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Topic: Bajocian

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	Base of Bajocian Stratotype (Site not responding. Last check: 2007-11-03)
		The GSSP of the Bajocian Stage is located on the Portuguese Atlantic coast, 40km west of Coimbra and 7km north of Figueira da Foz.
		The Murtinheira Section is at the foot of Cabo Mondego cliff, south-west of the village of Murtinheira.
		The Aalenian — Bajocian Boundary is defined at 77.8m from the base of the section at the base of Bed AB 11.
	www.stratigraphy.org /bajocian.htm (244 words)

	Palaeos Mesozoic: Jurassic: The Bajocian Age
		The Bajocian Age was originally supposed to be the lowest one third of the "Oolite" (Middle Jurassic).
		As currently defined, the Bajocian begins at the level where the ammonite Hyperlioceras replaces the Aalenian Lioceras near the old lighthouse of Cabo Mondego, on the Atlantic coast of Portugal, not far from Figueira da Foz and the ancient (pre-Roman!) university town of Coimbra.
		The Bajocian marine transgression (a time when the sea rose to cover previously dry land) was the first step in the drowning of the marine carbonate platforms on which the corals grew.
	www.palaeos.com /Mesozoic/Jurassic/Bajocian.htm (1586 words)

	Bajocian chert of type Bj1 from the Bugey (Jura, France) on Flintsource.Net
		Bajocian chert of type Bj1 from the Bugey (Jura, France) on Flintsource.Net
		According to the geological map, the substrate belongs to unit J1a-b, Early Aalenian to Early-Middle Bajocian (Middle Jurassic).
		On the geological map, the parent rock is classified as J1a-b, Early Aalenian to Early-Middle Bajocian (Middle Jurassic).
	www.flintsource.net /flint/F_bugBj1.html (755 words)

	Bajocian flint of the Bj3-type from the Bugey (Jura, France) on Flintsource.Net
		Bajocian flint of the Bj3-type from the Bugey (Jura, France) on Flintsource.Net
		According to the geological map, the substrate belongs to the unit Rs, these clays-with-flints are residual loams from the weathering of Early to Middle Bajocian limestones containing flint.
		The underground at the sampling-site is a clay-with-flints which resulted from the decalcification of several flint-bearing formations dating to the Bajocian and Bathonian (units J1a-b and J1c from the Bajocian and J2 from the Bathonian).
	www.flintsource.net /flint/F_bugBj3.html (1411 words)

	SedStrat Bremen
		A major unconformity, which is overlain by Early Bajocian sediments, marks the end of this early syn-breakup phase, and is followed by post-breakup deposits of the drift phase.
		An Early Bajocian transgression overstepped the rift flank of the breakup eastwards far inland and covered Toarcian-Aalenian syn-breakup rift strata and extensive parts of the pre-breakup Karoo strata.
		Facies maps suggest a basinwide occurrence of the Bajocian carbonate platform, whereas in contrast a pure siliciclastic environment is present during the Oxfordian.
	www.geo.uni-bremen.de /geochronologie/projects/Markus_madagaskar.htm (1169 words)

	Burton Bradstock - Geology Field Trip Guide
		Complemented by study of the inferior Bajocian and of the Aalenian/Bajocian boundary present in the same quarry, this section stands out as a standard for future reference complementary to the historical stratotype at Sainte-Honorine-des-Pertes near Bayeux (d'Orbigny, 1849-1852).
		Penn, I.E., Dingwall, R.G. and Knox, O'B. The Inferior Oolite (Bajocian) sequence from a borehole in Lyme Bay, Dorset.
		Bajocian dinocyst, sporomorph, coccolithophorid, foraminiferal and ostracod assemblages are related to the ammonite zones and subzones for the first time.
	www.soton.ac.uk /~imw/burton.htm (5335 words)

	TUD :
		Dinoflagellate cysts, palynofacies and sedimentology are studied from Bajocian key sections in North- and South-Germany, Switzerland, England and France.
		Main focus is the detailed morphological analysis and systematic description of the dinoflagellate cysts in order to depict their evolutionary trends during the Bajocian.
		In combination with sedimentological studies as well as palynofacies and sequence analysis, it is attempted to elucidate the explosion-like diversification of dinoflagellate cysts during the Bajocian.
	www.iag.tu-darmstadt.de /fg/sediment/paly/palyres1.tud (176 words)

	Abstract (Site not responding. Last check: 2007-11-03)
		Sediments that were deposited in the Bajocian sea are included in the Gypsum Spring Formation (Johnson, 1991).
		After the Gypsum Spring sea retreated in the early middle Bajocian, a period of erosion began throughout the Western Interior that is now represented by the J-2 unconformity (Fig.
		After the Gypsum Spring sea retreated in the early middle Bajocian, a period of erosion began throughout the Western Interior that is now represented by the J-2 unconformity (Fig.1).
	www.usd.edu /~skfannin/sundance.htm (3310 words)

	Image catalog, Bajocian to Oxfordian palynology of the Poland
		Bajocian to Oxfordian palynology of the Polish Jurassic
		The Upper Bajocian - Bathonian organic-rich claystones succession, and the Lower Callovian sandy, marly and gaize (dispersed biogenic silica) deposits of central-southern Poland, yields diverse and well-preserved dinoflagellate cyst floras dominated by ctenidodinioids, principally Ctenidodinium combazii and Dichadogonyaulax sellwoodii together with Korystocysta spp., but also Atopodinium and Wanaea spp.
		The stratigraphical distribution of dinoflagellate cysts within the Upper Bajocian - Bathonian - Lower Callovian has provided a detailed correlation between the Polish Submediterranean Province (northern Tethyan realm) and the Subboreal Province of the North Sea area (chronostratigraphy and dinoflagellate zonation).
	www.geus.dk /departments/environ-hist-climate/image-cat/dinofl-pol-jur/pal-cat1.htm (410 words)

	Amazon.com: "Late Bajocian": Key Phrase page (Site not responding. Last check: 2007-11-03)
		Based on fossil populations well located in space and time, the disparity of the cassiduloid genus Nucleolites from the Late Bajocian to the Late Oxfordian of the Paris Basin is described.
		To the west, bioclastic (mainly crinoidal) limestones formed in the Late Bajocian.
		Post-breakup unconformities are of Toarcian (Domerian) and of late Bajocian- Bathonian age.
	www.amazon.com /phrase/Late-Bajocian (539 words)

	MUSEUM D'HISTOIRE NATURELLE DE LA VILLE DE GENEVE: Revue de paléobiologie: Abstracts Vol. spécial 8 2000
		The Podagrosiceratinae (Ammonitida) in theUpper Toarcian-Lower Bajocian (Jurassic) of Argentina
		The Parkinsoni Zone (Upper Bajocian) and the lowermost Zigzag Zone (Lower Bathonian) established for NW Europe areas can be identified in the Catalan and Iberian basins (Spain), although the ammonite fossil assemblages are composed by Submediterranean taxa.
		Since the Late Bajocian the North-East of Russia was part of the Arctic Province or Subrealm.
	www.ville-ge.ch /musinfo/mhng/page/pal800abs.htm (2651 words)

	LOWER BAJOCIAN AMMONITES
		This is an amazing decorator display fossil as much as it would be an unusual and rare addition to any advanced ammonite collection.
		These species are found together in the Middle Jurassic Bajocian sediments of the Central High Atlas mountains in Morocco.
		Each ammonite is of a very high quality with rare shell detail as well as full inflation with no distortion.
	www.paleodirect.com /amx-066.htm (514 words)

	Allister Rees Abstracts
		Through parts of the Ravenscar Group (the Scarborough Formation), supplementary data from bulk organic carbon and palynofacies analysis confirm that isotopic curves based on bulk analyses may be strongly influenced by the balance of terrestrial versus marine organic matter present in the samples.
		Paradoxically, floral assemblages associated with the lithological unit in which the negative excursion occurs display characteristics that would normally be interpreted as adaptations to water stress brought about by relative aridity or salinity.
		The sharp negative excursion is associated with an apparently abrupt change from charcoal to coal as the dominant mode of preservation in the succession.
	www.geo.arizona.edu /~rees/PGAPabstracts.html (6849 words)

	Aalenian - Bajocian - GCR block
		The GCR sites selected for this GCR Block represent the British geological record of Earth history from about 178 to 166 million years ago (Ma).
		The Aalenian (178—174 Ma) and Bajocian (174—166 Ma) strata are included in one GCR Block together because they are commonly closely associated in general lithology — over much of southern England they approximately equate with the old stratal term, ‘Inferior Oolite’.
		On maps showing the solid geology of England, Middle Jurassic rocks crop out in an almost continuous strip from the Dorset coast to the North Yorkshire coast.
	www.jncc.gov.uk /earthheritage/gcrdb/GCRblock.asp?block=1 (675 words)

	Bajocian ammonites collected by Sir Henry Hayden near Kampadzong, Tibet -- Arkell 90 (5): 331 -- Geological Magazine
		Bajocian ammonites collected by Sir Henry Hayden near Kampadzong, Tibet -- Arkell 90 (5): 331 -- Geological Magazine
		Bajocian ammonites collected by Sir Henry Hayden near Kampadzong, Tibet
		The age is middle Bajocian (Jurassic), with only the Sowerbyi and Sauzei zones present, from which it is inferred that the formation here represents a condensed deposit.
	geolmag.geoscienceworld.org /cgi/content/abstract/90/5/331 (114 words)

	Westermann-Bajocian Ammonitina of New Zealand
		Abstract A relatively rich, previously unknown fauna of Ammonitina is described from the Bajocian of southwest Auckland.
		However, stratigraphic evidence together with the bivalve index Retroceramus marwicki clearly date the Waikatoceratinae fauna as mostly post-Humphriesianum Chron (i.e., early Late Bajocian).
		The presence of Toxamblyites in this fauna suggests that its range was one chron longer in the Southwest Pacific than in Eurafrica--unless the fragmented specimens were reworked, which is considered unlikely.
	www.rsnz.org /publish/nzjgg/2000/3.php (245 words)

	115abst
		The dominance of thin-shelled pelecypods of the genus Bositra is typical of the ammonitico rosso-type deposits of late Middle Jurassic age in the study area.
		The latter, possibly induced by the tectonic factors, resulted mostly from a marked change in oceanic circulation in the northern part of the Tethys, at the turn of the Callovian and Oxfordian.
		In the paleontological part of the paper, the most important ammonite and brachiopod species, mostly of Late Bajocian and Bathonian ages, are described and illustrated.
	www.ing.pan.pl /stud4www/115abst.html (1080 words)

	Stratigraphic Framework for Microbial Buildups in the Middle Jurassic (Bajocian and Bathonian), Bighorn Basin, Wyoming (Site not responding. Last check: 2007-11-03)
		Stratigraphic Framework for Microbial Buildups in the Middle Jurassic (Bajocian and Bathonian), Bighorn Basin, Wyoming
		During the 2002 field season, well-exposed outcrops of thrombolite buildups were discovered several miles east-southeast of Cedar Mountain in the Middle Jurassic strata of Bajocian and Bathonian age.
		These are some of the earliest known worldwide occurrence of Jurassic thrombolite reefs.
	aapg.confex.com /aapg/da2004/techprogram/A85873.htm (309 words)

	Jura - field trips
		The trip will demonstrate the biostratigraphical and sedimentological problems of the Middle Jurassic (Bajocian to Callovian), and Oxfordian deposits, with localities rich in fossils, in the Polish Jura Chain between Kraków, Częstochowa and Wieluń.
		The Bajocian and Bathonian fl clays cropped out in clay-pits at Częstochowa yield abundant and well preserved fauna including ammonites and rich microfaunal assemblages (from the uppermost Bajocian up to the Upper Bathonian).
		Varied highly condensed to partly non-condensed Callovian deposits, well characterized by micro- and macrofossils will be also visited in quarries in Kraków Upland and in Częstochowa Upland.
	www.ing.pan.pl /jura/trips.htm (1022 words)

	András Galácz
		Dissertation: "Bajocian and Bathonian ammonites and stratigraphy of Gyenespuszta, Bakony Mts, Transdanubian Central Range"
		GALÁCZ, A. (1980): Bajocian and Bathonian ammonites of Gyenespuszta, Bakony Mts., Hungary - Geol.Hung., Ser.Palaeont., 39, 1-227, Budapest.
		GALÁCZ, A. (1991): Bajocian stephanoceratid ammonites from the Bakony Mountains, Hungary - Palaeontology, 34/4, 859-885, London.
	iris.elte.hu /geo/aaa/dep/paleo/galacz.htm (682 words)

	STRATIGRAPHIC RELATIONSHIPS WITHIN THE MIDDLE JURASSIC (BAJOCIAN AND BATHONIAN), BIGHORN BASIN, WYOMING AND MONTANA
		Of primary interest is the depositional history and lithostratigraphy of the Bajocian and Bathonian Piper and Gypsum Spring Formations.
		The Piper and Gypsum Spring Formations are lithologically similar and both contain Middle Jurassic fauna; however, physical correlation of these units has not been clarified.
		All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.
	gsa.confex.com /gsa/2003AM/finalprogram/abstract_62492.htm (358 words)

	title index to PDNHAS, letter B (Site not responding. Last check: 2007-11-03)
		Bajocian (Middle Jurassic) at Horn Park, Dorset, UK A further examination of the Subfurcatum Zone (Middle Jurassic; Upper
		(Bajocian stage, Middle Jurassic) near Clatcombe, Sherborne, with a description of temporary sections
		Beds Limestones of the Upper Inferior Oolite (Middle Jurassic; Upper Bajocian) of north Dorset
	www.dor-mus.demon.co.uk /tB.html (1092 words)

	[No title]
		The Inferior Oolite (Bajocian) Sequence from a Borehole in Lyme Bay, Dorset (IGS Reports) I.e.
		The Inferior Oolite (Bajocian) Sequence from a Borehole in Lyme Bay, Dorset (IGS Reports)
		Please wait while we find you the best price for The Inferior Oolite (Bajocian) Sequence from a Borehole in Lyme Bay, Dorset (IGS Reports), this should take no more than 30 seconds.
	www.bookhead.co.uk /0118840983.aspx (78 words)

	Middle Jurassic (Bajocian and Bathonian) Dinosaur Megatracksites, Bighorn Basin, Wyoming, U.S.A -- KVALE et al. 16 (3): ...
		Middle Jurassic (Bajocian and Bathonian) Dinosaur Megatracksites, Bighorn Basin, Wyoming, U.S.A -- KVALE et al.
		Middle Jurassic (Bajocian and Bathonian) Dinosaur Megatracksites, Bighorn Basin, Wyoming, U.S.A
		ALLEN W. Department of Geological Sciences, Indiana Geological Survey, Indiana University, Bloomington, IN 46405
	palaios.sepmonline.org /cgi/content/abstract/16/3/233 (372 words)

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