Ammonites Founa from the Dalichai Formation in Shirvan Shahi Area in Southern Maragheh City Zahra Orak*Kazem Seyed-Emami

Home , Cadomites

* Ammonites founa from the Dalichai Formation in Shirvan shahi area in southern Maragheh city Zahra Orak*Kazem Seyed-Emami

( ) ( ) ( ) . .

,Stephanoceratidae,Oppeliidae,Haploceratidae,Phyloceratidae,Perisphinctidae, Parkinsonidea, Tulitidae,Morphoceratidae , . Reineckeiidae ,Peltoceratidae

. Zigzag Parkinsonia .

_ _ - _ _ : _ _( _ )

Abstract

The Dalichai Formation has a thickness of 203 m in Shirvanshahi area, approximately 34 km southern Margheh city.This Formation consists of alternation of siltestones, grey limestones and marls.Its both contacts are gradational with the underlying (Shemshak Formation)and overlying,(Lar Formation)formations.Dalichai Formation can be divided into 4 members which contain ammonite fauna abundant .The members of 1-2 contain ammonite spicies belonging to familysuch as,Stephanoceratidae,Oppeliidae,Haploceratidae,Phyloceratidae,Perisphinctid ae, Parkinsonidea, Tulitidae and Morphoceratidae whereas the upper members (3-4) include the genera and species of two family Reineckeiidae and

Peltoceratidae. Based on stratigraphic distribution of amonnite species seven local biozones were established throughout the Dalichai Formation, suggesting Late Bajocian- Late Callovian. Amongst the encountered biozones,the two ammonite biozones of Parkinsonia and Zigzag are important which are quite similar with those of western Europe and Centeral Eatern Alborz, indicating the relationship of studied area to the Submediterranean province..

_ - -_ _- . ) .( ( ) ( ) . . . . ( ) . . . : ( ) . .( ) ( ) ( ) . .

/ . .

. / . . : Parkinsonia parkinsoni, Parkinsonia radiate, Parkinsonia dorni, Parkinsonia Parkinsoni, Parkinsonia cf racostata, Parkinsonia cf.schlornbachi, Parkinsonia,

Garantiana(garantiana)dubia, Garantiana(pseudogarantiana)aff.minima, Parkinsonia : . Procerites(procerites)cf.laeviplex,Oxyceritex yeovilensis, Lissoceras psilodiscus, Oxyceritex seebachi, Oxyceritex limosus, cadomites(cadomites)cf.deslogchampsi ,lissoceras psilodiscus, Cadomitescf.claromontanus,Cadomites(polytplectis)dorni, Leptosphinctes(Cleistophintes)cf.cleistus Morphoceratidae, Stephanoceratidae . Zigzag

. Macrocephalites( Macrocephalites ) jacquoti Hecticoceras aff. Reinckia sp. Bullatimorphites(Kheraiceras)cf.bullatus . Lunuloides . : -

. . - -

. - . . Phyloceratida Perisphinctidae ( ) _ . : . Refrences Galcz,a ,1995-Ammonite stratigraphy of the bathonian red Limestone of the Mecsek MtsmSouth Hungray:111-225,pl.6.Budest. Pavia,G.197-Ammonite del Bajocian Superiore di Diny (Franica SE,DIP Basses- Alps) Bollettino della societa Paleontologica Italian 10:75- 142,8fig.pls;Torino Seyed-Emami,K.SCHIRER,& BOLOURCHI,M.H,1985,Ammoniten aus der unteren Dalichai Formation (oberes Bajocian bis unteres Bathonian) der umgebung von Abe garm(Avaj,NW-Zenteraliran)-Zitteliana12:57-85,5pls:Munchen. Seyed-Emami,K.SCHIRER,& Alavi-Naini,M.1989-Ammoniten aus der unteren Dalichai Formation(unterbathon);ostlchi von Semnan(SE-Alborz,IRAN)-Munchner Gewissenschaftllich Abhadlunge A15;79-91,4fig,3pl.Muchen Seyed-Emami,K.(1988);Enie Ammoniten-fauna aus der Badamu Formation(Unterbajocian,sauzei-zone)westlich von Kerman.palaont.z, 62(1-2):71-86. Seyed-Emami,K.& Alavi-Naini,M.(1990):Bajocian stage in Iran Memorie Decriptive Della Carta Geologica DItalia:40:pp215-221 ,3figs:Rome. Seyed-Emami,K.&Schairer,G.&Behroozi,A.(1994):EinigeAmmoniten aus der Kashashafrud Formation (mittlerer Jura)E Mashhad (NE-Iran)- mitt.Bayar.Staatsslg.Paleont.Hist.Geol ,34:pp.145-158,4figs, 1 pl.1 tab,Munich. Seyed-Emami,K.SCHIRER,G,& Zeiss ,A(1995):Ammoniten aus der Dalichai Formation (Mittlerer bisoberer Jura)und der lar Formation (oberer Jura)N Emamzadeh Hashem(Zenteralalborz,Nordiran).Mitt.Bayer.Staatsslg.paleont.hist.Geol,35:39- 52,lab,4Tab,2taf:Munchen. Seyed-Emami,K.SCHIRER,G.,Behroozi,A(1996),Ammoniten aus der oderer Bajoc(Mittlerer Jura)des SE-Koppeh dagh und Alborz(NE Iran)Mitt.Bayer.Staatsslg.paleont.hist.Geol.36:87-106,6Abb,1tab ,3,taf:Munchen. Seyed-Emami,K&.SCHIRER,G.&Mohammadi-Monfared.M(1998):Ammoniten aus der oberer jurades Nordian,MittBayer.Staatsslg.Palaontohist.Geol vol 38 ,14p. Seyed-Emami,K&.SCHIRER,G.&Majidifard.M(1999):First record of lower Tithoian in KoppehDagh. NEIran).Mitt.Bayer.staatslg.paleont.hist.geol.39:21-32-5abb, 2taf:MUNCHEN. Seyed-Emami,K&.SCHIRER,G.& Babasenobari-Daryan,Aghanabati,A Seyed-Emami,K&Fursich,F.T&Schairer,G(2001);Lithostatigraphy,ammonite fauna and palaeoenvironmentsof Middel Jurassicstratain north and centeral IraN- Newsletters on Stratigraphy38:163-184,11figs;Stuttgart.

Plate1-2

Fig1,4:Oxycerites seebachi Fig 2:Cadomites (Polyplectis) bozorginiai Fig3: (Oecotraustes) westermani Fig5: Oxycerites limosus Fig6:Oxycerites yeovilensis Fig7a,b: Lissoceras psilodiscus Fig8:Parkinsonia dorni Fig9:Parkinsonia parkinsoni Fig10: Procerites cf.laeviplex Fig11: Oecotraustes genicularis Fig13:Parkinsonia cf.schloenbachi Fig12,14:Parkinsonia cf.racostata Fig15:Garantiana dubia

Plate 2 This document was created with Win2PDF available at http://www.daneprairie.com. The unregistered version of Win2PDF is for evaluation or non-commercial use only.