Results 71 to 80 of about 12,118 (234)
The evolution of reproduction in Ediacaran–Cambrian metazoans
Biological Reviews, Volume 100, Issue 5, Page 2084-2098, October 2025.ABSTRACT The evolution of reproductive style is a fundamental aspect of metazoan life history but has not been explored holistically through the Ediacaran–Cambrian rise of metazoans. Recent molecular clock analyses based on only unequivocal metazoan fossil calibrations suggest that Porifera were present by at least 590 million years ago (Ma), all major
Rachel A. Wood, Mary L. Droser
wiley +1 more source
Discriminating faunal assemblages and their palaeoecology based on museum collections : the Carboniferous Hurlet and Index limestones of western Scotland [PDF]
, 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 Depositional Record, Volume 11, Issue 4, Page 1107-1131, September 2025.Analysing Rare Earth Elements (REEs) and other trace elements together with stable isotope data in poorly preserved belemnites can provide valuable insights into early diagenetic pathways, water‐interaction processes, and even potential redox conditions.
Merve Özyurt
wiley +1 more source
Primary aragonite and high-Mg calcite in the late Cambrian (Furongian) : Potential evidence from marine carbonates in Oman [PDF]
, 2016 Acknowledgements Fieldwork and sampling was funded by Petroleum Development Oman during S. Al Marjibis's Ph.D. Their help is gratefully acknowledged. We also thank colleagues at the University of Aberdeen, Julie Dougans (SUERC) for assisting with stable ...
Brasier, Alexander T. +2 more
core +1 more source
Papers in Palaeontology, Volume 11, Issue 5, September/October 2025.Abstract The Australian Cambrian stratigraphic record is one of the most complete for any continent. However, there is a general division, with older Cambrian rocks in South Australia (predominantly Terreneuvian, Stage 2 to Miaolingian, Wuliuan) and younger rocks in northern Australia (mostly latest Series 2, Stage 4 and younger), with minimal ...
Marissa J. Betts +5 more
wiley +1 more source
Cruziana traces from the Late Silurian (Pridoli) carbonate shelf of Saaremaa, Estonia [PDF]
Estonian Journal of Earth Sciences, 2014 Late Pridoli Cruziana traces have recently been found in carbonate shelf sediments of the Ohesaare Formation on Saaremaa Island, Estonia. Cruziana isp. is interpreted here as a locomotory trace (repichnia) of an arthropod, possibly a trilobite.
Olev Vinn
doaj +1 more source
Ten simple rules to follow when cleaning occurrence data in palaeobiology
Palaeontology, Volume 68, Issue 5, September/October 2025.Abstract Large datasets of fossil occurrences, often downloaded from online community‐maintained databases, are a vital resource for understanding broad‐scale evolutionary patterns, such as how biodiversity has changed through time and space. Such datasets, however, are not infallible and must be ‘cleaned’ of inaccurate, incomplete, or duplicate data ...
Lewis A. Jones +9 more
wiley +1 more source
Late Middle Cambrian trilobites from Trial Ridge, southwestern Tasmania [PDF]
, 2001 The first Middle Cambrian trilobites to be described from southwestern Tasmania come from two localities within siltstone in the Trial Ridge area on the HUNTLEY 1:50 000 sheet. Sixteen trilobite taxa are described.
Brown, AV, Jago, JB
core +3 more sources
Palaeontology, Volume 68, Issue 5, September/October 2025.Abstract Understanding the evolution and phylogenetic distribution of morphologic traits is fundamental to macroevolutionary research. Despite decades of major advances and key insights from molecular systematics, organismal anatomical features remain a key source of biological data for both inferring phylogenies and investigating patterns of trait ...
David F. Wright, Melanie J. Hopkins
wiley +1 more source
Atractocybeloides, eine kleinwüchsige Trilobitengattung aus baltoskandischen Geschieben und ihrem Anstehenden [PDF]
Fossil Record, 2002 Aus mittel- bis oberordovizischen Geschieben werden fünf Taxa der kleinwüchsigen Trilobitengattung Atractocybeloides vorgestellt, davon die beiden neuen Arten Atractocybeloides nebeni n. sp. und Atractocybeloides oepiki n. sp.
H.-H. Krueger
doaj +1 more source