First Record of Aptian- Cenomanian Brachiopods from the Vezk Section (South of Yasuj, Iran)

Document Type: Final File


Department of Geology, Faculty of Sciences, Shahid Bahonar University, Kerman, Islamic Republic of Iran


Brachiopod faunas from the Aptian- Cenomanian Vezk section in southwesternIran comprise ten species in six genera, namely Sellithyris cenomanensis, Sellithyris tornacensis, Sellithyris phaseolina, Phaseolina phaseolina, Tropeothyris sp., Concinnithyris subundata, Kingena arenosa, Cyclothyris difformis, Cyclothyris sp. and Cyclothyris compressa. All species are recorded for the first time from the lower Cretaceous of Vezk section (South of Yasuj). These deposits are composed of an alternation of green marls and thin layers of yellow shaly or sandy limestone, which overlain by thick bedded black limestone. The thickness of these deposits are 74 meters, which covers the Jurassic sediments, while its upper boundary ends with erosion surface that covered by Neogene deposits. These deposits consist of different fossil groups such as brachiopods, echinoids, corals, gastropods and orbitolinids that confirm the Aptian- Cenomanian ages for these sediments. The fauna assemblages suggest at shallow and suitable environment prevailed during the deposition of the strata.


Main Subjects

1.            Abdelhady A. and Fürsich F.  Macroinvertebrate palaeo communities from the Jurassic succession of Gebel Maghara (Sinai, Egypt). J. Afr. Earth. Sci, 97: 173–193 (2014).

2.            Arab A. Systematic paleontology, Paleoecology and Chemostratigraphy of Mid– Cretaceous Marls in West and North-west of Kerman. Ph.D. thesis, University of Shahid Bahonar, 362 pp. (2010).

3.            Arab A., Vaziri M.R. and Soheili S. Introducing of Rhynchonellid brachiopods (genus Cyclothyris and some its species) from Late Aptian-Early Cenomanian sediments of Baghin area (west of Kerman, Iran). Paleontology, 2 (2): 244- 258 (2015).

4.            Bitner M.A. and Motchurova – Dekova N. Brachiopods from the Sanadinovo Formation (lower Cenomanian) in northern Bulgaria: Cretaceous Res., 26: 525-539 (2005).

5.            Foladi F., and Dastanpour M. Systematic and Paleoecology of middle- Cretaceous Brachiopods of Family Sellithyrididae from Estakhrooyeh Section, West of Kerman. Geoscinces, 24: 73- 80 (2015).

6.            Gaspard D. Sellithyridinae Terebratulidae du Cretace´ d’Europe occidentale. Dynamique des populations, systematique et evolution. Cahiers de Paleontologie. CNRS, Paris, 242 pp. (1988a).

7.            Gaspard D. Distribution and recognition of phases in the AptianeTuronian (Cretaceous) brachiopod development in NW Europe. Geol. Carpatica, 48: 145- 161 (1997).

8.            Gaspard D. Microstructure de Tere bratules biplissees (Brachiopodes) du Cenomanien de la Sarthe (France). Affinite des formes avec le genre Sellithyris middlemiss. Ann. Paleontol., (Invertebres), 68: 1– 143 pls. (1982a).

9.            Gaspard D. Noteworthy brachiopods of the Cenomanian stratotype: A synthesis of the biochronological, palaeoenvironmental and palaeoecological implications. Geobios, 47: 347– 370 (2014).

10.          Gaspard D. Types de brachidium chez des brachiopodes (craniiformes et rhynchonelliformes) du Crétacé– structures équivalentes à l’Holocène. Fossiles, hors-serie. 5: 55-70 (2015).

11.          Graziano R. and Taddei Ruggiero E. Cenomanian (Cretaceous) Brachiopod-Rich Facies of the Carbonate Platform-to-Basin Transition in the Matese Mountains (Central-Southern Italy): Stratigraphic and Paleoenvironmental Meaning. GRA, 9: 59- 72 (2007).

12.          Immel F., Gaspard D., Marie A., Guichard N., Cusack M. and Marin F. Shell proteome of Rhynchonelliform brachiopods. J. Struct. Biol., 190: 360–366 (2015).

13.          Lee D.E., Smirnova T.N. and Sun D.L. Cancellothyridoidea. In: R.L. Kaesler (ed.), Treatise on Invertebrate Paleontology. Part H. Brachiopoda revised. Geol. Soc. America & Univ. Kansas, 5: 2145– 2162 (2006).

14.          Matyszkiewicz J., Krajewski M., Kochman A., Kozłowski A. and Dulinski M. Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków Cze˛stochowa Upland (southern Poland) and their links to hydrothermal vents. Facies, 62 (2):1- 28 (2016).

15.          Sandy M.R., Hryniewicz K., Hammer O., Nakrem H.A. and Little C.T.S. Brachiopods from Late Jurassic- Early Cretaceous hydrocarbon seep deposits, central Spitsbergen, Svalbard. Zootaxa, 6: 501–532 (2014).

16.          Owen E.F. The brachiopod genus Cyclothyris. Bulletin of the British Museum (Natural History), Geol., 7: 37- 63 (1962).

17.          Owen E.F. Cenomanian brachiopods from the Lower Chalk of Britain and northern Europe. Bulletin of the British Museum (Natural History), Geol., 44: 65- 175 (1988).

18.          Owen E.F. A revision of the brachiopod subfamily Kingeninae Elliott. Bulletin of the British Museum (Natural History). Geol., 19: (2), 29– 83 (1970).