Middle Ordovician cephalopods from the Abarsaj area, northern Iran

REFERENCES

• Chen, J.-Y., 1974: Ordovician Nautiloidea. In N.I.O.G.A. Paleontology (ed.): A Handbook of the Stratigraphy and Palaeontology in Southwest China, 138–143. Academia Sinica, Nanjing.
   Google Scholar
• Chen, J.-Y., 1983: Cephalopoda. In N.I.O.G.A.M. Resources (ed.): Paleontological Atlas of East China. 1. Volume of Early Paleozoic, 1–335. Geological Publishing House, Bejing.
   Google Scholar
• Clarke, J.M., 1894: Nanno, a new cephalopodan type. American Geologist14 (4), 205–208.
   Google Scholar
• Dastanpour, M., Evans, D.H. & Bassett, M.G., 2006: A new orthoceratoid cephalopod from the Ordovician (Caradoc) of east-central Iran. Geobios39 (3), 337–345.
   Web of Science ®Google Scholar
• Evans, D.H., 2000: A cephalopod fauna from the middle Ordovician of Saudi Arabia. Palaeontology43 (3), 573–589.
   Web of Science ®Google Scholar
• Evans, D.H., Ghobadi Pour, M. & Popov, L.E., 2012: Review of Early to Mid Ordovician orthoconic cephalopods from Iran. Bulletin of Geosciences88 (1), 45–50.
   Google Scholar
• Flower, R.H. & Kummel, B., 1950: A classification of the Nautiloidea. Journal of Paleontology24, 604–616.
   Google Scholar
• Foord, A.H., 1887: On “Orthoceras (Endoceras) duplex” Wahlenberg et auctt. with descriptions of three new species of Endoceras from the Ordovician of Sweden and Russia contained in the British Museum (Natural History). Annals and Magazine of Natural History5 (20), 393–403.
   Google Scholar
• Ghavidel-Syooki, M., 2009: Palynostratigraphy and palaeogeography of Ordovician strata (Abastu and Abarsaj formations) from the southeastern Caspian Sea, northern Iran. In P.Fernandes, Z.Pereira, J.T.Oliveira & G.Clayton (eds.): CIMP Faro'09, ii Joint Meeting of Spores/Pollen and Acritarch Subcommissions, 31–34. UALG, Faro, Portugal, 23–24 September 2009.
   Google Scholar
• Ghobadi Pour, M., Kebriaee-Zadeh, M.R. & Popov, L.E., 2011: Early Ordovician (Tremadocian) brachiopods from Eastern Alborz Mountains, Iran. Estonian Journal of Earth Sciences60, 65–82.
   Web of Science ®Google Scholar
• Ghobadi Pour, M., Williams, M. & Popov, L., 2007: A new Middle Ordovician arthropod fauna (Trilobita, Ostracoda, Bradoriida) from the Lashkarak Formation, Eastern Alborz Mountains, northern Iran. GFF129, 245–254.
   Web of Science ®Google Scholar
• Hewitt, R.A. & Westermann, G.E.G., 1988: Nautiloid septal strength: revisited and revised concepts. Alcheringa12 (2), 123–128.
   Web of Science ®Google Scholar
• Kobayashi, T., 1934: The Cambro-Ordovician Formations and Faunas of South Chosen. Palaeontology. Part I. Middle Ordovician Faunas. Journal of the Faculty of Sciences of the Imperial University of Tokyo, Section II, Geology, Mineralogy, Geography, Seismology3 (8), 329–519.
   Google Scholar
• Kröger, B., 2012: The “Vaginaten”: the dominant cephalopods of the Baltoscandian Mid Ordovician endocerid limestone. GFF134 (2), 115–132.
   Web of Science ®Google Scholar
• Kröger, B., Beresi, M. & Landing, E., 2007: Early orthoceratoid cephalopods of the Argentine Precordillera (Early–Middle Ordovician). Journal of Paleontology81, 1266–1283.
   Web of Science ®Google Scholar
• Kröger, B., Servais, T. & Zhang, Y., 2009: The origin and initial rise of pelagic cephalopods in the Ordovician. PLoS ONE4 (9), e7262, 10.1371/journal.pone.0007262.
   PubMed Web of Science ®Google Scholar
• Lai, C.-G., 1989: Biogeography of the Ordovician cephalopods from China. Journal of Southeast Asian Earth Sciences3 (1–4), 125–130.
   Google Scholar
• Ruedemann, R., 1905: The structure of some primitive cephalopods. New York State Museum Bulletin80, 269–341.
   Google Scholar
• Schröder, H., 1882: Beiträge zur Kenntniss der in ost- und westpreussischen Diluvialgeschieben gefundenen Silur-Cephalopoden (Fortsetzung). Schriften der physikalisch-ökonomischen Gesellschaft zu Königsberg i. Pr.22, 54–96.
   Google Scholar
• Shahrabi, M., 1991: Geological Map of the Gorgan Quadrangle, no H4, Scale 1:250,000. Geological Survey of Iran, Teheran, Iran.
   Google Scholar
• Stait, B. & Burrett, C., 1987: Biogeography of Australian and Southeast Asian Ordovician nautiloids. In G.D.McKenzie (ed.): Gondwana Six: Stratigraphy, Sedimentology and Paleontology, Geophysical Monograph 41, 21–28. American Geophysical Union, Washington, DC.
   Google Scholar
• Zhang, Y.-B. & Chen, T.-E., 2002: Ordovician nautiloids from Lijiang, Yunnan, Southwest China. Acta Palaeontologica Sinica41, 77–84.
   Google Scholar
• Zou, X.-P., 1987: Ordovician nautiloid faunas of Yuhang and Lin'an, Zhejiang Province. Bulletin of the Nanjing Institute of Geology and Paleontology12, 231–289.
   Google Scholar