A Late Ordovician age for the Whirlpool and Power Glen formations, New York

Schröer, Laurenz; Vandenbroucke, Thijs R.A.; Hints, Olle; Steeman, Thomas; Verniers, Jacques; Brett, Carlton E.; Cramer, Bradley D.; McLaughlin, Patrick I.

doi:10.1139/cjes-2015-0226

Cited by 11 publications

(6 citation statements)

References 32 publications

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“…In addition to the undiagnostic material, at least eight taxa were identified in samples from the Ichinotani Valley section (Figure 2), all showing close affinity to early Paleozoic genera previously reported from Baltica, Laurentia and Gondwana (e.g. M. E. Eriksson et al, 2016;Hints, Paris, & Al-Hajri, 2015;Hints, Tonarová, & Desrochers, 2016;Schröer et al, 2016). The genus Oenonites is represented by four well-preserved maxillae (Figure 8(18,21,22)) and likely several minor apparatus elements such as lateral teeth (Figure 8(23,24)).…”

Section: Valley and From The Hitoegane Formation Of The Hitoegane Forestsupporting

confidence: 60%

Chitinozoans and scolecodonts from the Silurian and Devonian of Japan

et al. 2019

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Silurian and Devonian chitinozoans and scolecodonts are recorded from strata of the Hida‐Gaien Terrane, central Honshu. Silurian chitinozoans include Eisenackitina, Bursachitina, and the species Angochitina elongata. The latter provides a precise biostratigraphical tie between the Japanese succession and the Type Ludlow Series of the Welsh Borderland, UK, and indicates a Ludlow age (Gorstian or early Ludfordian) for the upper member of the Yoshiki Formation in the Ichinotani Valley. Chitinozoans from other Yoshiki Formation localities contain other specimens of Lagenochitinidae. Scolecodonts are more common than chitinozoans in the palynological residues, but are mostly represented by fragments or minor apparatus elements with a low biostratigraphical value. However, material from the Yoshiki and Fukuji Formations includes several species of Mochtyella as well as representatives of Oenonites, Kettnerites, Lunoprionella, Vistulella? and possibly other placognath taxa. Scolecodonts are also present in the Silurian Middle Member of the Gionyama Formation, Kyushu, including a well‐preserved jaw of Pistoprion, and fragments of putative Kettnerites and Oenonites. These finds of scolecodonts suggest close similarity in assemblages between Paleozoic polychaete faunas of Japanese terranes and those of Baltica‐Laurentia.

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Section: Valley and From The Hitoegane Formation Of The Hitoegane Forestsupporting

confidence: 60%

Chitinozoans and scolecodonts from the Silurian and Devonian of Japan

et al. 2019

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“…1, white star), where it overlies the Whirlpool Formation. In northwestern New York, data based on chitinozoans, cryptospores, acritarchs, and scolecodonts, as well as a prominent δ 13 C peak at the base of Journal of Paleontology 97(4):805-822 the Whirlpool Formation, suggest that the Whirlpool and overlying Power Glen Formation are Late Ordovician (late Katian and/or Hirnantian) in age (Schröer et al, 2016).…”

Section: Age Of Whirlpool Formation and Associated Stratamentioning

confidence: 99%

“…More recently, the Hirnantian Isotopic Carbon Excursion (HICE) of latest Ordovician (Hirnantian) age has been identified in the upper Queenston, Whirlpool, and Manitoulin formations in southern Ontario, and brachiopods and conodonts in the Manitoulin have been reinterpreted as consistent with that age (Stott and Jin, 2007; Bergström et al, 2011). In northwestern New York, microfossils suggest that the Whirlpool and Power Glen formations are Late Ordovician (late Katian and/or Hirnantian) (Schröer et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Corals and a cephalopod from the Whirlpool Formation (latest Ordovician, Hirnantian), Hamilton, Ontario: biostratigraphic and biogeographic significance

Elias,

Hewitt

2023

J. Paleontol.

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Solitary rugose corals assigned to Streptelasma rutkae n. sp. and an annulated orthoconic cephalopod identified as Gorbyoceras sp. occur in nearshore shallow-marine sandstone of the Whirlpool Formation in Hamilton, southern Ontario. They are the first macrofossils contributing to a modern understanding of the age and correlation of this stratigraphic unit. Streptelasma rutkae most closely resembles S. subregulare (Savage, 1913), which occurs widely in the Edgewood Province of the east-central United States, in strata considered latest Ordovician (Hirnantian). Gorbyoceras ranges into the latest Katian (latest Richmondian) in the Cincinnati Arch region. Thus, the occurrences of S. rutkae and Gorbyoceras sp. support other biostratigraphic and chemostratigraphic data suggesting that the Whirlpool Formation is latest Ordovician, rather than earliest Silurian as traditionally thought. They also indicate paleogeographic connections between the area of Whirlpool deposition in Ontario and the Edgewood Province and Cincinnati Arch region in the east-central United States UUID: http://zoobank.org/d1ded814-204d-4070-a469-52d3b6e259c7

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“…Eurypterids first appeared in the basin during the Late Ordovician, where they were found within siliciclastic facies in open marine environments (Caster and Kjellesvig-Waering 1964; Tollerton 2004). In the latest Ordovician–earliest Silurian, represented by the Whirlpool Formation, of western New York/southwestern Ontario (Schröer et al 2016), eurypterids began to appear in more nearshore settings with variable salinities (Tetreault et al 1994). From that time until the Middle Devonian, eurypterids were found locally in most major intervals in the Appalachian basin, but almost never in open-marine, offshore facies (Plotnick 1999).…”

Section: Geological Settingmentioning

confidence: 99%

Paleoecological and stratigraphic controls on eurypterid Lagerstätten: a model for preservation in the mid-Paleozoic

Vrazo

Brett

Ciurca³

2017

Paleobiology

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Recent studies of eurypterid paleoecology suggest that formation of eurypterid Lagerstätten in the mid-Paleozoic of Laurentia was controlled by the presence of an ecological–taphonomic window that recurred predictably in nearshore, marginal environments during transgressions. We tested this hypothesis by performing a high-resolution taxonomic, environmental, and stratigraphic survey and quantitative analysis of all Silurian–Lower Devonian eurypterid-bearing intervals in the Appalachian basin, the most prolific region for eurypterid remains in the world. Canonical correspondence analysis of sedimentological and faunal associations revealed a strong lithologic gradient between groupings of eurypterid genera and associated taxa across the basin, and a significant association of eurypterids with microbialites (thrombolites, stromatolites) and evaporitic structures. Field observations confirmed that, stratigraphically, eurypterids in the basin frequently occur above the microbialite structures and beneath evaporites and other indicators of increased salinity or subaerial exposure. Following interpretation of these features within a sequence stratigraphic framework, we present a preservational model in which (1) eurypterids inhabited nearshore settings following freshening conditions concomitant with minor transgressions, (2) their remains were subsequently buried by storms or microbialite sediment baffling, and (3) subsequent long-term preservation of tissues was facilitated by regression and cyclical shallowing-up successions that promoted hypersalinity and anoxia. In the central and southern region of the basin, where microbial structures and evidence for hypersalinity are less common, a similar pattern of cyclical shallowing-upward deposition within eurypterid-bearing units holds. Thus, eurypterid preservation appears to reflect a combination of ecological preferences and abiotic conditions that promoted inhabitation and eventual preservation within the same setting. This study provides the first quantitative support for a sea level–based control on preservation of eurypterids and adds to the growing body of evidence that suggests that analysis of exceptional preservation in the fossil record benefits from interpretation within a sequence stratigraphic framework.

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A Late Ordovician age for the Whirlpool and Power Glen formations, New York

Cited by 11 publications

References 32 publications

Chitinozoans and scolecodonts from the Silurian and Devonian of Japan

Chitinozoans and scolecodonts from the Silurian and Devonian of Japan

Corals and a cephalopod from the Whirlpool Formation (latest Ordovician, Hirnantian), Hamilton, Ontario: biostratigraphic and biogeographic significance

Paleoecological and stratigraphic controls on eurypterid Lagerstätten: a model for preservation in the mid-Paleozoic

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