Results 91 to 100 of about 8,830 (229)

Ostracods of Quaternary Sediments of the Province of Buenos Aires, Argentina [PDF]

open access: yes, 2015
We study the benthic ostracods from the vibro-core KP60Bis (39 ° 08'34 .8689'' S, 61 ° 46'10 .0278'') of the estuary of Bahía Blanca, province of Buenos Aires.
Kihn, Romina Gisela   +1 more
core  

An unusual titanosaur axis from the Upper Cretaceous of Brazil and its significance for sauropod anatomy and systematics

open access: yesThe Anatomical Record, Volume 309, Issue 11, Page 3137-3168, November 2026.
Abstract The Upper Cretaceous São José do Rio Preto Formation (Bauru Group, southeastern Brazil) has yielded a fragmentary but taxonomically diverse record of titanosaur sauropods, although elements from cervical series remain scarce. Here, we describe a nearly complete sauropod axis from the Vila Ventura Paleontological Area, representing an uncommon ...
Bruno A. Navarro   +7 more
wiley   +1 more source

A new species of Lonchidiidae (Hybodontiformes) from the Late Jurassic of Brazil (Aliança Formation, Jatobá Basin)

open access: yesThe Anatomical Record, Volume 309, Issue 11, Page 3091-3105, November 2026.
Abstract The Aliança Formation (Jatobá Basin) represents lacustrine deposits formed in oxygenated waters that hosted a diverse fauna, including Hybodontiform sharks. Within this group, the Family Lonchidiidae comprises 11 valid genera, with Parvodus previously reported in Brazilian deposits from the Brejo Santo Formation (Araripe Basin, Late Jurassic ...
Larissa de Souza Ribeiro   +1 more
wiley   +1 more source

Spectral Analysis of Carboniferous Rhythmites Indicates Tidal Modulation and Marine Connectivity in the Cumberland Basin (Joggins Formation, Atlantic Canada)

open access: yesBasin Research, Volume 38, Issue 6, November‐December 2026.
Statistically significant cyclicity preserved in Joggins Formation rhythmites is most consistent with tidal modulation. These findings provide new quantitative evidence that tidal energy propagated into the Cumberland Basin, supporting interpretations of marine connectivity during Late Carboniferous deposition.
Trevor B. Kelly, Grant D. Wach
wiley   +1 more source

Lake Sediments Exposed Under Warmer Temperatures Hatched a Lower Diversity of Microfauna From the Egg Bank

open access: yesFreshwater Biology, Volume 71, Issue 11, November 2026.
ABSTRACT Dormant structures produced by aquatic microorganisms are ecologically important for restoring ecosystems after extreme climatic events. Among these events, heat waves cause the desiccation of environments and expose sediments to high temperatures, which reduce the viability of dormant propagules.
Jonathan Rosa   +11 more
wiley   +1 more source

(Table 1) Early Miocene and late Oligocene ostracods in sediment core CRP-2A

open access: yes, 2000
(Table 1) Early Miocene and late Oligocene ostracods in sediment core CRP ...
Dingle, R V, R V Dingle (6974420)
core   +1 more source

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

open access: yesJournal of Anatomy, Volume 249, Issue 5, Page 1021-1032, November 2026.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack   +2 more
wiley   +1 more source

Lower Eocene Ostracods from the Rusayl Shale Formation of Oman

open access: yes, 1991
. A small fauna of ostracods is described from the Early Eocene of the Rusayl Shale of northern Oman. The fauna is dominated by Neocyprideis rusaylensis sp. nov., forming 95% of the ostracods.
Andrew Racey, Michael C. Keen
core   +1 more source

Onset of Thrusting at ca. 23 Ma in East Kunlun Mountains, Northern Tibet, Recorded by Syntectonic Strata

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract The timing of Cenozoic deformation in the East Kunlun Mountains, northern Tibet, is crucial for understanding plateau growth but remains disputed due to the scarcity of direct chronological constraints on specific tectonic structures. Here, we present a high‐density‐sampling magnetostratigraphic record from the Xiaohongshan section, interior ...
Leyi Li   +3 more
wiley   +1 more source

News records of phoresy and hyperphoresy among treefrogs, ostracods, and ciliates in bromeliad of Atlantic forest [PDF]

open access: yes, 2011
The bromeliad habitat contributes to a high biodiversity and we recorded three treefrog species as new phoretic agents of ostracods, and a first case of hyperphoresy among treefrogs, ostracods and ciliates, in these habitats of Atlantic Forest. Densities
P Dias   +9 more
core  

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