Palynology, paleoenvironments, and organic carbon isotope evolution in lagoonal Paleocene-Eocene boundary settings in North Belgium

Steurbaut, Étienne; Magioncalda, Roberto; Dupuis, Christian; Simaeys, Stefaan Van; Roche, Émile; Roche, Michael B.

doi:10.1130/0-8137-2369-8.291

Cited by 50 publications

(71 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thus, sedimentation at this site resumed during the PETM. The overall sequence stratigraphy appears similar to that of the adjacent section at Doel [Steurbaut et al, 2003] (see below (Figure 5b)). Similar to the New Jersey sites, the upper bound of the PETM at Woensdrecht is truncated by a sandstone unit that marks a sequence boundary (Figure 5a).…”

Section: Woensdrecht Southeastern North Seamentioning

confidence: 61%

“…Moreover, the LO of A. gippingensis at 626 mbs corresponds to upper Nannofossil Zone NP6 (early Thanetian at $58 Ma) throughout the North Sea [Bujak and Mudge, 1994;Powell et al, 1996]. However, sediments between $624 and 610 mbs contain abundant Apectodinium spp., including A. augustum, which characterize the PETM in many Northern Hemisphere sections [Bujak and Brinkhuis, 1998;Steurbaut et al, 2003;. Hence, these sediments were deposited during the PETM, an interpretation corroborated by a $5% negative step in d 13 C TOC from À23% to À28% at $624 mbs (Figure 5a).…”

Section: Woensdrecht Southeastern North Seamentioning

confidence: 95%

“…Increase in terrigenous sediment supply for Bass River and Wilson Lake is from Sluijs et al [2007b] and John et al [2008]. Numbers refer to the following sites: site 1, Lomonosov Ridge, Arctic Ocean (SL, TS ); site 2, Doel, North Sea (SL [Steurbaut et al, 2003]); site 3, Basque Region, Bay of Biscay (SL, TS Pujalte and Schmitz, 2006]); site 4, Forada, Central Northern Tethys (TS [Giusberti et al, 2007]); site 5, Turgay Straight (SL [Iakovleva et al, 2001]); site 6, Lodo Formation, California (SL [John et al, 2008]); site 7, Gebel Duwi, Central Southern Tethys (SL [Speijer and Morsi, 2002]); site 8, Tawanui, Southwestern Pacific (TS [Crouch et al, 2003b], SL [Crouch and Brinkhuis, 2005]); and site 9, Clarence River Valley, Southwestern Pacific (TS PETM [Hollis et al, 2005], TS other presumed hyperthermals [Nicolo et al, 2007]). …”

Section: Sea Level Indicatorsmentioning

confidence: 99%

“…Delfstoffen, 1918] were identified using dinocyst biostratigraphy [Munsterman, 2004] (Figure 5a). The occurrence of the taxon Apectodinium augustum, which is diagnostic for the PETM [Bujak and Brinkhuis, 1998;Steurbaut et al, 2003;Sluijs et al, 2007b], marks the location of the PETM between 626 and 610 mbs.…”

Section: Sea Level Indicatorsmentioning

confidence: 99%

“…The sections were deposited $15-20 km south of the Woendrecht section, and thereby closer to the paleo-shoreline [Steurbaut et al, 2003]. The two sequences are very similar [Steurbaut et al, 2003], and for brevity we only discuss the one at Doel (Figure 5b).…”

Section: Comparable Records At Other Marginal Marine Locations 521mentioning

confidence: 99%

See 4 more Smart Citations

Eustatic variations during the Paleocene‐Eocene greenhouse world

et al. 2008

View full text Add to dashboard Cite

[1] We reconstruct eustatic variations during the latest Paleocene and earliest Eocene ($58-52 Ma). Dinoflagellate cysts, grain size fractions, and organic biomarkers in marine sections at four sites from three continents indicate an increased distance to the coast during the Paleocene-Eocene thermal maximum (PETM). The same trend is recognized in published records from other sites around the world. Together, the data indicate a eustatic rise during the PETM, beginning 20 to 200 ka before the globally recorded negative carbon isotope excursion (CIE) at $55.5 Ma. Although correlations are tentative, we recognize other global transgressions during Chrons C25n and C24n. The latter may be associated with Eocene Thermal Maximum 2 ($53.5 Ma) or the ''X''-event ($52 Ma). These results suggest a link between global sea level and ''hyperthermal'' intervals, potentially because of the melting of small alpine ice sheets on Antarctica, thermal expansion of seawater, or both. However, the early onset of sea level rise relative to the CIE of the PETM suggests contributions from other mechanisms, perhaps decreasing ocean basin volume, on sea level rise.

show abstract

Section: Woensdrecht Southeastern North Seamentioning

confidence: 61%

Section: Woensdrecht Southeastern North Seamentioning

confidence: 95%

Section: Sea Level Indicatorsmentioning

confidence: 99%

Section: Sea Level Indicatorsmentioning

confidence: 99%

Section: Comparable Records At Other Marginal Marine Locations 521mentioning

confidence: 99%

See 3 more Smart Citations

Eustatic variations during the Paleocene‐Eocene greenhouse world

et al. 2008

View full text Add to dashboard Cite

show abstract

Shallow marine response to global climate change during the Paleocene‐Eocene Thermal Maximum, Salisbury Embayment, USA

et al. 2017

View full text Add to dashboard Cite

The Paleocene‐Eocene Thermal Maximum (PETM) was an interval of extreme warmth that caused disruption of marine and terrestrial ecosystems on a global scale. Here we examine the sediments, flora, and fauna from an expanded section at Mattawoman Creek‐Billingsley Road (MCBR) in Maryland and explore the impact of warming at a nearshore shallow marine (30–100 m water depth) site in the Salisbury Embayment. Observations indicate that at the onset of the PETM, the site abruptly shifted from an open marine to prodelta setting with increased terrestrial and fresh water input. Changes in microfossil biota suggest stratification of the water column and low‐oxygen bottom water conditions in the earliest Eocene. Formation of authigenic carbonate through microbial diagenesis produced an unusually large bulk carbon isotope shift, while the magnitude of the corresponding signal from benthic foraminifera is similar to that at other marine sites. This proves that the landward increase in the magnitude of the carbon isotope excursion measured in bulk sediment is not due to a near instantaneous release of 12C‐enriched CO2. We conclude that the MCBR site records nearshore marine response to global climate change that can be used as an analog for modern coastal response to global warming.

show abstract

Endocranial anatomy and phylogenetic position of the crocodylianEosuchus lericheifrom the late Paleocene of northwestern Europe and potential adaptations for transoceanic dispersal in gavialoids

Burke,

Boerman,

Perrichon

et al. 2024

The Anatomical Record

View full text Add to dashboard Cite

Eosuchus lericheiis a gavialoid crocodylian from late Paleocene marine deposits of northwestern Europe, known from a skull and lower jaws, as well as postcrania. Its sister taxon relationship with the approximately contemporaneous speciesEosuchus minorfrom the east coast of the USA has been explained through transoceanic dispersal, indicating a capability for salt excretion that is absent in extant gavialoids. However, there is currently no anatomical evidence to support marine adaptation in extinct gavialoids. Furthermore, the placement ofEosuchuswithin Gavialoidea is labile, with some analyses supporting affinities with the Late Cretaceous to early Paleogene “thoracosaurs.” Here we present novel data on the internal and external anatomy of the skull ofE. lericheithat enables a revised diagnosis, with 6 autapormorphies identified for the genus and 10 features that enable differentiation of the species fromEosuchus minor. Our phylogenetic analyses recoverEosuchusas an early diverging gavialid gavialoid that is not part of the “thoracosaur” group. In addition to thickened semi‐circular canal walls of the endosseous labyrinth and paratympanic sinus reduction, we identify potential osteological correlates for salt glands in the internal surface of the prefrontal and lacrimal bones ofE. lerichei. These salt glands potentially provide anatomical evidence for the capability of transoceanic dispersal withinEosuchus, and we also identify them in the Late Cretaceous “thoracosaur”Portugalosuchus. Given that the earliest diverging and stratigraphically oldest gavialoids either have evidence for a nasal salt gland and/or have been recovered from marine deposits, this suggests the capacity for salt excretion might be ancestral for Gavialoidea. Mapping osteological and geological evidence for marine adaptation onto a phylogeny indicates that there was probably more than one independent loss/reduction in the capacity for salt excretion in gavialoids.

show abstract

Palynology, paleoenvironments, and organic carbon isotope evolution in lagoonal Paleocene-Eocene boundary settings in North Belgium

Cited by 50 publications

References 0 publications

Eustatic variations during the Paleocene‐Eocene greenhouse world

Eustatic variations during the Paleocene‐Eocene greenhouse world

Shallow marine response to global climate change during the Paleocene‐Eocene Thermal Maximum, Salisbury Embayment, USA

Endocranial anatomy and phylogenetic position of the crocodylianEosuchus lericheifrom the late Paleocene of northwestern Europe and potential adaptations for transoceanic dispersal in gavialoids

Contact Info

Product

Resources

About