Anatase and<i>Hadimopanella</i>selection by<i>Salterella</i>from the Kap Troedsson formation (Cambrian Series 2) of North Greenland

Peel, John S.

doi:10.1080/11035897.2016.1227365

Cited by 5 publications

(4 citation statements)

References 26 publications

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“…10I). This morphology indicates that the material belongs to the genus Volborthella given that the outer surface of the agglutinated deposits in Salterella typically exhibit uneven furrows representing the insertion of calcareous laminae, even when the outer shell is dissolved (Peel 2017b). Consequently, we identify the material at hand as belonging to V. tenuis Schmidt, 1888, the only known species of Volborthella .…”

Section: Systematic Palaeontologymentioning

confidence: 99%

“…Agmatan genera are mainly separated from each other by structural differences. In Salterella the agglutinated deposits are sandwiched between narrow calcareous layers inside a mineralized calcareous shell (Yochelson 1977; Peel & Yochelson 1982; Skovsted 2003; Peel 2017b), while Volborthella seems to lack calcareous components (Hagadorn & Waggoner 2002; Yochelson & Kisselev 2003). Agglutinated cone‐shaped fossils occur in samples from both the basal limestone member and in the middle shale member of the Mural Formation (Fig.…”

Section: Systematic Palaeontologymentioning

confidence: 99%

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Small shelly fossils and carbon isotopes from the early Cambrian (Stages 3–4) Mural Formation of western Laurentia

Skovsted

Balthasar

Vinther

et al. 2020

Papers in Palaeontology

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The extraordinary window of phosphatized and phosphatic small shelly fossils (SSF) during the early and middle Cambrian is an important testament to the radiation of biomineralizing metazoans. While SSF are well known from most Cambrian palaeocontinents during this time interval, western Laurentia has relatively few SSF faunas.Here we describe a diverse SSF fauna from the early Cambrian (Stages 3-4) Mural Formation at three localities in Alberta and British Columbia, Canada, complemented by carbon isotope measurements to aid in a potential future bio-chemostratigraphic framework. The fauna expands the recorded SSF assemblage diversity in western Laurentia and includes several brachiopods, four bradoriids, three chancelloriids, two hyoliths, a tommotiid and a helcionellid mollusc as well as echinoderm ossicles and specimens of Microdictyon, Volborthella and Hyolithellus. New taxa include the tommotiid genus Canadiella gen. nov., the new bradoriid species Hipponicharion perforata sp. nov. and Pseudobeyrichona taurata sp. nov. Compared with contemporaneous faunas from western Laurentia, the fauna is relatively diverse, particularly in taxa with originally phosphatic shells, which appear to be associated with archaeocyathid build-ups. This suggests that the generally low faunal diversity in western Laurentia may be at least partly a consequence of poor sampling of suitable archaeocyathan reef environments. In addition, the tommotiid Canadiella filigrana appears to be of biostratigraphical significance in Cambrian Stage 3 strata of western Laurentia, and the unexpected high diversity of bradoriid arthropods in the fauna also suggests that this group may prove useful for biostratigraphical resolution in the region.

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Section: Systematic Palaeontologymentioning

confidence: 99%

Section: Systematic Palaeontologymentioning

confidence: 99%

Small shelly fossils and carbon isotopes from the early Cambrian (Stages 3–4) Mural Formation of western Laurentia

Skovsted

Balthasar

Vinther

et al. 2020

Papers in Palaeontology

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“…Hyolith conchs are common in the Kap Troedsson Formation, but opercula dominate at Navarana Fjord. The bradoriids Beyrichona avanga Peel, 2017c and Hipponicharion skovstedi Peel, 2017c are common in the Kap Troedsson Formation (Peel, 2017c), but absent in northern Lauge Koch Land. However, Spinospitella is present in northern Lauge Koch Land, but absent from the Kap Troedsson Formation.…”

Section: Biostratigraphy and Faunal Comparisonsmentioning

confidence: 99%

An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia)

Peel

2021

J. Paleontol.

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An assemblage of 50 species of small shelly fossils is described from Cambrian Series 2 (Stage 4) strata in North Greenland, the present day northernmost part of the paleocontinent of Laurentia. The fossils are derived from the basal member of the Aftenstjernesø Formation at Navarana Fjord, northern Lauge Koch Land, a condensed unit that accumulated in a sediment-starved outer ramp setting in the transarctic Franklinian Basin, on the Innuitian margin of Laurentia. Most other small shelly fossil assemblages of similar age and composition from North America are described from the Iapetan margin of Laurentia, from North-East Greenland south to Pennsylvania. Trilobites are uncommon, but include Serrodiscus. The Australian bradoriid Spinospitella is represented by a complete shield. Obolella crassa is the only common brachiopod. Hyoliths, including Cassitella, Conotheca, Neogloborilus, and Triplicatella, are abundant and diverse, but most are represented just by opercula. Sclerites interpreted as stem-group aculiferans (sachitids) are conspicuous, including Qaleruaqia, the oldest described paleoloricate, Ocruranus?, Inughuitoconus n. gen., and Hippopharangites. Helcionelloid mollusks are diverse, but not common; they are associated with numerous specimens of the bivalve Pojetaia runnegari. The fauna compares best with that of the upper Bastion Formation of North-East Greenland, the Forteau Formation of western Newfoundland, and the Browns Pond Formation of New York, but several taxa have a world-wide distribution. Many specimens are encrusted with crystals of authigenic albite. New species: Anabarella? navaranae, Stenotheca? higginsi, Figurina? polaris, Hippopharangites groenlandicus, Inughuitoconus borealis, and Ocruranus? kangerluk.UUID: http://zoobank.org/160a17b1-3166-4fcf-9849-a3cabd1e04a3

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“…2). Rich Cambrian Series 2, Stage 4 faunas are known from the stratigraphically lower Kap Troedsson Formation of the Brønlund Fjord Group (Blaker & Peel 1997;Peel 2014Peel , 2017aPeel , 2017b but intervening units of the Bistrup Land, Blåfjeld and Brikkerne formations are unfossiliferous.…”

Section: Geological Backgroundmentioning

confidence: 99%

EldoradiaandAcrocephalops(Trilobita: Bolaspididae) from the middle Cambrian (Miaolingian) of northern Greenland (Laurentia)

Peel

2021

GFF

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The ptychoparioid trilobites Eldoradia and Acrocephalops (Family Bolaspididae) are described from the middle Cambrian (Miaolingian Series) of northern Greenland (Laurentia). Eldoradia, originally described from the Secret Canyon Shale of Nevada, is recorded from southwestern Wulff Land, North Greenland, where it occurs together with Modocia and Olenoides. Eldoradia caerulioris n. sp. is established. The occurrence of Eldoradia in the lower part of the Blue Cliffs Formation indicates a minimum late middle Cambrian age (Miaolingian Series, Guzhangian Stage) for the base of the formation. Type material of Acrocephalops, a relative of Eldoradia originally proposed on the basis of material from the Miaolingian Series (Wuliuan Stage) of Inglefield Land, NorthWest Greenland, is redescribed.

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Anatase andHadimopanellaselection bySalterellafrom the Kap Troedsson formation (Cambrian Series 2) of North Greenland

Cited by 5 publications

References 26 publications

Small shelly fossils and carbon isotopes from the early Cambrian (Stages 3–4) Mural Formation of western Laurentia

Small shelly fossils and carbon isotopes from the early Cambrian (Stages 3–4) Mural Formation of western Laurentia

An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia)

EldoradiaandAcrocephalops(Trilobita: Bolaspididae) from the middle Cambrian (Miaolingian) of northern Greenland (Laurentia)

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