammen 1954
Angiospermae
 Buxales - Didymelaceae
Hexaporotricolpites lamellaferus
 Gunnerales -
Tricolpites indet.
Tricolpites indet. Couper 1953
 Austrobaileyales - Trimeniaceae
Cretacaeiporites scabratus, Cretacaeiporites mulleri
Cretacaeiporites mulleri Herngreen 1973
  -
Monosulcites sp., Afropollis jardinus, Retimonocolpites sp.
Monosulcites sp. Cookson and Couper 1953
Afropollis jardinus Doyle et al. 1982
Retimonocolpites sp. Pierce 1961
Ginkgoopsida
 Ephedrales -
Ephedripites barghorrrnii, Ephedripites brasiliensis, Ephedripites "sp. 1", Ephedripites "sp. 10", Ephedripites "sp. 11", Ephedripites "sp. 2", Ephedripites "sp. 3", Ephedripites "sp. 4", Ephedripites "sp. 5", Ephedripites "sp. 6", Ephedripites "sp. 7", Ephedripites "sp. 8", Ephedripites "sp. 9", Ephedripites jansonii
Ephedripites "sp. 1" Bolkhovitina and Potonié 1958
Ephedripites "sp. 10" Bolkhovitina and Potonié 1958
Ephedripites "sp. 11" Bolkhovitina and Potonié 1958
Ephedripites "sp. 2" Bolkhovitina and Potonié 1958
Ephedripites "sp. 3" Bolkhovitina and Potonié 1958
Ephedripites "sp. 4" Bolkhovitina and Potonié 1958
Ephedripites "sp. 5" Bolkhovitina and Potonié 1958
Ephedripites "sp. 6" Bolkhovitina and Potonié 1958
Ephedripites "sp. 7" Bolkhovitina and Potonié 1958
Ephedripites "sp. 8" Bolkhovitina and Potonié 1958
Ephedripites "sp. 9" Bolkhovitina and Potonié 1958
Ephedripites jansonii Muller 1968
Cycadopsida
 Cycadales -
Eucommiidites sp.
Eucommiidites sp. Erdtman 1948 cycads
 Gnetales -
Elaterocolpites castelani, Elaterosporites verrucatus, Elaterosporites protensus, Elaterosporites klaszi, Steevesipollenites multilineatus, Steevesipollenites binodosus
Elaterocolpites castelani Herngreen 1973 elaterate
Elaterosporites verrucatus Jardiné 1967 elaterate
Elaterosporites protensus Jardiné 1967 elaterate
Elaterosporites klaszi Jardiné 1967 elaterate
Steevesipollenites binodosus Stover 1964 cycads
Polypodiopsida
 Schizaeales - Polypodiidae
Cicatricosisporites mohroides, Cicatricosisporites sp., Cicatricosisporites hallei, Klukisporites sp.
Cicatricosisporites sp. Potonie and Gelletich 1933
Cicatricosisporites hallei Delcourt and Sprumont 1955
Klukisporites sp. Couper 1958
Pteridopsida
  -
Cyathidites sp., Osmundacidites cf. primarius
Cyathidites sp. Couper 1953
Lycopodiopsida
 Lycopodiales - Lycopodiaceae
Lycopodiumsporites sp.
Lycopodiumsporites sp. Delcourt and Sprumont 1955 clubmoss
Galeacornea causea
  -
Galeacornea causea
Galeacornea causea Stover 1963 elaterate
Verrutriletes
  -
Verrutriletes "sp. 1", Verrutriletes "sp. 2", Verrutriletes "sp. 3", Verrutriletes "sp. 4"
Verrutriletes "sp. 2" Pierce 1961
Verrutriletes "sp. 3" Pierce 1961
Verrutriletes "sp. 4" Pierce 1961
Foraminifera
 Foraminifera -
Foraminifera indet.
Chomotriletes
  -
Chomotriletes sp.
Chomotriletes sp. Naumova 1953
Senegalosporites
  -
Senegalosporites petrobrasi
Senegalosporites petrobrasi Herngreen 1973 elaterate
Perotriletes pannuceus
  -
Perotriletes pannuceus
Elateropollenites jardinei
  -
Elateropollenites jardinei
Elateropollenites jardinei Herngreen 1973 elaterate
Reyrea polymorphus
  -
Reyrea polymorphus
Reyrea polymorphus Herngreen 1973