The Early Toarcian Oceanic Anoxic Event (OAE), as defined by both relatively high total organic carbon (TOC) values and ammonite and nannofossil
biostratigraphy, is clearly synchronous across Europe and will undoubtedly prove to be so in global context .
These areas contain calcareous nannofossil
, planktonic foraminifera, and terrestrial pollen.
and that the Labrador Current became much stronger at that time; they based their conclusions on nannofossil
records of two deep-sea cores from the Labrador Sea.
(2013): The Bartonian-Priabonian marine record of the eastern South Pyrenean Foreland Basin (NE Spain): A new calibration of the larger foraminifers and calcareous nannofossil
The first occurrence of the calcareous nannofossil
Quadrum gartneri PRINS and PERCH-NIELSEN is the selected bioevent for the C-T boundary in the Menoyo section (Gorostidi and Lamolda, 1991; Lamolda and Peryt, 1998).
(2007): Calcareous nannofossil
biostratigraphy and correlation with ammonites zones of the Pliensbaquian-lowermost Toarcian (Lower Jurassic) of Peniche (Lusitanian Basin, Portugal).
(1995): Late Domerian-Toarcian calcareous nannofossil
biostratigraphy, benthic foraminiferal assemblages and their paleoenvironmental implications, Montebibico area (Spoleto, Central Italy).
Bown (ed): Calcareous nannofossil
(1999): The Bonarelli level and other black shales in the Cenomanian-Turonian of the northeastern dolomites (Italy): calcareous nannofossil
and foraminiferal data: Cretaceous Research, 20: 35-167.
In all holes studied it is recorded close to the last occurrence of the nannofossil
Pseudoemiliania lacunosa in the mid-Brunhes Subchron 0.5-0.6 Ma (Fig.
(1997): High-resolution iridium, [delta][sup.13]C, [delta][sup.18]O, foraminifera and nannofossil
profiles across the latest Paleocene benthic extinction event at Zumaya, Spain.