Borehole 1-QS-1-MA, Sample 6: Late/Upper Albian - Early/Lower Cenomanian, Brazil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Araucariacidites australis
10 specimens
Hexapororicolpites emilianovi
Psilatrilestes sp.
Sofreipites legouxae
Tetradites sp. Van der Hammen 1954
1 specimen
Tricolpates informal div. 1 sp.
Foraminifera indet. Eichwald 1830
56 specimens
Lycopodiopsida - Lycopodiales - Lycopodiaceae
Lycopodiumsporites sp. Delcourt and Sprumont 1955
unclassified
Galeacornea causea Stover 1963
11 specimens
Angiospermae - Buxales - Didymelaceae
Hexaporotricolpites lamellaferus Jardiné 1972
Angiospermae - Gunnerales
Tricolpites indet. Couper 1953
Angiospermae - Austrobaileyales - Trimeniaceae
Cretacaeiporites scabratus Herngreen 1974
9 specimens
Cretacaeiporites mulleri Herngreen 1973
Angiospermae
Triorites sp. Couper 1953
Triorites africaensis Jardiné and Magloire 1965
Stephanocolpites sp. Van der Hammen 1954
Monosulcites sp. Cookson and Couper 1953
Reticulatasporites jardinus
    = Afropollis jardinus Doyle et al. 1982
Saad 1978
Retimonocolpites sp. Pierce 1961
unclassified
Triporites sp. Van der Hammen 1954
Psilatricolpites informal sp. 1 Van der Hammen and Wijmstra 1964
Psilatricolpites informal sp. 2 Van der Hammen and Wijmstra 1964
Psilatricolpites informal sp. 3 Van der Hammen and Wijmstra 1964
Psilatricolpites spp.
Retitricolpites informal sp. 1 Van der Hammen 1956
8 specimens
Retitricolpites informal sp. 2 Van der Hammen 1956
Retitricolpites informal sp. 3 Van der Hammen 1956
Retitricolpites informal sp. 4 Van der Hammen 1956
2 specimens
Retitricolpites informal sp. 5 Van der Hammen 1956
Retitricolpites operculatus Herngreen 1973
8 specimens
Equisetopsida - Cheirolepidiaceae
Classopollis informal greaterthanthirty
254 specimens
Classopollis informal lessthanthirty
Classopollis spinosus
unclassified
Scabramonocolpites sp. Mathur 1966
Verrutriletes informal sp. 1 Pierce 1961
1 specimen
Verrutriletes informal sp. 2 Pierce 1961
Verrutriletes informal sp. 3 Pierce 1961
Verrutriletes informal sp. 4 Pierce 1961
2 specimens
Striatricolpites informal sp. 1 Van der Hammen 1956
nomen nudum belonging to Plantae
Striatricolpites informal sp. 2 Van der Hammen 1956
nomen nudum belonging to Plantae
Cycadopsida - Gnetales
Steevesipollenites multilineatus Stover 1964
Steevesipollenites binodosus Stover 1964
1 specimen
Elaterosporites klaszi Jardiné 1967
1 specimen
Elaterosporites protensus Jardiné 1967
Elaterosporites verrucatus Jardiné 1967
Elaterocolpites castelani Herngreen 1973
2 specimens
Cycadopsida - Cycadales
Eucommiidites sp. Erdtman 1948
Ginkgoopsida - Ephedrales
Ephedripites barghorrrnii
2 specimens
Ephedripites brasiliensis
Ephedripites informal sp. 1 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 10 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 11 Bolkhovitina and Potonié 1958
1 specimen
Ephedripites informal sp. 2 Bolkhovitina and Potonié 1958
10 specimens
Ephedripites informal sp. 3 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 4 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 5 Bolkhovitina and Potonié 1958
2 specimens
Ephedripites informal sp. 6 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 7 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 8 Bolkhovitina and Potonié 1958
Ephedripites informal sp. 9 Bolkhovitina and Potonié 1958
2 specimens
Ephedripites jansonii Muller 1968
unclassified
Retitriporites sp. Ramanujam 1966
Polypodiopsida - Schizaeales - Schizaeaceae
Klukisporites sp. Couper 1958
Cicatricosisporites mohroides
Cicatricosisporites sp. Potonie and Gelletich 1933
1 specimen
Cicatricosisporites hallei Delcourt and Sprumont 1955
Pteridopsida
Osmundacidites cf. primarius
Cyathidites sp. Couper 1953
unclassified
Perotriletes pannuceus Brenner 1963
Elateropollenites jardinei Herngreen 1973
Reyrea polymorphus Herngreen 1973
Chomotriletes sp. Naumova 1953
Senegalosporites petrobrasi Herngreen 1973
see common names

Geography
Country:Brazil State/province:Maranhao County:Primeur a Cruz, Queimadas
Coordinates: 3.7° South, 44.6° West (view map)
Paleocoordinates:10.9° South, 18.9° West
Time
Period:Cretaceous
Key time interval:Late/Upper Albian - Early/Lower Cenomanian
Age range of interval:106.20000 - 93.90000 m.y. ago
Stratigraphy
Formation:Queimadas
Local section:Queimadas Local bed:713-714 m
Local order:top to bottom
Lithology and environment
Primary lithology: lithified argillaceous sandstone
Secondary lithology: lithified "shale"
Lithology description: 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
Environment:deltaic indet.
Taphonomy
Modes of preservation:soft parts,original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection methods:chemical,hydrochloric,hydroflouric,sieve
Reason for describing collection:biostratigraphic analysis
Metadata
Also known as:Barreninhas Basin
Database number:142277
Authorizer:C. Jaramillo Enterer:G. Doria
Research group:paleobotany
Created:2013-04-07 11:39:29 Last modified:2013-04-06 20:39:29
Access level:the public Released:2013-04-07 11:39:29
Creative Commons license:CC BY
Reference information

Primary reference:
43911. 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. Cárdenas]

Secondary references:

46914 S. I. Saad. 1978. Plynological studie in the Egyptian Western Desert: Umbarka IX Borehole. Pollen et Spores 20(2):261-301 [C. Jaramillo/G. Doria/A. Cárdenas]