Results 71 to 80 of about 1,022 (197)
New group of the Early Palaeozoic conodont-like fossils [PDF]
Estonian Journal of Earth Sciences, 2015 The paper is devoted to the Upper Cambrian and Tremadocian organophosphatic microfossils which were hitherto treated as conodonts and assigned mainly to the genera Coelocerodontus and Viirodus.
Hubert Szaniawski
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Island Arc, Volume 34, Issue 1, January/December 2025.ABSTRACT An ostracod assemblage from the Late Ordovician (Katian) Phu Ngu Formation of northern Vietnam, South China paleoplate, yields typical Baltic and Laurentian‐affinity genera together with some endemic forms. Detailed paleontological and sedimentary analysis of the Phu Ngu Formation suggests it was deposited in a deeper marine forearc setting ...
Anna McGairy +9 more
wiley +1 more source
First record of Podichnus in orthide brachiopods from the Lower Ordovician (Tremadocian) of NW Argentina and its relation to the early use of an ethological strategy [PDF]
, 2014 Well preserved etchings from the pedicle attachment of brachiopods occur on orthide brachiopod shells from Lower Ordovician (Tremadocian) of NW Argentina. Under the name Podichnus conicus isp. n.
A. Santos +9 more
core +1 more source
, 2015 The Tremadocian of the East Alborz Region is dominated by condensed fine clasticsediments. These beds have yielded low to medium diversity trilobite associations, which belong to theolenid, nileid and raphiophorid biofacies, characteristic of an outer ...
Popov, L +7 more
core +2 more sources
Papers in Palaeontology, Volume 10, Issue 5, September/October 2024.Abstract New Floian and early middle Darriwilian brachiopod assemblages of the San José Formation of the Eastern Cordillera of Peru are presented. A new genus and species, Apurimella santiagoi, and two new species, Phragmorthis henrylunae and Nocturnellia ashaninka, are described.
Jorge Colmenar +2 more
wiley +1 more source
How to engineer a habitable planet: the rise of marine ecosystem engineers through the Phanerozoic
Palaeontology, Volume 67, Issue 5, September/October 2024.Abstract Ecosystem engineers are organisms that modify their physical habitats in a way that alters resource availability and the structure of the communities they live in. The evolution of ecosystem engineers over the course of Earth history has thus been suggested to have been a driver of macroevolutionary and macroecological changes that are ...
Alison T. Cribb, Simon A. F. Darroch
wiley +1 more source
Papers in Palaeontology, Volume 10, Issue 3, May/June 2024.Abstract The documentation of cuticular micro‐ornament is vital for the taxonomic assignment of palaeoscolecids: vermiform lower Palaeozoic ecdysozoans interpreted as stem‐group priapulans or early diverging panarthropods. This is due to the absence of the character‐rich proboscis and tail hooks in palaeoscolecid material not from Burgess Shale‐type ...
Richard J. Howard +4 more
wiley +1 more source
Geophysical Research Letters, Volume 51, Issue 8, 28 April 2024.Abstract The Cambro‐Ordovician interval marks a significant transition from extinction to bio‐diversification in deep time. However, the relationship of bio‐transition to volcanism, commonly characterized by mercury (Hg) systematics in sedimentary records, has not been examined.
Leibo Bian +6 more
wiley +1 more source
Journal of Palaeogeography, 2021 This study provides an overview and discussion of controls on the distribution of organic reefs during the Early Ordovican Period, in the Yangtze Platform, a region of epicontinental sedimentary rocks in South China.
Jian-Po Wang +5 more
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Some Upper Tremadocian graptolites from Norway
, 1963 (Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +2 more sources