Results 31 to 40 of about 177 (140)

Unusual occurrence of Cochlichnus in aeolian sandstones: evidence for a stiletto fly larval origin

open access: yesPapers in Palaeontology, Volume 12, Issue 3, May/June 2026.
Abstract Cochlichnus anguineus is an ichnotaxon recognized for its distinctive regular wavy morphology. It is a characteristic trace fossil typically associated with aquatic and marginal aquatic environments. However, in this study we examine its unusual occurrence in the aeolian sandstones of the Botucatu Formation (Lower Cretaceous, Paraná Basin ...
Bernardo de C. P. e M. Peixoto   +8 more
wiley   +1 more source

Formation, preservation, and interpretation of dinosaur tracks

open access: yesPalaeontology, Volume 69, Issue 1, January/February 2026.
Abstract The fossilized tracks of dinosaurs were first reported in the scientific literature in 1836, not long after Buckland's discovery of Megalosaurus. Tracks record aspects of dinosaur locomotion, diversity, and ecology. To recover this information from a track requires an understanding of the track forming process.
Peter L. Falkingham, Stephen M. Gatesy
wiley   +1 more source

A short trackway of tridactyl fossil footprints discovered in the Kaipara region of the North Island of New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 816-830, December 2025.
ABSTRACT Fossil trackways record snapshots of the lives of ancient animals. A short trackway of unwebbed tridactyl footprints from the Kaipara region of the North Island of New Zealand contributes to the growing record of fossil footprints discovered in Aotearoa.
Daniel B. Thomas   +4 more
wiley   +1 more source

Middle Pleistocene revelations: unravelling taphonomic processes in mammals including Mesotherium cristatum (Mesotheriidae, Notoungulata), Corralito Site, Córdoba Province, Argentina

open access: yesPalaeontology, Volume 68, Issue 4, July/August 2025.
Abstract Taphonomic studies of Cenozoic mammals are scarce. We report a study of the taphonomy of the Corralito site (Middle Pleistocene to Holocene), Córdoba Province, Argentina, which documents the last population of the South American native ungulate typotherid Mesotherium cristatum. We discovered two specimens of M.
Marcos Fernández‐Monescillo   +6 more
wiley   +1 more source

First soft body morphological data on the tracemaker of the endolithic bryozoan trace fossil Terebripora ramosa d'Orbigny, 1842

open access: yesJournal of Morphology, Volume 285, Issue 9, September 2024.
The ctenostome bryozoan genus Terebripora is one of four extant endolithic bryozoan taxa. Many questions surrounding its phylogeny and integrity as true biological taxon persist. This study investigates the tracemaker of Terebripora ramosa (TTR), and finds no typical vesicularioid features, instead supporting a close relationship to the other ...
Sebastian H. Decker   +3 more
wiley   +1 more source

Ichnotaxonomy of microboring traces in marine aphotic depths

open access: yesGeologia Croatica
Microboring traces in carbonate skeletal fragments deposited in aphotic depths of the oceans are studied, evaluated, and described with respect to their marine ecology and palaeoecology as well as ichnotaxonomy. Sand-size deep sea sediment particles dredged from depths ranging between 600 and 3266 m of the Bermuda Pedestal, Central Atlantic Ocean, the ...
Golubić, Stjepko   +3 more
openaire   +2 more sources

Ichnotaxonomy and paleobiology of a bird track assemblage from the Miocene Vinchina Formation of La Rioja Province, Argentina

open access: yesActa Palaeontologica Polonica
This study examines the bird ichnoassemblage of the Miocene Vinchina Formation (La Rioja Province, Argentina), recorded in fluvio-lacustrine environments.
Martin E. Farina   +2 more
doaj   +1 more source

Triassic chirotheriid footprints from the Swiss Alps: ichnotaxonomy and depositional environment (Cantons Wallis & Glarus) [PDF]

open access: yesSwiss Journal of Palaeontology, 2016
Autochthonous Triassic sediments of the Vieux Emosson Formation near Lac d’Emosson, southwestern Switzerland, have yielded assemblages with abundant archosaur footprints that are assigned to chirotheriids based on pentadactyl pes and manus imprints with characteristic digit proportions. Tridactyl footprints formerly considered as those of dinosaurs are
Klein, H   +6 more
openaire   +2 more sources

EXCEPTIONAL AND STRIKING 3D TRACK-DETACHED UNDERTRACK SPECIMENS FROM THE UPPER JURASSIC OF ASTURIAS (N SPAIN)

open access: yesRivista Italiana di Paleontologia e Stratigrafia
Vertebrate palaeoichnology often aims at the identification of the trackmaker by associating diagnostic features from the known taxa’s skeletal anatomy with its inferred footprint morphology, but deep penetrative tracks and/or deep, detached undertracks
LAURA PIÑUELA   +4 more
doaj   +1 more source

MORPHOLOGICAL DIVERSITY IN THE ICHNOGENUS URUGUAY ROSELLI AND ITS BEHAVIORAL IMPLICATIONS

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2015
The ichnogenus Uruguay, described from the Ascencio Formation of the Republica Oriental del Uruguay (Late Cretaceous-Paleogene), comprises clusters of fossil bee cells. This ichnogenus includes two ichnospecies, U. auroranormae Roselli and U.
Gabriela Cilla
doaj  

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