Bathonian


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Bathonian

[bə′thōn·ē·ən]
(geology)
A European stage of geologic time: Middle Jurassic, below Callovian, above Bajocian. Also known as Bathian.
References in periodicals archive ?
Based on biostratigraphic data from the lowest bed lying over the unconformity, the age of the unconformity itself gradually becomes slightly younger southwards (starting from NE Sardinia, there are early Bathonian fossils in marine deposits - Dieni and Massari, 1985b - of the Usassai-Perdasdefogu lithofacies of the Genna Selole Fm directly laying over the Variscan basement; ending in SE Sardinia, where the Bajocian-Bathonian plant remains - Del Rio, 1976, 1984 - in the intermediate palustrine deposits of the Nurri-Escalaplano lithofacies of the Genna Selole Fm are located at least 30 m above the unconformity).
Log analysis of the formation below the Bathonian suggests an active aquifer below the structure.
Fine biostratigraphical data show that, except a possible gap in Bathonian, they deposited continuously from Bajocian to Cenomanian (Denyer & Baumgartner, 2006).
Our favorite paper was the presentation on the E-WOK project which showed how semantic tagging of an existing document library enables queries such as 'What diagenesis has affected the Bathonian of the Paris Basin?
The Puig d'en Pare Formation contains at its base, highly bioturbated nodular limestones that contain reelaborated ammonites from the late Bajocian (Parkinsoni Zone) to the early Bathonian.
The age was poorly known (Hunt, 1994), however, in the Bathonian.
Callovian-Oxfordian TOC-rich deposits have been reported for the Late Callovian-Early Oxfordian (Price and Grocke, 2002) and one record of marine black shales deposited from the Late Bathonian to the Volgian (Bausch et al, 1998).
Cteniogenys is a small, probably amphibious, choristodere from the Bathonian of England (e.