Table 4 - uploaded by Mehdi Yazdi
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New Devonian (Frasnian and Famennian) crinoids are described from central and eastern Iran and a new Mississippian (late Tournaisian) echinoderm fauna is described from the south flank of the Alborz Mountains of northern Iran. Both the Devonian and Mississippian echinoderms were living in a carbonate, shelf basin on the northern flank of Gondwana a...
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... The Jeirud Formation is continuously overlain by the Mobarak Formation which is represented by fossiliferous limestones, black shales and marly limestones, suggesting a subtidal palaeoenvironment. The Carboniferous part of the Shahmirzad section contains a number of different fossil groups such as crinoids, brachiopods, bryozoans and gastropods (Ueno et al. 1997;Webster et al. 2007). The most detailed stratigraphy based on conodonts was published by Habibi et al. (2008) (see Fig. 3). ...
... The section has been known since the pioneering descriptions of Jafarian & Brice (1973) and Zahedi (1976), and later outlined in greater detail in terms of its lithological succession and conodont biostratigraphy by Yazdi et al. (2000), Turner et al. (2002), Gholamalian (2003), Wendt et al. (2005), and Gholamalian (2007). Several fossil groups have been extensively described (e.g., Mistiaen et al. 2000;Webster et al. 2007;Hairapetian & Burrow 2016) from the section and late Famennian ammonoids were mentioned by Hamedani (1996) and Becker et al. (2004). ...
Gigantic representatives of the clymeniid genera Hoevelia and Protactoclymenia (Late De-vonian ammonoids) with conch sizes up to 50 cm occur in small numbers in shallow-water carbonates at Chahriseh (Central Iran). Comparison with other occurrences of gigantic clymeniids (Central Eu-rope, North Africa) suggests that taphonomic reasons rather than latitudinal effects with differences in sea water temperature and oxygen availability are responsible for this gigantism. The large size of the ammonoids at Chahriseh is interpreted as local phenomenon caused by accumulation of post-mortem drifted specimens. The new species Hoevelia megalomanica is described.
... The studied sedimentary sequences were explored for the first time during the 1970s (Djafarian and Brice, 1973;Zahedi, 1976). In subsequent years, considering that Chahriseh (Kaftar Mountain) section is one of the best Upper Devonian sections in western central Iran, the mentioned fossiliferous section was noticed by several paleontological and sedimentological studies (e.g., Shirani, 1995;Hamedani, 1996;Djafarian 2000;Brice and Kebriae, 2000;Mistiean et al., 2000;Mistian and Gholamalian, 2000;Yazdi et al., 2000;Hairapetian et al., 2000;Ghavidel-syooki, 2001;Turner et al., 2002;Safari and Kangazian, 2003;Gholamalian, 2003Gholamalian, , 2007Webster et al., 2007). These investigations showed that the age of this sedimentary sequence ranges from the early Frasnian to the late Famennian, beginning with some shallow-water carbonate horizons that gradually change to thick-bedded clastic deposits and shallow-water carbonate, with shale layers Gholamalian, 2003). ...
The Baqer-Abad section, northeast Isfahan Province, Central Iran has a thickness of 220 m representing mainly shallow-water palaeoenvironments with fossiliferous abundance and biodiversity. The zonal division in this section includes ten Famennian zones as follows, from the bottom to the top: triangularis Zone, crepida Zone, Lower rhomboidea Zone, gracilis-Lower marginifera interval Zone, Upper marginifera barren Zone, Uppermost marginifera-trachytera interval Zone, postera Zone, Lower expansa Zone, Middle expansa Zone, Upper expansa-praesulcata interval Zone. This section comprises the most complete biozonation of the Famennian stage in the area of northeast Isfahan in Central Iran. The analysis of the conodont associations and biofacies support the interpretation that these shallow-water habitats were still in platform conditions. Based on the conodont record, major stratigraphic gaps also occur at the end of Famennian, which confirms earlier results reported from other sections with similar palaeoenvironments in the North Isfahan area.
... Djafarian and Brice 1973;Zahedi 1976), and later on, this fossiliferous section was investigated for several palaeontological purposes (e.g. Brice and Kebriaei 2000;Hairapetian et al. 2000;Mistiaen et al. 2000;Gholamalian 2007;Webster et al. 2007). The succession commences with a few metres of shallow-water carbonates and merges into thick siliciclastics and shallow-water carbonates alternating with shale beds, ranging from the early Frasnian to the late Famennian Gholamalian 2003). ...
Conodont fauna from the Kesheh and Dizlu sections in the North Isfahan province were investigated. Shallow-water and/or near-shore conodonts, mainly belonging to the icriodid–polygnathid biofacies, dominate the conodont fauna. Due to the depositional setting which is characterised by predominantly shallow-water palaeoenvironments and the lack of some important zonal index taxa (e.g. Palmatolepis species), a precise conodont biostratigraphy is difficult to establish. The Kesheh section covers sediments ranging from the Givetian hermanni Zone to disparilis Zone whereas in the Dizlu section, the ranges of Middle triangularis to Uppermost crepida, the marginifera to Upper trachytera, and the Lower and Middle expansa Zones indicate a Famennian age. The stratigraphic range of the Bahram Formation is discussed, and according to literature and new conodont data presented herein, it is likely that the age of the Bahram Formation in central Iran has a stratigraphical range from the Givetian (hermanni Zone) to the late Famennian (Middle expansa Zone).
... After an early report by Clapp (1940), the outcrops in Kale-Sardar were first studied in detail by Stöcklin et al. (1965). Later, this fossiliferous section was investigated by many geoscientists including Ashouri (2002Ashouri ( , 2004, Becker et al. (2004), Feist et al. (2003), Flügel (1961), Gholamalian (2007), Gholamalian et al. (2009), Hairapetian and Ginter (2010), Hairapetian and Korn (2011), Morzadec (2002), Walliser (1966), Webster et al. (2007), and Yazdi (1999). The majority of previous studies focused on fossiliferous Upper Devonian strata due to difficulties in sampling, processing and the generally rare fossil content of the Carboniferous successions of the Sardar Group. ...
... (1) Crinoidal limestone horizons in the mid-Carboniferous are well known in Central Iran and have been describes from different areas (e.g., Korn et al., 1999;Webster et al., 2007). The described sections also contain these marker horizons: in the Asad-abad section (Ramsheh) conodont association place the crinoid limestone in the nodosus Conodont Biozone. ...
... The Shishtu Formation in unconformably overlaid by the Sardar Formation, a succession of light-green shales with intercalations of sandstones, quarzite, and fossiliferous limestones (Stocklin et al., 1965 ) of Visean- Moscovian age. In general the fossil contents of the Devonian and Carboniferous rocks in the Shotori Range is relatively abundant and have been described by several authors: goniatites (Walliser, 1966; Yamini, 1996; Becker et al., 2004; Ashuri & Yamini, 2006), brachiopods (Sartenaer, 1966; Rastkar, 1996), crinoids (Flügel, 1966; Webster et al., 2007), receptaculitids (Flügel, 1961), trilobites (Haas & Mensink, 1970; Haas, 1994; Morzadec, 2002; Feist et al., 2003), gastropods (Ashuri, 1997a), vertebrate micro remains (Yazdi & Turner, 2000; Hairapetian et al., 2000 Hairapetian et al., , 2008 Hairapetian & Ginter, 2010) and palynomorphs (Moussavi, 1995; Ghavidel-Syooki & Moussavi, 1996). Several papers address conodonts, mainly for biostratigraphical purposes (Ashouri, 1990Ashouri, , 1995Ashouri, , 1997bAshouri, , 2002Ashouri, , 2004Ashouri, , 2006 Yazdi, 1996 Yazdi, , 1999 Gholamalian, 2002 Gholamalian, , 2007 Gholamalian et al., 2009). ...
A rich and diverse conodont fauna represented by fifty-six taxa belonging to fifteen genera is described from three sections (Ghale-kalaghu, Howz-e-Dorah 1 and Howz-e-Dorah 2) in the southern Shotori Range (central Iran). The association, dominated by Polygnathus, has allowed a detailed biostratigraphy across the Devonian/Carboniferous boundary interval to be constructed, ranging from the Uppermost marginifera Zone to the anchoralis-latus Zone. The D/C boundary is narrowly constrained within a condensed interval at the base of the "Mush Horizon" between the Shishtu 1 and Shishtu 2 subformations.
... After an early report by Clapp (1940) , the outcrops in Kale Sardar were first studied in detail by Stöcklin et al. (1965) . Thus far, this fossiliferous section was the most interesting locality in eastern Iran and has been featured in several works (Flügel 1961; Sartenaer 1966; Walliser 1966; Haas & Mensink 1970; Schultze 1973; Haas 1994; Legrand-Blain 1999; Yazdi 1999; Morzadec 2002; Feist et al. 2003; Becker et al. 2004; Ashouri 2002 Gholamalian 2007; Gholamalian et al. 2009; Webster et al. 2007; Hairapetian & Ginter 2010). The new specimens of Beloceras were collected from a section (Hill IV in Becker et al. 2004 ), located approximately 22 km east of Tabas (N 33°39´26˝; E 57°8´38˝;Fig. 1 ). ...
The cladistic analysis of the beloceratid ammonoids Mesobeloceras and Beloceras shows anagenetic development, by increasing number of sutural elements, in the stem group representatives and cladogenesis in the crown group. Crown group topology rules out vicariant evolution of the beloceratids and does not show palaeogeographic patterns. The widespread occurrences of multilobate species of Beloceras suggests connected low-latitude shelf areas between the regions of the Anti-Atlas, Montagne Noire, Rhenish Mountains, Shotori Range, Altay, and Canning Basin. A new species of Beloceras, Beloceras sardarense sp. nov., is described.
... A further Megaradialocrinus maximum is established within the Frasnian of the Belgian-French Ardennes (cf. WEBSTER et al. 2007). In contrast, the Givetian Hexacrinites type locality of Wolborough (Great Britain), as well as the Givetian outcrops of the Lahn-Dill area (south-eastern Rhenish Massif, Germany), are distinguished by both genera. ...
The classic Lower Givetian crinoid occurrence of the northeastern slope of the railway cut near the station of Gerolstein (northwestern Rhineland-Palatinate, westernmost Germany) is famous for yielding an outstanding diversity of the monobathrid camerate family Hexacrinitidae. Following a short palaeogeographical and stratigraphical introduction of the Gerolstein Syncline (Eifel, Rhenish Massif), the previously described “Hexacrinites” species of this locality are revised. They clearly differ from the type species Platycrinus interscapularis (genus Hexacrinites) by the development of uniserial arms, longer aboral cups and other morphological criteria, like a single posterior interradial plate. Therefore, most of the Eifel species are assigned to the genus Megaradialocrinus (with Megaradialocrinus conicus as its type species), which is herein transferred to superfamily Hexacrinitoidea and family Hexacrinitidae. The extent of morphological differences among other hexacrinitids is discussed and may define further intergeneric differentiation. Five new species are described: Megaradialocrinus aliculatus n. sp., (?) M. bulbiformis n. sp., M. piriculaformis n. sp., M. theissi n. sp. and M. winteri n. sp. The homonym “Hexacrinites magnificus” sensu Hauser (2007a) is renamed: Megaradialocrinus globohirsutus nomen novum.
... odonts (Yazdi 1999;ashouri 2002Gholamalian 2007;Gholamalian et al. 2009), crinoids (Webster et al. 2007), receptaculitids (Flügel 1961) and trilobites (haas and Mensink 1970;haas 1994;Morzadec 2002;Feist et al. 2003). as yet unconfirmed occurrences of rugose corals and stromatoporoids were reported from the vestiges of possible Middle Devonian blocks in an overthrust zone at Kale Sardar (Mistiaen 2001). ...
An assemblage of fifteen taxa of chondrichthyan microremains from late Frasnian through late Famennian pelagic deposits of the Kale Sardar section, eastern Iran, is described. Several taxa (Phoebodus bifurcatus, Phoebodus sophiae and Protacrodus vetustus) are reported for the first time from Iran. the presence of Deihim mansureae and Ph. sophiae in the Late rhenana to linguiformis Zones and Phoebodus rayi in the early triangularis Zone of the Kale Sardar section, provides new biostratigraphic information. the late Frasnian part of the assemblage corresponds to the faunas from the intrashelf basins of central europe, and the middle-late Famennian part is comparable to that from the tafilalt Platform of Morocco.
... Hexacrinites had its highest diversity and abundance during its acme in Germany and Belgium (Hauser 1997(Hauser , 1999(Hauser , 2001 but it was relatively rare in the Famennian. Previous occurrences in the Devonian of the Prototethys are from the Lochovian (Jell 1999) and Frasnian (Jell & Jell 1999) of Australia, the Famennian of China (Lane et al. 1997;Waters et al. 2003), and the Famennian of Iran (Webster et al. 2007). The present report of Hexacrinites chenae sp. ...
Emsian to Frasnian crinoids are described from pelagic facies of the eastern part of the Dra Valley (Tata area), western Anti-Atlas Mountains, southern Morocco. The crinoids show only minor relationship with previously described crinoids from the Tafilalt and Ma'der areas of the eastern Anti-Atlas. The differences are judged to reflect the different environments of these areas. The Dra Valley hexacrinids show greater affinity with European faunas, whereas the amabilicrinids show greater affinity with North American taxa. New taxa described are Hexacrinites chenae sp. nov., Dracrinus crenulatus gen. and sp. nov., Coquinacrinus revimentus gen. and sp. nov, and Embolocrinus quadruus gen. and sp. nov.
