The Global Boundary Stratotype Section and Point (GSSP) for the base of the Coniacian Stage (Salzgitter-Salder, Germany) and its auxiliary sections (Słupia Nadbrzeżna, central Poland; Střeleč, Czech Republic; and El Rosario, NE Mexico)

Walaszczyk, Ireneusz; Čech, Stanislav; Crampton, James S.; Dubicka, Zofia; Ifrim, Christina; Jarvis, Ian; Kennedy, William J.; Lees, Jackie A.; Lodowski, Damian Gerard; Pearce, Martin A.; Peryt, Danuta; Sageman, Bradley B.; Schiøler, Poul; Todes, Jordan; Uličný, David; Voigt, Silke; Wiese, Frank; Linnert, Christian; Püttmann, Tobias; Toshimitsu, Seiichi

doi:10.18814/epiiugs/2021/021022

Cited by 18 publications

(6 citation statements)

References 87 publications

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“…Principal Auxiliary Section (Brack et al, 2005). Auxiliary Section (e.g., Molina et al, 2009;Walaszczyk et al, 2021). Global Auxiliary Stratotype (e.g., Walker et al, 2009Walker et al, , 2019Figs.…”

Section: Auxiliary Stratotype Sectionmentioning

confidence: 99%

“…Słupia Nadbrzeżna section, central Poland -Auxiliary section (Walaszczyk et al, 2021). Střeleč section, Czech Republic -Auxiliary section (Walaszczyk et al, 2021).…”

Section: Cretaceous System Coniacian Stagementioning

confidence: 99%

“…Słupia Nadbrzeżna section, central Poland -Auxiliary section (Walaszczyk et al, 2021). Střeleč section, Czech Republic -Auxiliary section (Walaszczyk et al, 2021). El Rosario section, northeastern Mexico -Auxiliary section (Walaszczyk et al, 2021).…”

Section: Cretaceous System Coniacian Stagementioning

confidence: 99%

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The Standard Auxiliary Boundary Stratotype: a proposed replacement for the Auxiliary Stratotype Point in supporting a Global boundary Stratotype Section and Point (GSSP)

et al. 2023

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Auxiliary boundary stratotypes have unquestionable value in extending the knowledge of a Global boundary Stratotype Section and Point (GSSP) between continents, biogeographic provinces, climatic zones, depositional facies and preservational states. Two kinds of such stratotypes are in use, the Auxiliary Stratotype Point and the Auxiliary Stratotype Section, although only the Auxiliary Stratotype Point is recognised by the International Commission on Stratigraphy (ICS). The Standard Auxiliary Boundary Stratotype, which is based on the Auxiliary Stratotype Section, is proposed here as a formal replacement for the Auxiliary Stratotype Point. As such, it would provide a detailed complementary expression of the boundary interval without the designation of a specific point -no such points can replicate the precise level defined by a GSSP either conceptually or in practice. We recommend that requirements for future Standard Auxiliary Boundary Stratotypes broadly follow ICS guidelines for GSSPs but be applied with greater flexibility. Past practice reveals inconsistency in the protocols used for approving such auxiliary boundary stratotypes. We propose that in future they require approval by the respective ICS subcommission. More than one Standard Auxiliary Boundary Stratotype may support a single GSSP but restraint should be exercised in approving them, and each will always be subordinate to the GSSP itself.

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Section: Auxiliary Stratotype Sectionmentioning

confidence: 99%

“…Słupia Nadbrzeżna section, central Poland -Auxiliary section (Walaszczyk et al, 2021). Střeleč section, Czech Republic -Auxiliary section (Walaszczyk et al, 2021).…”

Section: Cretaceous System Coniacian Stagementioning

confidence: 99%

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The Standard Auxiliary Boundary Stratotype: a proposed replacement for the Auxiliary Stratotype Point in supporting a Global boundary Stratotype Section and Point (GSSP)

et al. 2023

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“…The Turonian/Coniacian boundary, ratified in May 2021 by the International Union of Geological Sciences (IUGS), is defined by the first appearance of the inoceramid bivalve species Cremnoceramus deformis erectus and complemented by the Navigation Carbon Isotope Event (Walaszczyk et al., 2021 ). In the stratotype section (Salzgitter‐Sadler, Germany) and in the auxiliary sections of the GSSP there are no reliable calcareous nannofossil biohorizons closely associated with the Turonian/Coniacian boundary, although the boundary lies within Zone CC13 (Jarvis et al., 2021 ; Lees, 2008 ; Sikora et al., 2004 ; Voigt et al., 2021 ; Walaszczyk et al., 2021 ). Accordingly, at Site U1513 the Turonian/Coniacian boundary is inferred to fall within Zone CC13 between the LO of Marthasterites furcatus at 185.61 m CCSF and the LO of Micula staurophora at 166.98 m CCSF.…”

Section: Calcareous Plankton Bioevents and Integrated Biostratigraphymentioning

confidence: 99%

“…The absence at Site U1513 of the planktonic foraminifera Dicarinella concavata , whose LO occurs slightly below the stage criterion in the auxiliary sections of the GSSP (Walaszczyk et al., 2021 ), prevents the precise identification of the base of the Coniacian Stage. Therefore, in this study the Turonian/Coniacian boundary is tentatively placed at the midpoint (169.92 m CCSF) between the HO of the planktonic foraminifera F. maslakovae (172.87 m CCSF) and the LO of the calcareous nannofossil M. staurophora , which defines the base of Zone CC14 Zone following correlations with the record from Tanzania and Exmouth Plateau (NW Australia, ODP Hole 762) where the two taxa are recorded in the same stratigraphic order (Huber et al., 2017 ).…”

Section: Calcareous Plankton Bioevents and Integrated Biostratigraphymentioning

confidence: 99%

Late Cretaceous Paleoceanographic Evolution and the Onset of Cooling in the Santonian at Southern High Latitudes (IODP Site U1513, SE Indian Ocean)

Petrizzo

MacLeod

Watkins

et al. 2022

Paleoceanog and Paleoclimatol

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The latest Cenomanian to Santonian sedimentary record recovered at IODP Expedition 369 Site U1513 in the Mentelle Basin (SE Indian Ocean, paleolatitude 60°S at 85 Ma) is studied to interpret the paleoceanographic evolution in the Southern Hemisphere. The planktonic foraminiferal assemblage changes, the depth ecology preferences of different species, and the surface and seafloor temperature inferred from the stable isotopic values measured on foraminiferal tests provide meaningful information to the understanding of the Late Cretaceous climate. The hothouse climate during the Turonian‐Santonian, characterized by weak latitudinal temperature gradients and high atmospheric CO2 concentrations, is followed by a progressive cooling during the Campanian. At Site U1513 the beginning of this climatic transition is nicely recorded within the Santonian, as indicated by an ∼1‰ increase in δ18O values of planktonic foraminifera suggesting a decline in surface water paleotemperatures of 4°C. The onset of cooling is mirrored by changes in the planktonic foraminiferal assemblages including extinctions among surface and deep dwellers, appearances and diversification of newly evolving taxa, and changes from predominantly epifaunal oxic to infaunal dysoxic/suboxic taxa among co‐occurring benthic foraminifera. Overall, the data presented here document an interval in the Santonian during which the rate of southern high latitude cooling increased. Both surface and bottom waters were affected, although the cooling signal is more evident in the data for surface waters. This pattern of cooling ascribes the deterioration of the Late Cretaceous climate to decreased CO2 in the atmosphere and changes in the oceanic circulation correlated with enhanced meridional circulation.

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Large-sized Late Turonian–Early Coniacian (Late Cretaceous) inoceramid bivalves from Germany: taxonomic issues, temporal framework and palaeoecological implications

Niebuhr

Wilmsen

2022

PalZ

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A systematic-stratigraphic revision of selected large Late Turonian–Early Coniacian inoceramids of the lamarcki group from Germany showed that both historical specimens of Goldfuss (1836), introduced as Inoceramus annulatus and later becoming the types of Late Turonian I. lamarcki stuemckei Heinz, 1928a and Early Coniacian I. annulatus Goldfuss, 1836, respectively, are of Late Turonian age. I. stuemckei Heinz, 1928a, as emended herein, is well represented by its lectotype. Bulky isolated hinges from Upper Turonian strata, used by Heinz (1932a) to erect Heroceramus hercules, are just fragments of contemporaneous large I. stuemckei; H. hercules is thus invalid. The common Late Turonian I. stuemckei occurs facies-independent from near- to offshore settings and its first common appearance is an excellent marker for the substage base. I. annulatus Goldfuss, 1836 was later applied to very large forms first appearing in the mid-Early Coniacian. Thus, I. annulatus sensu Walaszczyk and Wood (1998) is poorly represented by its medium-sized latest Turonian lectotype, causing some nomenclatorial issues. I. stuemckei (heightmax 500 mm) and I. annulatus (heightmax one metre) are characterized by a stratigraphically abrupt shell enlargement and hinge buttressing across the Middle/Upper Turonian boundary and within the Early Coniacian, respectively. This shift to larger sizes, a common passive defense strategy against predation, is accompanied by widespread evidence for increased Late Turonian predation pressure by marine durophages. We thus speculate that the size increase in Late Turonian–Early Coniacian inoceramid bivalves is part of an escalating arms race between prey and predators, ultimately triggering Late Cretaceous inoceramid gigantism.

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The Global Boundary Stratotype Section and Point (GSSP) for the base of the Coniacian Stage (Salzgitter-Salder, Germany) and its auxiliary sections (Słupia Nadbrzeżna, central Poland; Střeleč, Czech Republic; and El Rosario, NE Mexico)

Cited by 18 publications

References 87 publications

The Standard Auxiliary Boundary Stratotype: a proposed replacement for the Auxiliary Stratotype Point in supporting a Global boundary Stratotype Section and Point (GSSP)

The Standard Auxiliary Boundary Stratotype: a proposed replacement for the Auxiliary Stratotype Point in supporting a Global boundary Stratotype Section and Point (GSSP)

Late Cretaceous Paleoceanographic Evolution and the Onset of Cooling in the Santonian at Southern High Latitudes (IODP Site U1513, SE Indian Ocean)

Large-sized Late Turonian–Early Coniacian (Late Cretaceous) inoceramid bivalves from Germany: taxonomic issues, temporal framework and palaeoecological implications

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