A Cladid-Dominated Early Mississippian Crinoid and Conodont Fauna From Kerman Province, Iran and Revision of the Glossocrinids and Rhenocrinids

Webster, Gary D.; Maples, Christopher G.; Mawson, Ruth; Dastanpour, Mohammad

doi:10.1666/0022-3360(2003)77[1:acemca]2.0.co;2

Cited by 24 publications

(33 citation statements)

References 31 publications

(64 reference statements)

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“…The recovery of the Glossocrinacea as a clade provides quantitative support for evolutionary inferences discussed by Webster et al (2003). These 'transitional dendrocrinids' (McIntosh, 2001) are among the first cladids to evolve pinnules and are traditionally placed within the order Poteriocrinida.…”

Section: Discussionmentioning

confidence: 73%

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Bayesian estimation of fossil phylogenies and the evolution of early to middle Paleozoic crinoids (Echinodermata)

Wright¹

2017

J. Paleontol.

137

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Abstract.-Knowledge of phylogenetic relationships among species is fundamental to understanding basic patterns in evolution and underpins nearly all research programs in biology and paleontology. However, most methods of phylogenetic inference typically used by paleontologists do not accommodate the idiosyncrasies of fossil data and therefore do not take full advantage of the information provided by the fossil record. The advent of Bayesian 'tip-dating' approaches to phylogeny estimation is especially promising for paleosystematists because time-stamped comparative data can be combined with probabilistic models tailored to accommodate the study of fossil taxa. Under a Bayesian framework, the recently developed fossilized birth-death (FBD) process provides a more realistic tree prior model for paleontological data that accounts for macroevolutionary dynamics, preservation, and sampling when inferring phylogenetic trees containing fossils. In addition, the FBD tree prior allows for the possibility of sampling ancestral morphotaxa. Although paleontologists are increasingly embracing probabilistic phylogenetic methods, these recent developments have not previously been applied to the deep-time invertebrate fossil record. Here, I examine phylogenetic relationships among Ordovician through Devonian crinoids using a Bayesian tip-dating approach. Results support several clades recognized in previous analyses sampling only Ordovician taxa, but also reveal instances where phylogenetic affinities are more complex and extensive revisions are necessary, particularly among the Cladida. The name Porocrinoidea is proposed for a well-supported clade of Ordovician 'cyathocrine' cladids and hybocrinids. The Eucladida is proposed as a clade name for the sister group of the Flexibilia herein comprised of cladids variously considered 'cyathocrines,' 'dendrocrines,' and/or 'poteriocrines' by other authors.

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Section: Discussionmentioning

confidence: 73%

“…This clade contains a subclade comprising members of the Rutkowskicrinidae, Glossocrinidae, Corematocrinidae, and Amabilicrinidae. This clade is supported with posterior probability 0.84 and is equivalent to the superfamily Glossocrinacea originally recognized by Webster et al (2003).…”

Section: Wright-phylogeny Of Early To Middle Paleozoic Crinoidsmentioning

confidence: 74%

Bayesian estimation of fossil phylogenies and the evolution of early to middle Paleozoic crinoids (Echinodermata)

Wright¹

2017

J. Paleontol.

137

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“…The studies carried out on fossil groups other than corals, such as brachiopods by , foraminifera (Leven & Gorgij, 2006), crinoids (Webster et al, 2003) and palynomorphs , indicate that the late Carboniferous-early Permian Iranian fauna is similar to coeval biota from the warm Boreal Realm (Shi, 1998;Fedorowski et al, 2007) of the Arctic and Urals ( Figure 14). The findings of the present study gives an idea for late Carboniferous corals' evolution and larval migration that lived in the northern margin of the Gondwana.…”

Section: Palaeobiogeographymentioning

confidence: 99%

Fasciculate Kleopatrinid corals from the Bashkirian (late Carboniferous) of Sardar Formation (Ozbak-Kuh Mountains, East-Central Iran)

Badpa¹,

Poty²,

Ashouri³

et al. 2016

Rev. bras. paleontol.

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-In the East-Central Iran, the Sardar Formation (upper Visean-Moscovian) consists of shallow-water limestone with intercalations of shale containing rugose corals, tabulate corals and brachiopods. Ten sections were sampled in the Ozbak-kuh Mountains, from north to south. Among the rugose corals, an assemblage of fasciculate Kleopatrinidae has been collected. The latter contains the species: Paraheritschioides antoni antoni, P. antoni minor, P. gracilis and two new species for the genera Fomichevella and Heintzella. Heintzella is described from Iran for the first time. However, its age, as determined by conodonts and foraminifers, is early to middle Bashkirian (early late Carboniferous). The most similar, time-equivalent faunal associations are that of the Ellesmere Island, Sverdrup Basin in Arctic Canada, Alexander terrane and Brooks Range in southeastern Alaska and eastern Klamath terrane in northern California, where similar tropical warm water conditions have been identified during the Bashkirian in the northern hemisphere. During these times central Iran block and Northern provinces, characterized by a dominant carbonate facies and more diversified colonial coral faunas.Key words: Iran, Ozbak-kuh, Sardar, Bashkirian, rugose corals. RESUMO -A Formação Sardar (Viseano superior-Moscoviano) no Irã Central-Leste é caracterizada por calcários de ambientes pouco profundos com intercalações de folhelhos que contêm corais rugosos, tabulados e braquiópodes. Foram estudadas dez amostras das montanhas Ozbak-kuh, de norte a sul. Entre os corais rugosos foi amostrada uma associação de Kleopatrinidae fasciculados, que contém as espécies Paraheritschioides antoni antoni, P. antoni minor, P. gracilis e duas novas espécies novas para os gêneros Fomichevella e Heintzella. O gênero Heintzella é descrito pela primeira vez para o Irã. Contudo, a sua idade, determinada por conodontes e foraminíferos, é Bashkiriano inicial-médio (Neocarbonífero). As associações faunísticas contemporâneas mais semelhantes são as da Ilha de Ellesmere, bacia Sverdrup no Canadá Ártico, Terreno Alexander e Cordilheira Brooks no sudeste de Alasca, e o Terreno Klamath mais a leste na Califórnia setentrional, onde condições de águas quentes tropicais foram identificadas durante o Bashkiriano no hemisfério norte. O bloco central iraniano e as provincias setentrionais, durante este tempo, foram caracterizadas por facies calcárias dominantes e faunas coralinas coloniais diversificadas.

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“…Rare reports of Carboniferous and Permian specimens assigned to Hexacrinites Austin and Austin, 1843 are based on columnals [Early Carboniferous (Stache 1883); Permian (Gregorio 1930)] and may be misidentified; here, they are considered nomen dubia. Genera of the Dichocrinidae range from the Late Devonian into the Late Permian (Webster 2003;Webster et al 2003). Additional study of the basals of the Hexacrinitidae and the Dichocrinidae is needed to determine the full significance of this morphologic character.…”

Section: Remarksmentioning

confidence: 99%

Early Pennsylvanian, Bashkirian, echinoderms from eastern Iran, a potential transitional fauna between Laurentia/Avalonia and the Paleotethys, and a Permian cromyocrinid from central Iran

Webster

Maples

Yazdi

et al. 2011

Palaeobio Palaeoenv

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A Cladid-Dominated Early Mississippian Crinoid and Conodont Fauna From Kerman Province, Iran and Revision of the Glossocrinids and Rhenocrinids

Cited by 24 publications

References 31 publications

Bayesian estimation of fossil phylogenies and the evolution of early to middle Paleozoic crinoids (Echinodermata)

Bayesian estimation of fossil phylogenies and the evolution of early to middle Paleozoic crinoids (Echinodermata)

Fasciculate Kleopatrinid corals from the Bashkirian (late Carboniferous) of Sardar Formation (Ozbak-Kuh Mountains, East-Central Iran)

Early Pennsylvanian, Bashkirian, echinoderms from eastern Iran, a potential transitional fauna between Laurentia/Avalonia and the Paleotethys, and a Permian cromyocrinid from central Iran

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