Radiolarian diversity changes during the Late Cambrian–Early Ordovician transition as recorded in the Cow Head Group of Newfoundland (Canada)

Pouille, Lauren; Danelian, Taniel; Maletz, Jörg

doi:10.1016/j.marmicro.2013.05.002

Cited by 13 publications

(11 citation statements)

References 23 publications

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“…Multiple generations of whorled rays are easily recognized. The material in this study is identical to the lowermost Tremadocian form Palaeospiculum multifurcatum (misspelled as Paleospiculum ) from the Green Point section, Newfoundland, illustrated by Pouille et al (2014a, pl.4, fig. 1), but we follow the reassignment of Maletz and Bruton (2007).…”

Section: Systematic Paleontologysupporting

confidence: 67%

“…5.14–5.16.2007 Pararcheoentactinia reedae ; Won et al, p. 504, fig. 4.3, 4.4.2014 Pararcheoentactinia reedae ; Pouille et al, 2014a, pl. 1, fig.…”

Section: Systematic Paleontologyunclassified

“…The main difference between Svalbardospiculum and Palaeospiculum is in the development of higher generations of whorled rays on the elongated primary rays in the genus Svalbardospiculum (Maletz and Bruton, 2007). Previously, Svalbardospiculum had been recovered only from the Lower Ordovician (lower Tremadocian) in Newfoundland (Won and Iams, 2002; Won et al, 2005; Pouille et al, 2014a), and the Lower–Middle Ordovician (upper Floian–lower Dapingian) of Spitsbergen (Maletz and Bruton, 2007). However, we can confirm the presence of this genus in the Middle Ordovician (middle Darriwilian).…”

Section: Systematic Paleontologymentioning

confidence: 99%

“…2005 Palaeospiculum multifurcatum Won et al, p. 451, fig. 11.1–11.14.2014a Paleospiculum multifurcatum Pouille et al, pl. 4, fig.…”

Section: Systematic Paleontologyunclassified

“…Lower Paleozoic carbonates in Newfoundland are well known for numerous well-preserved radiolarian faunas from upper Cambrian to Lower Ordovician strata (Bergström, 1979; Aitchison et al, 1998; Zhang and Pratt, 2000; Won and Iams, 2002, 2011, 2013, 2015; Maletz and Bruton, 2005, 2007, 2008; Won et al, 2005; Maletz, 2007, 2011; Pouille et al, 2014a). Previous reports from the Middle Ordovician Table Cove Formation have mentioned the presence of radiolarians at Piccadilly Quarry (Bergström, 1979; Renz, 1990; Zhang and Pratt, 2000; Maletz and Bruton, 2007), a locality well-known for other fossil occurrences.…”

Section: Introductionmentioning

confidence: 99%

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Middle Ordovician (middle Darriwilian) Archaeospicularia and Entactinaria (radiolarians) from the Table Cove Formation, Piccadilly Quarry, Newfoundland, Canada

Kachovich

Aitchison

2021

J. Paleontol.

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New, distinctive, well-preserved and previously undescribed constituents of a Middle Ordovician (middle Darriwilian, Dw2) radiolarian assemblage from the Table Cove Formation in Newfoundland are described. Three-dimensional X-ray micro-computed tomography (μ-CT) facilitates detailed examination of key specimens revealing hitherto unknown details of the internal morphologies of key lower Paleozoic taxonomic groups, among which a lack of knowledge has previously impeded resolution of higher taxonomic rankings. Twenty-seven archaeospiculid and entactinarian taxa are described and illustrated including six new species: Westernbrookia polygonata n. sp., Neopalaeospiculum piccadilliensis n. sp., Ramuspiculum laxum n. sp. Spongentactinia nazarovi n. sp., Aspiculum irregulare n. sp., and Nyfrieslandia ramosissima n. sp. The investigation extends the known ranges of the species: Pararcheoentactinia reedae Won and Iams, 2002; Sphaeroentactinia robusta Won and Iams, 2015; Varispiculum ectospiculatum Won and Iams, 2015; and Svalbardospiculum multifurcatum (Won, Iams, and Reed, 2005), together with the genus Echidnina to the mid-Darriwilian. UUID: http://zoobank.org/74826b7b-bb86-45d5-ad23-e6e65e0706df.

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Section: Systematic Paleontologysupporting

confidence: 67%

“…5.14–5.16.2007 Pararcheoentactinia reedae ; Won et al, p. 504, fig. 4.3, 4.4.2014 Pararcheoentactinia reedae ; Pouille et al, 2014a, pl. 1, fig.…”

Section: Systematic Paleontologyunclassified