John S. Peel
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View article: Fauna of the Sæterdal Formation (Cambrian Series 2, Stage 4) of North Greenland (Laurentia)
Fauna of the Sæterdal Formation (Cambrian Series 2, Stage 4) of North Greenland (Laurentia) Open
The fauna preserved in decalcified sandstones of the Sæterdal Formation (Cambrian Stage 4) of southern Peary Land, North Greenland (Laurentia) is dominated by the trilobites Kootenia marcoui and Bonnia brennus, which also occur in the equi…
View article: Extending the diversity of grasping spines in middle Cambrian stem-group Chaetognathifera
Extending the diversity of grasping spines in middle Cambrian stem-group Chaetognathifera Open
Elements of Fimbulispina laurentica gen. et sp. nov. from the Fimbuldal Formation (middle Cambrian, Miaolingian Series, Drumian Stage) of North Greenland (Laurentia) are interpreted as the circum-oral grasping spines of a stem-group chaeto…
View article: Sclerite ray canals in the Cambrian coeloscleritophoran Chancelloria from North Greenland (Laurentia)
Sclerite ray canals in the Cambrian coeloscleritophoran Chancelloria from North Greenland (Laurentia) Open
A sclerite of Chancelloria from the Henson Gletscher Formation (Cambrian Stage 4) of North Greenland preserves phosphatised central ray canals within the sclerite rays, confirming the extension of epithelial tissue into the sclerite interi…
View article: A new helcionelloid mollusc from the Cambrian of Green land and Idaho (Laurentia)
A new helcionelloid mollusc from the Cambrian of Green land and Idaho (Laurentia) Open
Ressericonella gen. nov., a new genus of helcionelloid mollusc, characterized by a narrow shell with a shallowly convex dorsal surface and flat to shallowly concave lateral areas, is described from the Cambrian of Greenland and Idaho. The …
View article: Lithostratigraphy of the Portfjeld Group (Ediacaran – lowermost Cambrian) of North Greenland
Lithostratigraphy of the Portfjeld Group (Ediacaran – lowermost Cambrian) of North Greenland Open
The Portfjeld Formation, as originally defined, is the lowermost lithostratigraphic unit of the mainly Lower Palaeozoic Franklinian Basin in southern Peary Land, central North Greenland. The unit crops out semi-continuously from Valdemar G…
View article: Unusual diagenesis of Cambrian chancelloriids from Greenland and Siberia
Unusual diagenesis of Cambrian chancelloriids from Greenland and Siberia Open
Phosphatized sclerites of Chancelloria and Allonnia are described from the Henson Gletscher Formation (Cambrian, Miaolingian Series, Wuliuan Stage) of North Greenland and the lower Cambrian of Siberia. They preserve diagenetic, unusually l…
View article: Musculature of an Ordovician (Darriwilian) patelliform gastropod from Estonia
Musculature of an Ordovician (Darriwilian) patelliform gastropod from Estonia Open
A unique internal mould of the patelliform mollusc Eesticonus aariensis n. gen. n. sp. is described from the Middle Ordovician (Darriwilian Series, Kunda Stage) of northern Estonia. Well-preserved muscle attachment scars are compared to th…
View article: Euendolith borings in Chancelloria and Nisusia from the middle Cambrian (Miaolingian) of North Greenland (Laurentia).
Euendolith borings in Chancelloria and Nisusia from the middle Cambrian (Miaolingian) of North Greenland (Laurentia). Open
Borings of microscopic organisms (euendoliths) are described from the Henson Gletscher Formation (middle Cambrian, Miaolingian Series, Wuliuan Stage) of Peary Land, North Greenland (Laurentia). Partially phosphatised sclerites of Chancello…
View article: Periostracum in Cambrian helcionelloid and rostroconch molluscs: comparison to modern taxa
Periostracum in Cambrian helcionelloid and rostroconch molluscs: comparison to modern taxa Open
The periostracum, a non-calcified organic layer that envelops the mineralized shell layer ('ostracum') of molluscs, acts as an initial framework for the calcified 'ostracum.' Despite its significance in biomineralization in molluscs, fossi…
View article: Proterozoic - basal Cambrian stratigraphy across Nares Strait: correlation between Inglefield Land and Bache Peninsula
Proterozoic - basal Cambrian stratigraphy across Nares Strait: correlation between Inglefield Land and Bache Peninsula Open
In the Kane Basin region of Nares Strait (78° to 79°N) unmetamorphosed Proterozoic and basal Cambrian platform strata overlie the Precambrian Shield both in Inglefield Land in Greenland, and on Bache Peninsula in Ellesmere Island. The plat…
View article: Helcionelloid molluscs from the lower Cambrian (Series 2, Stage 4) of southern Sweden
Helcionelloid molluscs from the lower Cambrian (Series 2, Stage 4) of southern Sweden Open
Helcionelloid molluscs are described from the Gislov Formation (Cambrian Series 2, Stage 4; Vergalian-Rausvian regional stages) in Scania, southern Sweden. Seven species are distinguished,including âPelagiella' sp., Helcionella antiqua, …
View article: Muscle scars in Miaolingian helcionelloids from Laurentia and the diversity of muscle scar patterns in Cambrian univalve molluscs
Muscle scars in Miaolingian helcionelloids from Laurentia and the diversity of muscle scar patterns in Cambrian univalve molluscs Open
Two pairs of equidimensional muscle-attachment scars are described on the dorso-lateral surfaces of internal moulds of the helcionelloid molluscs Hensoniconus gen. nov. and Vendrascospira from the Henson Gletscher Formation (Cambrian, Miao…
View article: A phosphatised fossil Lagerstätte from the middle Cambrian (Wuliuan Stage) of North Greenland (Laurentia)
A phosphatised fossil Lagerstätte from the middle Cambrian (Wuliuan Stage) of North Greenland (Laurentia) Open
The upper Henson Gletscher Formation (Cambrian, Miaolingian Series, Wuliuan Stage) of southern Lauge Koch Land and Løndal, south-western Peary Land, North Greenland (Laurentia) yields diverse assemblages of phosphatised Small Shelly Fossil…
View article: Muscle attachment scars in helcionelloids from Denmark cast light on mollusc evolution in the Cambrian
Muscle attachment scars in helcionelloids from Denmark cast light on mollusc evolution in the Cambrian Open
Multiple, small (diameter <20 μm) swellings on the apex of internal moulds of the laterally compressed helcionelloids Eotebenna viviannae and the new species Eotebenna danica from the middle Cambrian (Miaolingian) of Bornholm, Denmark, …
View article: Shell injuries, repair and malformation in the early Cambrian mollusc <i>Helcionella antiqua</i> from Scania, Sweden
Shell injuries, repair and malformation in the early Cambrian mollusc <i>Helcionella antiqua</i> from Scania, Sweden Open
Three cases of repaired injuries and malformation in specimens of the helcionelloid mollusc Helcionella antiqua (Ki & UAELIG;r, 1917) from the lower Cambrian (Cambrian Series 2, Stage 4) Gislov Formation of southern Sweden document som…
View article: Problematic tubular fossils from the Portfjeld Formation (Ediacaran) of North Greenland
Problematic tubular fossils from the Portfjeld Formation (Ediacaran) of North Greenland Open
Two rare, phosphatized, tubular microfossils of uncertain affinity, probably algal, are described from the Portfjeld biota (Ediacaran) of North Greenland. Portfjeldia aestatis n. gen. n. sp. preserves two tubules, one of which branches, wi…
View article: Middle Cambrian (Miaolingian Series, Wuliuan Stage) molluscs and mollusc-like microfossils from North Greenland (Laurentia).
Middle Cambrian (Miaolingian Series, Wuliuan Stage) molluscs and mollusc-like microfossils from North Greenland (Laurentia). Open
Diverse assemblages of helcionelloid molluscs and mollusc-like microfossils are described from the upper Henson Gletscher Formation (Cambrian, Miaolingian Series, Wuliuan Stage) of Lauge Koch Land and western Peary Land, North Greenland (L…
View article: The oldest tongue worm: a stem-group pentastomid arthropod from the early middle Cambrian (Wuliuan Stage) of North Greenland (Laurentia)
The oldest tongue worm: a stem-group pentastomid arthropod from the early middle Cambrian (Wuliuan Stage) of North Greenland (Laurentia) Open
Rare phosphatised fragments within small shelly fossil assemblages from the upper Henson Gletscher Formation (Cambrian, Miaolingian Series, Wuliuan Stage) of North Greenland (Laurentia) are described as Dietericambria hensoniensis n. gen. …
View article: Hyoliths from the Bystraya Formation (Cambrian Series 2) of eastern Transbaikalia (Zabaykalsky Krai), Siberia
Hyoliths from the Bystraya Formation (Cambrian Series 2) of eastern Transbaikalia (Zabaykalsky Krai), Siberia Open
The hyolith fauna of the middle Bystraya Formation (Cambrian Series 2) of eastern Transbaikalia (Zabaykalsky Krai), Siberia, includes at least 17 described taxa distributed between the orders Hyolithida and Orthothecida. Species of Microco…
View article: Cavity-dwelling microorganisms from the Ediacaran and Cambrian of North Greenland (Laurentia)
Cavity-dwelling microorganisms from the Ediacaran and Cambrian of North Greenland (Laurentia) Open
Records of diagenetically mineralized, filamentous, cavity-dwelling microorganisms extend back to strata from the early Paleoproterozoic (2400 Ma). In North Greenland (Laurentia), they are first known from the Ediacaran (Neoproterozoic; ca…
View article: In-place operculum demonstrates that the Middle Cambrian<i>Protowenella</i>is a hyolith and not a mollusc
In-place operculum demonstrates that the Middle Cambrian<i>Protowenella</i>is a hyolith and not a mollusc Open
Protowenella is an early–middle Cambrian, isostrophically coiled, calcareous microfossil originally described from the middle Cambrian (Miaolingian) of Australia; it has been referred previously to the molluscan classes Monoplacophora, Hel…
View article: Holdfasts of<i>Sphenothallus</i>(Cnidaria) from the early Silurian of western North Greenland (Laurentia)
Holdfasts of<i>Sphenothallus</i>(Cnidaria) from the early Silurian of western North Greenland (Laurentia) Open
Well-preserved holdfasts and early growth stages of the tubular cnidarian Sphenothallus are described from the early Silurian (Llandovery Series) of Washington Land, North Greenland. The diameter of the holdfast is determined by the format…
View article: Ontogeny, morphology and pedicle attachment of stenothecoids from the middle Cambrian of North Greenland (Laurentia)
Ontogeny, morphology and pedicle attachment of stenothecoids from the middle Cambrian of North Greenland (Laurentia) Open
Brachiopods are the most common and diverse bivalved fossils in the Cambrian, but the adaptation to enclose the soft parts within two articulating shells is widespread in the Cambrian biota.Amongst arthropods, bradoriids and phosphatocopin…
View article: Lower Cambrian (Series 2) small shelly fossils from along Nares Strait (Nunavut and Greenland; Laurentia)
Lower Cambrian (Series 2) small shelly fossils from along Nares Strait (Nunavut and Greenland; Laurentia) Open
Three small assemblages of lower Cambrian (Cambrian Series 2, Stage 4) small shelly fossils are described from Laurentian strata astride Nares Strait. The fauna from the Humboldt Formation of Daugaard-Jensen Land, North Greenland, is deriv…
View article: An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia)
An outer shelf shelly fauna from Cambrian Series 2 (Stage 4) of North Greenland (Laurentia) Open
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 membe…
View article: Trilobite fauna of the Telt Bugt Formation (Cambrian Series 2–Miaolingian Series), western North Greenland (Laurentia)
Trilobite fauna of the Telt Bugt Formation (Cambrian Series 2–Miaolingian Series), western North Greenland (Laurentia) Open
Trilobites dominantly of middle Cambrian (Miaolingian Series, Wuliuan Stage) age are described from the Telt Bugt Formation of Daugaard-Jensen Land, western North Greenland (Laurentia), which is a correlative of the Cape Wood Formation of …
View article: <i>Eldoradia</i>and<i>Acrocephalops</i>(Trilobita: Bolaspididae) from the middle Cambrian (Miaolingian) of northern Greenland (Laurentia)
<i>Eldoradia</i>and<i>Acrocephalops</i>(Trilobita: Bolaspididae) from the middle Cambrian (Miaolingian) of northern Greenland (Laurentia) Open
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 N…