Pliocene Studies in Paleobiology, Paleoenvironment and Paleoclimate

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Sedimentology, Stratigraphy and Palaeontology".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1825

Special Issue Editors


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Guest Editor
Florence Bascom Geoscience Center, U.S. Geological Survey, 12201 Sunrise Valley Dr., MS926A, Reston, VA 20192, USA
Interests: micropaleontology; paleontology; paleoclimatology; environmental reconstruction; stratigraphic correlation and climate change

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Latinas in Earth and Planetary Sciences—GeoLatinas, Atmospheric, Oceanic & Earth Sciences Department, George Mason University, 4400 University Dr., Research Hall 275, Fairfax, VA 22030, USA
Interests: geologic past; environmental reconstruction; climate change; geological record; equity, inclusion, and retention in STEM

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Guest Editor
Department of Earth, Environmental, and Planetary Sciences, Institute at Brown for Environment and Society, Brown University, 85 Waterman St, Providence, RI 02912, USA
Interests: paleoclimatology; biomarker analysis; pliocene; environmental reconstruction; isotope geochemistry; field geology; inclusive education and science communication

Special Issue Information

Dear Colleagues,

In recent years, remarkable advances have been made in our understanding of the Pliocene epoch (5.3 Ma–2.6 Ma) in terms of environmental reconstruction, paleoclimate, proxy development, modeling, and the role of the Pliocene in informing potential impacts of future climate change. This Special Issue of Geosciences aims to gather high-quality original research articles, reviews, technical notes, and brief reports on Pliocene paleontology, biogeography, biodiversity, environmental proxies, novel methods, stratigraphy, paleoclimate records and modeling, etc.

We are keenly aware of the disproportionate impact of climate change; thus, we are particularly interested in research related to understudied regional dynamics, local ecosystems and/or processes, and their implications for understanding global-scale processes. Submissions from early career researchers (<10 years post-graduation) and authors from groups historically under-represented in the Earth sciences are encouraged and warmly welcomed.

Dr. Harry Dowsett
Dr. Rocío Paola Caballero-Gill
Dr. Lina C. Pérez-Angel
Guest Editors

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Keywords

  • pliocene
  • climate change
  • climate dynamics
  • geochemistry
  • paleontology
  • paleobiology
  • paleoclimate
  • paleoenvironment
  • paleoceanography
  • DEIA

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Published Papers (1 paper)

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Research

16 pages, 2854 KiB  
Article
Biofacies Analysis of Zanclean Sediments in Virginia: Unraveling the Past Through Benthic Foraminifera
by Whittney Spivey
Geosciences 2025, 15(2), 39; https://doi.org/10.3390/geosciences15020039 - 24 Jan 2025
Viewed by 325
Abstract
Early Pliocene sedimentary deposits are exposed at the surface along the James and York Rivers, across southeastern Virginia. The Zanclean age (5.33–3.60 Ma) Sunken Meadow Member of the Yorktown Formation records a relatively large-scale marine transgression in the Salisbury Embayment. A total of [...] Read more.
Early Pliocene sedimentary deposits are exposed at the surface along the James and York Rivers, across southeastern Virginia. The Zanclean age (5.33–3.60 Ma) Sunken Meadow Member of the Yorktown Formation records a relatively large-scale marine transgression in the Salisbury Embayment. A total of 15 samples were collected from an outcrop near Spring Grove, VA, for grain-size analysis and to document benthic and planktic foraminiferal assemblages. The sediments are generally moderately well-sorted, shelly fine sands. A total of 48 benthic taxa were recorded from the Sunken Meadow Member, though only 14 taxa occurred in proportions high enough to be included in the Q-mode cluster analysis (>3% of the total assemblage). Low numbers of planktic foraminifera indicate relatively shallow water deposition. Biofacies analysis shows three distinct biofacies groups in the Sunken Meadow Member and the benthic foraminiferal community shifts throughout the unit are indicative of changes in nutrient availability, surface productivity, and bottom water oxygenation. The results indicate a middle to outer neritic depositional environment similar to modern conditions found south of Cape Hatteras, NC. Full article
(This article belongs to the Special Issue Pliocene Studies in Paleobiology, Paleoenvironment and Paleoclimate)
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Benthic Foraminiferal Community Changes in Zanclean age (Pliocene) Sediments from Southeastern Virginia
Author: Spivey
Highlights: Zanclean age marine deposits are well exposed throughout the coastal plain in SE Virginia. Benthic foraminiferal communities are diverse, and indicative of early Pliocene environmental shifts in western Atlantic shallow shelf settings. This study builds on previous studies to better document Pliocene benthic foraminiferal communities.

Title: Comparing Oxygen Isotope Ratio and Clumped Isotope Seasonal Sea Surface Temperatures from Mercenaria spp. During the Plio-Pleistocene
Author: Braniecki
Highlights: Oxygen isotope ratios record average summer and winter temperatures of 28±1°C and 18±2°C during the MPWI, 28±1°C and 18±2°C during the early Pleistocene, and 30±4°C and 15±7°C in modern shells. Values of ∆47 range from 0.645‰ to 0.733‰. Based on these preliminary data, ∆47-based temperature estimates from M. mercenaria are consistent with both observational data and existing δ18O calibration estimates.

Title: Stratigraphic setting of a Pliocene marine vertebrate-bearing deposit in the Atacama Desert, northern Chile
Author: Valenzuela-Toro
Highlights: Los Negros is a fossil-rich outcrop of the Bahía Inglesa Formation, one of the most prolific Late Neogene marine fossil deposits in the Southern Hemisphere. We discussed the evidence for its assignation to the Pliocene, presenting the first stratigraphic study of the locality and laying the foundations for novel research on its fossil fauna.

Title: Changes in trophic structure of gastropod communities from the southwestern Caribbean during the late Neogene
Author: Thompson
Highlights: The Neogene western Caribbean is an ideal regional system to study mechanisms linking changes in physical environment and biological communities. Gastropods possess diverse feeding strategies and life habits, making them an ideal system to study these mechanisms. As planktonic productivity decreased in the western Caribbean, benthic communities were restructured.

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