Results 31 to 40 of about 159 (101)

Hominin and carnivore roles during the formation of the early Middle Pleistocene site of Loreto (Venosa Basin, southern Italy)

open access: yesJournal of Quaternary Science, Volume 40, Issue 7, Page 1252-1268, October 2025.
ABSTRACT The site of Loreto (Venosa Basin, Italy) was first discovered in 1929 and subsequently excavated during the latter half of the 20th century. The excavation revealed three archaeo‐palaeontological levels, with the lowermost level (Level A) yielding the largest number of remains.
Antonio Pineda   +6 more
wiley   +1 more source

Biostratigraphy and correlation of the Cambrian Series 2 (Stage 4) to Miaolingian (Wuliuan) Thorntonia Limestone, south‐eastern Georgina Basin (Queensland, Australia)

open access: yesPapers in Palaeontology, Volume 11, Issue 5, September/October 2025.
Abstract The Australian Cambrian stratigraphic record is one of the most complete for any continent. However, there is a general division, with older Cambrian rocks in South Australia (predominantly Terreneuvian, Stage 2 to Miaolingian, Wuliuan) and younger rocks in northern Australia (mostly latest Series 2, Stage 4 and younger), with minimal ...
Marissa J. Betts   +5 more
wiley   +1 more source

A new insect boring in fossil wood from the Iranian Upper Cretaceous

open access: yesPalaeontology, Volume 68, Issue 5, September/October 2025.
Abstract Here we describe Iranichnus farsensis igen. et isp. nov., a bioerosion trace in fossil wood characterized by a system of sinuous channels in the wood under the bark, also bearing small borings radially oriented within the channels. We attributed this to insects, most probably a beetle from one of the groups known to feed on wood just under the
Mehdi Ghaedi   +4 more
wiley   +1 more source

Presence of TGF-beta-like molecules in the embryonic development of the mollusc Viviparus ater [PDF]

open access: yes, 2003
The expression of TGF-b1- and TGF-b type II receptor-like molecules was examined by immunocytochemistry in the course of the embryonic development of the gonochoristic gastropod Viviparus ater.
FRANCHINI, Antonella, OTTAVIANI, Enzo
core  

Formation of Mg‐silicates in the microbial sediments of a saline, mildly alkaline coastal lake (Lake Clifton, Australia): Environmental versus microbiological drivers

open access: yesSedimentology, Volume 72, Issue 5, Page 1518-1547, August 2025.
ABSTRACT Recent interest in Mg‐rich silicate formation stems from its role as a valuable palaeoclimatic indicator in fluvio‐lacustrine environments and its insights into metal geochemical cycling. Traditionally, Mg‐silicate genesis in lacustrine contexts is linked to alkaline or saline conditions in closed, evaporitic basins.
Ramon Mercedes‐Martín   +8 more
wiley   +1 more source

Macrofaunal contributions to benthic nutrient fluxes revealed by radium disequilibrium

open access: yesLimnology and Oceanography, Volume 70, Issue 5, Page 1345-1358, May 2025.
Abstract The benthic flux of nutrients underpins marine food webs, influences conditions for life in the oceans, and contributes to climatic feedback. Estimates of these fluxes' contributions to macro‐ and micronutrient cycles are, however, highly variable, generating significant uncertainty in biogeochemical models.
Isabelle J. Cooper   +2 more
wiley   +1 more source

Smithian–Spathian carbonate geochemistry in the northern Thaynes Group influenced by multiple styles of diagenesis

open access: yesThe Depositional Record, Volume 11, Issue 2, Page 616-636, April 2025.
While the Smithian–Spathian boundary carbon isotopic excursion has been traditionally interpreted as capturing global carbon cycle behaviour, recent studies have suggested that at least some Early Triassic carbon isotopic excursions may incorporate influences from authigenic or early diagenetic processes.
Jordan P. Todes   +6 more
wiley   +1 more source

Cranial anatomy of Acynodon adriaticus and extreme durophagous adaptations in Eusuchia (Reptilia: Crocodylomorpha)

open access: yesThe Anatomical Record, Volume 307, Issue 12, Page 3653-3684, December 2024.
Abstract Acynodon adriaticus, a small eusuchian from the Late Cretaceous of Italy, is known for its well‐preserved cranial and postcranial material. Despite its excellent preservation, many details remain hidden due to the physical overlap between the elements and matrix obliteration.
Marco Muscioni   +5 more
wiley   +1 more source

Biogeochemical Reconstruction of Authigenic Carbonate Deposits at Methane Seep Site off Krishna‐Godavari (K‐G) Basin, Bay of Bengal

open access: yesGeochemistry, Geophysics, Geosystems, Volume 25, Issue 10, October 2024.
Abstract Active and relic marine methane‐seep sites are widely distributed globally and are distinguished by distinctive geology, biogeochemistry, and ecosystems. The discovery of methane‐seep sites in the Krishna‐Godavari (K‐G) basin has created exciting new opportunities for methane‐seep research in the Bay of Bengal.
S. P. K. Pillutla   +7 more
wiley   +1 more source

Intermediate Stages in the Embryonic Development of the Gastropod, Ilyanassa Obsoleta: Descriptive and Experimental Studies of Surface Morphogenesis. [PDF]

open access: yes, 1987
This study concerns morphogenesis in the embryo of the mud snail, Ilyanassa obsoleta, from the fourth to the seventh day of development (70 to 165 hours post-trefoil at 20$\\sp\\circ$C).
Tomlinson, Sarah Garvey
core  

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