Results 231 to 240 of about 99,980 (305)

An overview of the postcranial osteology of caecilians (Gymnophiona, Lissamphibia)

open access: yesThe Anatomical Record, Volume 309, Issue 3, Page 674-699, March 2026.
Abstract Caecilians comprise a relatively small (~220 species) group (Gymnophiona) of snake‐like or worm‐like, mostly tropical amphibians. Most adult caecilians are fossorial, although some species may live in aquatic or semi‐aquatic environments, either as larvae or adults.
Rodolfo Otávio Santos   +2 more
wiley   +1 more source

Several occurrences of osteomyelitis in dinosaurs from a site in the Bauru Group, Cretaceous of Southeast Brazil

open access: yesThe Anatomical Record, Volume 309, Issue 3, Page 642-648, March 2026.
Abstract This study investigates the occurrence of osteomyelitis in non‐avian dinosaurs, focusing on the Ibirá locality, a site with a high incidence of this pathological condition. We analyzed six new osteopathic sauropod specimens from the Upper Cretaceous of Brazil.
Tito Aureliano   +3 more
wiley   +1 more source

Primary Productivity and Habitat Depth Shape Developmental Mode in European Marine Gastropods

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Thorson's rule suggests that marine gastropods in colder, high‐latitude regions tend to have non‐pelagic (non‐drifting) larval development. However, this study on 94 European gastropod species found that the rule disappears when examined at finer spatial scales, with temperature and phylogeny having little influence.
Nicolás Weidberg   +3 more
wiley   +1 more source

Upper Cretaceous Ammonites of California PartⅠ [PDF]

open access: yesMemoirs of the Faculty of Science, Kyūsyū University. Series D, Geology, 1959
openaire   +1 more source

New Species of Babinskaiidae (Insecta: Neuroptera) From the Mid‐Cretaceous of Myanmar and the Morphological Divergence of the Family Across the Cretaceous

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
Two new species of Babinskaiidae are reported from the mid‐Cretaceous of Myanmar and the morphological divergence of the family across the Cretaceous is quantified. The Babinskaiidae assemblages from the Lower Cretaceous Crato Formation and the Upper Cretaceous Kachin amber are separated by a pronounced morphological divergence in both overall size and
Xiumei Lu   +3 more
wiley   +1 more source

Using Geophysical Observations of a Tracer Injection in a Riparian Aquifer to Explore How Bimodal Transport and Mixing Influences Nitrate Processing

open access: yesHydrological Processes, Volume 40, Issue 3, March 2026.
Our results embrace a simple conceptual model of preferential flow to illuminate the relationships among riparian groundwater nitrate concentration, flow dynamics, and substrate composition in stream corridors loaded with elevated nitrate from agricultural activities.
Jack W. Poole   +4 more
wiley   +1 more source

Seismic Site Effects in Owhiro Bay Quarry, Wellington: Field Observations and Numerical Modelling

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
Local topography and geology are well known factors affecting the intensity of seismic shaking. We have investigated the seismic site effects at a site of the Owhiro Bay Quarry in Wellington, New Zealand, using instrumental records and numerical models.
Lukas Janku, Marlene Villeneuve
wiley   +1 more source

Aeolian and Biogeochemical Transformations of Detrital Gold Morphology in the Pool Burn Basin, Central Otago, New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The Pool Burn basin is a tectonic depression that became almost isolated from the regional drainage system by river reorientation during Pleistocene uplift of surrounding ridges. Consequently, detrital gold in the basin was largely locally derived, from supergene zones on orogenic deposits and recycled from paleoplacers in erosional remnants of Miocene
Marshall Palmer, Dave Craw
wiley   +1 more source

New Zealand Geological Timescale 2025

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
New Zealand Geological Timescale 2025 (NZGT 2025) is the first comprehensive update and revision of the New Zealand Geological Timescale in a decade. The criteria used to establish age ranges of New Zealand Stages within the NZGT have been reviewed, calibrated, and revised where required against the 2023/04 International Chronostratigraphic Chart and ...
Christopher D. Clowes   +13 more
wiley   +1 more source

Seismic Stratigraphy of Eocene–Recent Mixed Depositional Systems on the SE New Zealand Continental Margin, Great South Basin

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.
The continental margin of SE New Zealand is strongly influenced by the Southland Current and associated water masses. This new seismic stratigraphic study of the margin has revealed a range of depositional mounds and erosional channels that document the close interaction of turbidity and bottom currents in shaping the margin from the Mid‐Eocene onward.
Onyekachi N. Ibezim   +3 more
wiley   +1 more source

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