Bajocian

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In the geologic timescale, the Bajocian is an age of the Middle Jurassic epoch of the Jurassic period of the Mesozoic era of the Phanerozoic eon. It lasted from approximately 171.6 Ma to around 167.7 Ma (million years ago). The Bajocian age succeeds the Aalenian age and precedes the Bathonian age, all in the same epoch.

The stage takes its name from the town of Bayeux, in the region of Normandy in France.

Contents 1 Vertebrate Fauna 1.1 Thalattosuchians 1.2 Dinosauria 1.3 Plesiosauria 2 Invertebrate Fauna 2.1 Ammonitida 2.2 Belemnites 2.3 Nautiloids 3 Flora 4 References 5 External links

[edit] Vertebrate Fauna

[edit] Thalattosuchians

Please help improve this article or section by expanding it. Further information might be found on the talk page. (April 2008)

Thalattosuchians of the Bajocian
Taxa	Presence	Location	Description	Images
Metriorhynchus			An opportunistic carnivore that fed on fish, belemnites and other marine animals and possible carrion. Metriorhynchus grew to an average adult length of 3 meters (9.6 feet), although some individuals may have reached lengths rivaling those of large nile crocodiles.	A life restoration of a Metriorhynchus species. Teleidosaurus
Steneosaurus
Teleosaurus
Teleidosaurus			The most plesiomorphic known metriorhynchid.

[edit] Dinosauria

Rhoetosaurus, Ozraptor, Yunnanosaurus

[edit] Plesiosauria

Simolestes keileni, Maresaurus Coccai

[edit] Invertebrate Fauna

[edit] Ammonitida

Please help improve this article or section by expanding it. Further information might be found on the talk page. (April 2008)

†Ammonitids of the Bajocian
Taxa	Presence	Location	Description	Images
†Alfeldites	Confirmed.[1]		The only known species in this Alaskan genus. Abbasites is believed to be ancestral to the ammonite family Otoitidae.	Life restorations of two different ammonite genera.
†Apsorroceras	Confirmed.[1]		The
†Asphinctites	Confirmed.[1]
†Asthenoceras	Confirmed.[1]		The
†Bigotites	Confirmed.[1]		The
†Bradfordia	Confirmed.[1]
†Cadomites	Confirmed.[1]
†Cadomoceras	Confirmed.[1]
†Caumontisphinctes	Confirmed.[1]
†Chondroceras	Confirmed.[1]
†Cleistosphinctes	Confirmed.[1]
†Cranocephalites	Confirmed.[1]
†Darellia	Confirmed.[1]
†Dimorphinites	Confirmed.[1]
†Diplesioceras	Confirmed.[1]
†Docidoceras	Confirmed.[1]
†Dorsetensia	Confirmed.[1]
†Durotrigensia	Confirmed.[1]
†Duashnoceras	Confirmed.[1]
†Emileia	Confirmed.[1]
†Eocephalites	Confirmed.[1]
†Epistrenoceras	Confirmed.[1]
†Ermoceras	Confirmed.[1]
†Euaptetoceras	Confirmed.[1]
†Eudmetoceras	Confirmed.[1]
†Euhoploceras	Confirmed.[1]
†Fissilobiceras	Confirmed.[1]
†Fontannesia	Confirmed.[1]
†Frogdenites	Confirmed.[1]
†Garantiana	Confirmed.[1]
†Guhsania	Confirmed.[1]
†Graphoceras	Confirmed.[1]
†Haplopleuroceras	Confirmed.[1]
†Hebetoxyites	Confirmed.[1]
†Hlawiceras	Confirmed.[1]
†Hyperlioceras	Confirmed.[1]
†Kosmermoceras	Confirmed.[1]
†Kumatostephanus	Confirmed.[1]
†Labyrinthoceras	Confirmed.[1]
†Leptosphinctes	Confirmed.[1]
†Lissoceras	Confirmed.[1]
†Lupherites	Confirmed.[1]
†Magharina	Confirmed.[1]
†Megasphaeroceras	Confirmed.[1]
†Metrolytoceras	Confirmed.[1]
†Nannolytoceras	Confirmed.[1]
†Newmarracarroceras	Confirmed.[1]
†Normannites	Confirmed.[1]
†Oecoptychius	Confirmed.[1]
†Oecotraustes	Confirmed.[1]
†Okribites	Confirmed.[1]
†Oppelia	Confirmed.[1]
†Orthogarantiana	Confirmed.[1]
†Otoites	Confirmed.[1]
†Oxycerites	Confirmed.[1]
†Padragosiceras	Confirmed.[1]
†Parastrenoceras	Confirmed.[1]
†Parkinsonia	Confirmed.[1]
†Phaulostephanus	Confirmed.[1]
†Poecilomorphus	Confirmed.[1]
†Praebigotites	Confirmed.[1]
†Praeparkinsonia	Confirmed.[1]
†Praestrigites	Confirmed.[1]
†Procerites	Confirmed.[1]
†Prorsisphinctes	Confirmed.[1]
†Protoecotrausites	Confirmed.[1]
†Pseudogarantiana	Confirmed.[1]
†Pseudotoites	Confirmed.[1]
†Reynesella	Confirmed.[1]
†Shirbuirnia	Confirmed.[1]
†Siemiradzkia	Confirmed.[1]
†Skirroceras	Confirmed.[1]
†Skolekostephanus	Confirmed.[1]
†Sohlites	Confirmed.[1]
†Sonninia	Confirmed.[1]
†Sphaeroceras	Confirmed.[1]
†Spinammatoceras	Confirmed.[1]
†Spiroceras	Confirmed.[1]
†Stegoxyites	Confirmed.[1]
†Stemmatoceras	Confirmed.[1]
†Strenoceras	Confirmed.[1]
†Strigoceras	Confirmed.[1]
†Subcollina	Confirmed.[1]
†Telermoceras	Confirmed.[1]
†Teloceras	Confirmed.[1]
†Thamboceras	Confirmed.[1]
†Toxamblyites	Confirmed.[1]
†Toxolioceras	Confirmed.[1]
†Trilobiticeras	Confirmed.[1]
†Trimarginia	Confirmed.[1]
†Tugurites	Confirmed.[1]
†Vermisphinctes	Confirmed.[1]
†Witchellia	Confirmed.[1]
†Zemistephanus	Confirmed.[1]
†Zurcheria	Confirmed.[1]

[edit] Belemnites

Please help improve this article or section by expanding it. Further information might be found on the talk page. (April 2008)

Belemnites of the Aalenian
Taxa	Presence	Location	Description	Images
Belemnitina	Confirmed.[1]			Belemnites
Hibolites	Confirmed.[1]
Holcobelus	Confirmed.[1]
Produvalia	Confirmed.[1]
Sachsibelus	Confirmed.[1]

[edit] Nautiloids

Please help improve this article or section by expanding it. Further information might be found on the talk page. (April 2008)

Nautiloids of the Bajocian
Taxa	Presence	Location	Description	Images
Ophionautilus	Confirmed.[1]			An illustration of a variety of fossil nautiloids.
Somalinautilus	Confirmed.[1]

[edit] Flora

[edit] References

1. ^ ^{a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq br bs bt bu bv bw bx by bz ca cb cc cd ce cf cg ch ci cj ck cl cm cn co cp cq cr cs ct cu cv cw cx} Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (entry on cephalopoda)". Bulletins of American Paleontology 364: p.560. http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=231&rank=class. 

[edit] External links

Jurassic period
Lower/Early Jurassic	Middle Jurassic	Upper/Late Jurassic
Hettangian | Sinemurian Pliensbachian | Toarcian	Aalenian | Bajocian Bathonian | Callovian	Oxfordian | Kimmeridgian Tithonian