Results 71 to 80 of about 115,378 (317)

New Paleogene mantises from the Oise amber and their evolutionary importance [PDF]

open access: yesActa Palaeontologica Polonica, 2019
Mantodea are rather scarce in the fossil record, especially those belonging to the mantise crown group. Four fossil mantids are described from the lowermost Eocene amber of Oise (France), two Chaeteessidae considered as “genus and species incertae sedis”,
Thomas Schubnel, Andre Nel
doaj   +1 more source

Eocene temperature gradients [PDF]

open access: yesNature Geoscience, 2017
[no abstract]
Tierney, Jessica E   +4 more
openaire   +6 more sources

Asian gliriform origin for arctostylopid mammals [PDF]

open access: yes, 2006
A
A Sulimski   +28 more
core   +2 more sources

Using dendroclimatic analysis of exotic deciduous conifers in an arboretum to document tree growth in response to climate change, Northeast Ohio, USA

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Rising temperatures and wetter conditions in the Midcontinent of North America are influencing climate responses in trees. Dendroclimatological analyses of four exotic deciduous conifer species from Secrest Arboretum, Northeast Ohio help identify past, present and future climate‐tree interactions.
Gregory Wiles   +6 more
wiley   +1 more source

Veľké bentické dierkavce z eocénnych glaukonitových pieskovcov magurského príkrovu (Orava a Javorníky) [PDF]

open access: yesGeologické práce. Správy, 2020
The aim of the work was to describe an assemblage of larger benthic foraminifers from quartz-glauconitic sandstones of the Bystrica Mb. of the Western Carpathian Magura Nappe.
Stanislav Buček, František Teťák
doaj  

Exquisitely Preserved Fossil Snakes of Messel: Insight into the Evolution, Biogeography, Habitat Preferences and Sensory Ecology of Early Boas

open access: yesDiversity, 2020
Our knowledge of early evolution of snakes is improving, but all that we can infer about the evolution of modern clades of snakes such as boas (Booidea) is still based on isolated bones.
Agustín Scanferla, Krister T. Smith
doaj   +1 more source

Geochemical analysis of Cenozoic fossil conifers at high latitudes: Implications for molecular preservation and environmental change [PDF]

open access: yes, 2010
Fossil materials record ancient life and their adapted environment. Arctic plant fossils are critical for our understanding of the Earth’s paleoenvironment when high latitudes were under ice-free conditions.
Witkowski, Caitlyn
core   +1 more source

New crania from Seymour Island (Antarctica) shed light on anatomy of Eocene penguins [PDF]

open access: yes, 2013
Antarctic skulls attributable to fossil penguins are rare. Three new penguin crania from Antarctica are here described providing an insight into their feeding function.
Acosta Hospitaleche, Carolina Ileana Alicia
core   +2 more sources

The predatory behavior of ants: an impressive panoply of morphological adaptations

open access: yesInsect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean   +6 more
wiley   +1 more source

Surface Ocean Cooling in the Eocene North Atlantic Coincides With Declining Atmospheric CO2

open access: yesGeophysical Research Letters, 2023
The Eocene (56–34 million years ago) is characterized by declining sea surface temperatures (SSTs) in the low latitudes (∼4°C) and high southern latitudes (∼8–11°C), in accord with decreasing CO2 estimates.
Gordon N. Inglis   +8 more
doaj   +1 more source

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