Results 71 to 80 of about 31,568 (232)

Comparison of diverse mandibular mechanics during biting in Devonian lungfishes

iScience
Summary: Fossil lungfish from the Late Devonian Gogo Formation, Australia, feature some of the most remarkable and specialized mandible morphologies in their 415-million-year history.
Joshua Bland, Hugo Dutel, John A. Long, Matteo Fabbri, Joseph Bevitt, Kate Trinajstic, Olga Panagiotopoulou, Alice M. Clement   +7 more
doaj   +1 more source

Climatic change in northeastern Brazil: paleoparasitological data

Memorias do Instituto Oswaldo Cruz, 1993
Trichuris eggs were observed in Kerodon rupestris coprolites dated 9,000 years before present, collected in archeological sites of São Raimundo Nonato, northeastern Brazil.
Adauto Araujo, Adriana Rangel, Luiz Fernando Rocha Ferreira   +2 more
doaj   +1 more source

High‐Titanium Zircon Rims in Rhyolite – A Reflection of Adiabatic Ascent?

Geological Journal, EarlyView.
The ascent of granitic magma from source to emplacement is rapidly achieved through dyking, resulting in negligible heat loss to the surrounding wallrock (i.e., adiabatic). Zircon growth during ascent can record the changing magma conditions including adiabatic cooling and heating, resulting in high titanium rims on low titanium cores without ...
Carson Kinney, Holden Little, Chris Yakymchuk   +2 more
wiley   +1 more source

Detecting patterns of species diversification in the presence of both rate shifts and mass extinctions [PDF]

, 2015
Recent methodological advances are enabling better examination of speciation and extinction processes and patterns. A major open question is the origin of large discrepancies in species number between groups of the same age.
Laurent, Sacha, Robinson-Rechavi, Marc, Salamin, Nicolas   +2 more
core   +4 more sources

StratPal: An R package for creating stratigraphic paleobiology modelling pipelines

Methods in Ecology and Evolution
The fossil record is an important source of information to understand biological processes that take place over timescales not accessible to human observation or experiments. Fossil data are not a perfect reflection of past biological change, but a joint
Niklas Hohmann, Emilia Jarochowska
doaj   +1 more source

Turning setbacks into stepping-stones for growth in conservation paleobiology

Frontiers in Ecology and Evolution
Conservation paleobiology is a cross-disciplinary field that utilizes the geohistorical record of past life on Earth to inform present-day decisions in conservation and restoration and assist in planning for future natural resource management.
G. Lynn Wingard, Chris L. Schneider, Gregory P. Dietl, Gregory P. Dietl, Damien A. Fordham   +4 more
doaj   +1 more source

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

Geological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu, Mehmet Metin Dam, Serdar Ongan, Andrew Adewale Alola   +3 more
wiley   +1 more source

The last common bilaterian ancestor [PDF]

, 2002
Many regulatory genes appear to be utilized in at least superficially similar ways in the development of particular body parts in Drosophila and in chordates.
Davidson, Eric H., Erwin, Douglas H.
core  

Shared patterns in body size declines among crinoids during the Palaeozoic extinction events

Scientific Reports, 2021
Crinoids were among the most abundant marine benthic animals throughout the Palaeozoic, but their body size evolution has received little attention. Here, we compiled a comprehensive database on crinoid calyx biovolumes throughout the Palaeozoic. A model
Mariusz A. Salamon, Tomasz Brachaniec, Dorota Kołbuk, Anwesha Saha, Przemysław Gorzelak   +4 more
doaj   +1 more source