Results 91 to 100 of about 43,956 (239)

The fate of the homoctenids (Tentaculitoidea) during the Frasnian-Famennian mass extinction (Late Devonian) [PDF]

open access: yes, 2006
The homoctenids (Tentaculitoidea) are small, conical-shelled marine animals which are amongst the most abundant and widespread of all Late Devonian fossils.
Alberti GKB   +48 more
core   +1 more source

Allometric patterns in Rhamphorhynchus muensteri and their role in the paleoecology, life habits, and taxonomic framework of pterosaurs

open access: yesJournal of Anatomy, EarlyView.
The Graphical Abstract ilustrates the different allometric pattern within different Pterosauria groups, highlighting how the allometry influences the flight and habits of Pterosauria. Abstract Pterosaurs were the first vertebrates to achieve powered flight, a result of various unique anatomical adaptations, and significant morphological diversity ...
Gabriela Menezes Cerqueira   +6 more
wiley   +1 more source

Discriminating faunal assemblages and their palaeoecology based on museum collections : the Carboniferous Hurlet and Index limestones of western Scotland [PDF]

open access: yes, 2010
Historical collections of Scottish Carboniferous macrofossils stored at the British Geological Survey (BGS), Edinburgh include the sole remaining sources of palaeontological data from numerous localities.
Akhurst, M.C.   +3 more
core   +2 more sources

The Holocene vegetation dynamics and the formation of Neolithic and present-day Slovenian landscape

open access: yesDocumenta Praehistorica, 2001
This paper presents the results of palaeoecological research to investigate the Holocene vegetation development of the Slovenian landscape and the impact of the first farmers upon it.
Maja Andrič
doaj   +1 more source

An abrupt extinction in the Middle Permian (Capitanian) of the Boreal Realm (Spitsbergen) and its link to anoxia and acidification [PDF]

open access: yes, 2015
The controversial Capitanian (Middle Permian, 262 Ma) extinction event is only known from equatorial latitudes, and consequently its global extent is poorly resolved.
Beauchamp, Benoit   +7 more
core   +2 more sources

Early evolutionary history of the seed

open access: yesBiological Reviews, Volume 101, Issue 3, Page 1511-1553, June 2026.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

Anthromes and terrestrial carbon

open access: yes
PLANTS, PEOPLE, PLANET, EarlyView.
Anthony P. Walker   +5 more
wiley   +1 more source

Exploring the Potential of Serpulid External Tube Morphology for Rapid Grouping Assessment in Ecological Research: A Case Study From Southern New Zealand

open access: yesNew Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
In ecological field studies where species‐level identification is challenging, practical approaches based on external morphological traits may provide a useful basis for rapid assessments. Here, New Zealand serpulid worms were initially grouped based on their external calcareous tube morphology and subsequently sequenced using the 18S rRNA gene to ...
Tom Massué   +4 more
wiley   +1 more source

Gamma-ray spectrometry across the Upper Devonian basin succession at Kowala in the Holy Cross Mountains (Poland) [PDF]

open access: yes, 2003
The Upper Devonian sequence at Kowala in the Holy Cross Mountains was logged using gamma-ray spectrometry, for investigating the changes of oxygenation level in the Late Devonian basin.
Bond, D.P.G., Zaton, M.
core   +1 more source

Population structure of graptolite assemblages [PDF]

open access: yes, 1998
Graptolite rhabdosomes display a diverse suite of morphologies. The range of morphotypes present within most moderate to high diversity assemblages from the Ordovician and Silurian is similar, despite the different taxonomic composition of the faunas at ...
Brenchley   +27 more
core   +1 more source

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