Borehole 1-QS-1-MA, Sample 2 (Cretaceous of Brazil)

Also known as Barreninhas Basin

Where: Maranhao, Brazil (3.7° S, 44.6° W: paleocoordinates 10.6° S, 19.4° W)

When: Queimadas Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

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

• The upper 85 m consist of Rrapidly alternating sandstones, shales, marls and limestones passing into a 300 m thick interval of marls and mainly lemestones with decreasing clay content. The lower 500 meters are dominated by shales with occasionally limestone beds; at the top 200 m frequently marls are interbeded

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 139464: authorized by Carlos Jaramillo, entered by Gabriela Doria on 12.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Psilatrilestes sp., Tricolpates "div. 1 sp.", Hexapororicolpites emilianovi, Sofreipites legouxae, Acritarch indet.
Psilatricolpites
  -
Psilatricolpites spp., Psilatricolpites "sp. 1", Psilatricolpites "sp. 2", Psilatricolpites "sp. 3"
Psilatricolpites spp. Van der Hammen and Wijmstra 1964
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
Retitricolpites
  -
Retitricolpites "sp. 3", Retitricolpites "sp. 4", Retitricolpites "sp. 2", Retitricolpites "sp. 5", Retitricolpites "sp. 1", Retitricolpites operculatus
Retitricolpites "sp. 3" Van der Hammen 1956
Retitricolpites "sp. 4" Van der Hammen 1956
Retitricolpites "sp. 2" Van der Hammen 1956
Retitricolpites "sp. 5" Van der Hammen 1956
Retitricolpites "sp. 1" Van der Hammen 1956
Triporites
  -
Triporites sp.
Triporites sp. Van der Hammen 1954
Equisetopsida
 Pinidae - Pinidae
Classopollis "lessthanthirty", Classopollis "greaterthanthirty", Classopollis spinosus
Galeacornea causea
  -
Galeacornea causea
Galeacornea causea Stover 1963 elaterate
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
Ginkgoopsida
 Ephedrales -
Ephedripites brasiliensis, Ephedripites "sp. 1", Ephedripites "sp. 10", Ephedripites "sp. 2", Ephedripites "sp. 3", Ephedripites "sp. 4", Ephedripites "sp. 5", Ephedripites "sp. 6", Ephedripites "sp. 9", Ephedripites barghorrrnii, Ephedripites "sp. 11", Ephedripites "sp. 7", Ephedripites "sp. 8", Ephedripites barghoornii, Ephedripites jansonii
Ephedripites "sp. 1" Bolkhovitina and Potonié 1958
Ephedripites "sp. 10" 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. 9" Bolkhovitina and Potonié 1958
Ephedripites "sp. 11" Bolkhovitina and Potonié 1958
Ephedripites "sp. 7" Bolkhovitina and Potonié 1958
Ephedripites "sp. 8" Bolkhovitina and Potonié 1958
Ephedripites jansonii Muller 1968
Angiospermae
 Austrobaileyales - Trimeniaceae
Cretacaeiporites scabratus, Cretacaeiporites polygonalis, Cretacaeiporites mulleri
Cretacaeiporites mulleri Herngreen 1973
  -
Retimonocolpites sp., Afropollis jardinus
Afropollis jardinus Doyle et al. 1982
Dicotyledoneae
  -
Stephanocolpites sp., Triorites sp., Triorites africaensis
Stephanocolpites sp. Van der Hammen 1954
Triorites sp. Couper 1953
Varia
Triorites africaensis Jardiné and Magloire 1965
Angiospermae
  -
Monosulcites sp.
Monosulcites sp. Cookson and Couper 1953
 Gunnerales -
Tricolpites indet.
Tricolpites indet. Couper 1953
 Buxales - Didymelaceae
Hexaporotricolpites lamellaferus
Hexaporotricolpites lamellaferus Jardiné 1972
Incertae sedis sp. 1 Incertae sedis sp. 2
Lycopodiopsida
 Lycopodiales - Lycopodiaceae
Lycopodiumsporites sp.
Lycopodiumsporites sp. Delcourt and Sprumont 1955 clubmoss
Retitriporites
  -
Retitriporites sp.
Retitriporites sp. Ramanujam 1966
Polypodiopsida
 Schizaeales - Polypodiidae
Cicatricosisporites sp., Cicatricosisporites mohroides, 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
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
Scabramonocolpites
  -
Scabramonocolpites sp.
Striatricolpites
  -
Striatricolpites "sp. 1", Striatricolpites "sp. 2"
Striatricolpites "sp. 1" Van der Hammen 1956
Striatricolpites "sp. 2" Van der Hammen 1956
Foraminifera
 Foraminifera -
Foraminifera indet.
Elateropollenites jardinei
  -
Elateropollenites jardinei
Elateropollenites jardinei Herngreen 1973 elaterate
Senegalosporites
  -
Senegalosporites petrobrasi
Senegalosporites petrobrasi Herngreen 1973 elaterate
Perotriletes pannuceus
  -
Perotriletes pannuceus
Reyrea polymorphus
  -
Reyrea polymorphus
Reyrea polymorphus Herngreen 1973
Chomotriletes
  -
Chomotriletes sp.
Chomotriletes sp. Naumova 1953