First record of catacrinid crinoid from the Lower Permian of Spitsbergen

Gorzelak, Przemysław; Błażejowski, Błażej; Uchman, Alfred; Hanken, Nils‐Martin

doi:10.2478/popore-2013-0010

Cited by 3 publications

(3 citation statements)

References 30 publications

(31 reference statements)

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“…Because modern taxonomy of crinoids is based on the calyx, it is not applicable to the Belgian encrinites as complete calyxes are extremely rare. However, the taxonomic diversity can be approached by the parataxonomy of Moore & Jeffords (1968) based on stem columnal elements as it was demonstrated by Głuchowski (2002) or Gorzelak et al (2013).…”

Section: Introductionmentioning

confidence: 99%

Palaeoecology of the Upper Tournaisian (Mississippian) crinoidal limestones from South Belgium

Debout¹,

Denayer²

2018

Geol. Belg.

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The Tournaisian stage (Lower Mississippian) is known as the golden age of crinoids. In S Belgium, Upper Tournaisian crinoidal limestones, locally called "Petit Granit", are known in the Condroz area (Ourthe Formation) and in the Soignies area (Soignies Member) where tens of quarries expose the crinoidal facies. An isopach map shows that the Ourthe Formation thins northward and westward, probably because of synsedimentary block faulting. Despite its apparent monotony, five crinoidal and peloidal microfacies are identified throughout the formation, and the size and preservation of the crinoid columnals vary vertically and laterally. The encrinite deposited as amalgamated tempestites that accumulated under fair-weather wave base. An estimation of the carbonate production rate was calculated and a value of c. 1200 cm³/m².y is proposed for the Ourthe Fm. The density in individuals was lower in the Hainaut area possibly due to its deeper situation. The analysis of disarticulated crinoid columnals reveals that the crinoidal meadows were diverse with several taxa following a vertical tiering model to maximise the capture of particles from the water column. Beside the crinoids, the fauna was dominated by suspension feeders (brachiopods, bryozoans, tabulate and rugose corals) adapted to a weakly-agitated environment and a relatively soft ground. Rare nektonic and benthic macrophages (holocephalan chondrychthians, actinoceratoid cephalopods, palaechinids, and trilobites) show that the ecosystem was relatively complex despite a simple appearance.

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Section: Introductionmentioning

confidence: 99%

Palaeoecology of the Upper Tournaisian (Mississippian) crinoidal limestones from South Belgium

Debout¹,

Denayer²

2018

Geol. Belg.

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“…Although the stratigraphic position was uncertain, it was considered to be Artinskian by Charlton et al (2002). In addition, early Permian crinoid faunas are known from Russia (Yakovlev, 1926, 1927, 1930; Yakovlev and Ivanov, 1956), the United States (the midcontinent: Moore and Plummer, 1940; Pabian and Strimple, 1974; southern Nevada: Lane and Webster, 1966; Webster and Lane, 1967, 2007), Australia (eastern: Willink, 1978, 1979a, b, 1980; Webster and Jell, 1999b; Western Australia: Webster, 1987, 1990; Webster and Jell, 1992; Teichert and Webster, 1993; Tasmania: Sieverts-Doreck, 1942), Oman (Webster and Sevastopulo, 2007; Webster et al, 2009b), Thailand (Webster and Jell, 1993), British Columbia (Webster et al, 2009a), Greece (Webster, 2012b), Bolivia (Branisa, 1965; Strimple and Moore, 1971; Burke and Pabian, 1978), Mexico (Strimple, 1971), China (Tien, 1926; Chen and Yao, 1993), and Spitsbergen/Norway (Gorzelak et al, 2013). Crinoid faunas are also known from the middle Permian of Tunisia (Valette, 1934; Lane, 1979), Europe (Gregorio, 1930; Ramovš and Sieverts-Doreck, 1968; Strimple and Sevastopulo, 1982), and Pakistan (Waagen, 1887), as well as from upper Permian strata of Europe (e.g., Donovan et al, 1986; Reich, 2007).…”

Section: Introductionmentioning

confidence: 99%

A new crinoid fauna from the Taiyuan Formation (early Permian) of Henan, North China

et al. 2018

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A diverse Permian crinoid fauna is reported from the Taiyuan Formation, Dajian Member (Asselian) at Anyang, northeastern Henan Province of the North China Craton. The specimens are well preserved, including articulated crowns and cups. The fauna contains representatives of each of the major Paleozoic crinoid clades: Cladida (including the Flexibilia), Disparida, and Camerata. Identified genera suggest a greater affinity with North American faunas than with Tethyan faunas. Four new species,Neoprotencrinus anyangensis,Ulocrinus qiaoi,Artichthyocrinus limani, andSynbathocrinus chenae, are proposed herein.UUID:http://zoobank.org/D08DDDCD-485C-45CC-A014-C1CB58C26588

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“…Holtedahl 1911; Rousseau and Nakrem 2012;Gorzelak et al 2013) and the Triassic representatives have never been the subject of a thorough investigation. Here, we report preliminary data on unexpectedly diverse crinoid faunas from the upper Vardebukta Formation and the Tvillingodden Formation (Lower Triassic) at Mariaholmen (Svalbard).…”

Section: Introductionmentioning

confidence: 99%

Crinoids from Svalbard in the aftermath of the end−Permian mass extinction

Salamon¹,

Gorzelak²,

Hanken³

et al. 2015

Polish Polar Research

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Abstract:The end−Permian mass extinction constituted a major event in the history of cri− noids. It led to the demise of the major Paleozoic crinoid groups including cladids, disparids, flexibles and camerates. It is widely accepted that a single lineage, derived from a late Paleo− zoic cladid ancestor (Ampelocrinidae), survived this mass extinction. Holocrinid crinoids (Holocrinus, Holocrinida) along with recently described genus Baudicrinus (Encrinida), the only crinoid groups known from the Early Triassic, are considered the stem groups for the post−Paleozoic monophyletic subclass Articulata. Here, we report preliminary data on unex− pectedly diverse crinoid faunas comprising at least four orders from the Lower Triassic (Induan and Olenekian) of Svalbard, extending their stratigraphic ranges deeper into the early Mesozoic. These findings strongly imply that the recovery of crinoids in the aftermath of the end−Permian extinction began much earlier at higher palaeolatitudes than in the central Tethys.

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First record of catacrinid crinoid from the Lower Permian of Spitsbergen

Cited by 3 publications

References 30 publications

Palaeoecology of the Upper Tournaisian (Mississippian) crinoidal limestones from South Belgium

Palaeoecology of the Upper Tournaisian (Mississippian) crinoidal limestones from South Belgium

A new crinoid fauna from the Taiyuan Formation (early Permian) of Henan, North China

Crinoids from Svalbard in the aftermath of the end−Permian mass extinction

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