Also known as Barreirinhas (BA) Borehole
Where: Barreirinhas, Brazil (2.8° S, 42.8° W: paleocoordinates 9.6° S, 17.7° W)
• coordinate stated in text
When: Zone III pollen zone, Humberto Campos Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)
Environment/lithology: terrestrial; lithified, argillaceous shale and lithified, argillaceous limestone
Size class: microfossils
Preservation: soft parts, original sporopollenin
Collection methods: chemical, hydrochloric, hydroflouric, sieve
Primary reference: G. F. W. Herngreen. 1975. Palynology of the Middle and Upper Cretaceous strata in Brazil. Medelingen Rijks Geologische Dienst, Nieuwe Serie 26:39-91 [C. Jaramillo/G. Doria/A. Cardenas ]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 144292: authorized by Carlos Jaramillo, entered by Gabriela Doria on 03.05.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Magnoliopsida | |
|
Psilatricolporites sp. Pierce 1961 | |
| Angiospermae | |
|
Cretacaeiporites scabratus Herngreen 1974
Cretacaeiporites muellerii Herngreen 1973
Cretacaeiporites polygonalis Herngreen 1974 | |
|
Retimonocolpites sp. Pierce 1961 | |
| Ginkgoopsida | |
|
Ephedripites "straight ridges" Bolkhovitina and Potonié 1958 | |
| Cycadopsida | |
|
Steevesipollenites binodosus Stover 1964 cycads | |
| Galeacornea causea | |
|
| |
| Elateroplicites africaensis | |
|
Elateroplicites africaensis Herngreen 1973 elaterate | |