Polar dinosaur tracks of the Wonthaggi Formation (Lower Cretaceous), Victoria, Australia and their palaeontological significance

Alcheringa An Australasian Journal of Palaeontology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 23

Published: Sept. 8, 2024

Language: Английский

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Heron-like tracks from the Dunvegan Formation (Cenomanian), British Columbia: evidence for convergence in avian foot morphology

Historical Biology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 14

Published: March 14, 2025

Language: Английский

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Cretaceous vertebrate tracks

Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 479 - 747

Published: Dec. 4, 2024

Language: Английский

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New evidence for avian and small non-avian theropod ichnotaxa from the Lower Cretaceous of Canada: Implications for theropod ichnodiversity

Cretaceous Research, Journal Year: 2022, Volume and Issue: 138, P. 105292 - 105292

Published: June 22, 2022

Language: Английский

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New mammal and bird tracks from the Lower Oligocene of the Ebro Basin (NE Spain): implications for the Palaeogene ichnological record

Historical Biology, Journal Year: 2022, Volume and Issue: 35(9), P. 1616 - 1636

Published: Aug. 26, 2022

The Ebro Basin (Spain) is one of the few worldwide areas where Palaeogene avian and mammal tracksites have been found. A new unpublished tracksite known as La Sagarreta here described. located in a sandstone-dominated outcrop from Early Oligocene Peralta Formation northern-central sector basin. Six different ichnotaxa identified. Four belong to mammals, including perissodactyl (cf. Plagiolophustipus isp), artiodactyl (Megapecoripeda isp. cf. Pecoripeda isp.) carnivoramorph tracks Canipeda isp.), other two (Aviadactyla vialovi Gruipeda dominguensis). presents high ichnodiversity with presence medium-sized member likely genus Plagiolophus (or relative), medium- small-sized that probably family Entelodontidae, medium-size unidentified carnivorous types birds. most diverse palaeontologic vertebrate records at central area basin during this age.

Language: Английский

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Earliest known Gondwanan bird tracks: Wonthaggi Formation (Early Cretaceous), Victoria, Australia

PLoS ONE, Journal Year: 2023, Volume and Issue: 18(11), P. e0293308 - e0293308

Published: Nov. 15, 2023

The fossil record for Cretaceous birds in Australia has been limited to rare skeletal material, feathers, and two tracks, a paucity shared with other Gondwanan landmasses. Hence the recent discovery of 27 avian footprints traces Early (Barremian-Aptian, 128-120 Ma) Wonthaggi Formation Victoria, amends their previous rarity there, while also confirming earliest known presence rest Gondwana. identity these tracks is verified by tridactyl forms, thin digits relative track lengths, wide divarication angles, sharp claws; three have hallux imprints. Track forms sizes indicate variety as tracemakers, some among largest reported from Cretaceous. Although continuous trackways are absent, close spacing similar alignments on bedding planes suggest gregariousness. occurrence this trace-fossil assemblage circumpolar fluvial-floodplain facies further implies seasonal behavior, trackmakers likely leaving floodplain surfaces during post-thaw summers.

Language: Английский

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Evaluation of Iranipeda abeli (Avian track) from the Zagros Mountains, SW Iran: re-examination of the original material and overview of primary sources

Historical Biology, Journal Year: 2023, Volume and Issue: unknown, P. 1 - 10

Published: Feb. 13, 2023

A slab with three tetradactyl avian footprints was excavated from the Agha Jari Formation (Mio-Pliocene) in Zagros Mountains, southwest Iran, early last century and named as Urmiornis abeli. The name had been used for didactyl bird fossil ichnogenus later revised to Iranipeda. Validity of Iranipeda abeli has discussed by authors recent decades, revision original material is necessary. Based on re-examination holotype I. reveals that this valid it differs long hallux, separate digit imprints size lateral II IV traces other large wading footprints. include ichnospecies: millumi intermedia emended diagnosis Ciconiidae nearest track-maker candidate type specimen collected lower part based lithostratigraphic position radiometric data, Late Miocene age.

Language: Английский

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Dinosaur trackways from the Upper Cretaceous Nichkesai Formation near Mayluu Suu City, Southern Tien Shan Mountains, north-western Kyrgyzstan

Royal Society Open Science, Journal Year: 2023, Volume and Issue: 10(5)

Published: May 1, 2023

Trackways provide essential data on the biogeographic distribution, locomotion and behaviour of dinosaurs. Cretaceous dinosaur trackways are abundant in Americas, Europe, North Africa East Asia, but less well documented Central Asia despite extensive exposure terrestrial sedimentary rocks region. Here we report presence bipedal, tridactyl near city Mayluu Suu, Jalal Abad Oblast, north-western Kyrgyzstan, first discovery trace fossils within country. The situated a steep slope uncovered by landslide around year 2000 highly landslide-affected area. Photogrammetry is used to digitally analyse conserve fossils. We infer shoreface setting for based locality sedimentology, discuss identity track makers highlight potential future trackway This contributes vital an otherwise sparse record spatio-temporal distribution dinosaurs Asia.

Language: Английский

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New Pleistocene avian ichnosites on South Africa’s Cape south coast

Ostrich, Journal Year: 2023, Volume and Issue: 94(2), P. 100 - 116

Published: April 3, 2023

AbstractTwelve new avian ichnosites have been identified on South Africa’s Cape south coast, adding to the 29 sites previously identified. More than half of these 41 are found along a 9-km stretch coastline east Still Bay. The provide first southern African trace fossil records dove, stork and heron families, as well possible ostrich trackway evidence probable eggshell fragments. They buttress previous inference large chronospecies during Pleistocene. preponderance large- mediumsized tracks can be attributed bias whereby larger, heavier birds easier recognise interpret. Four longest trackways ever occur within 350-m in Driefontein area, findings an enhanced picture Pleistocene avifauna region. Many fragile limited prospects endure, emphasising need document them through photogrammetry, regularly explore high-yield areas search further sites.Nouveaux d’oiseaux du Pléistocène sur la côte sud Cap en Afrique SudDouze nouveaux ont été identifiés Sud, s’ajoutant aux déjà identifiés. Plus de moitié ces se trouvent le long d’une bande côtière 9 kilomètres à l’est Les fournissent les premières traces fossiles pour l’Afrique australe des familles pigeons, cigognes et hérons, ainsi qu’une empreinte d’autruche indices probables fragments coquilles d’oeufs d’autruche. Ces évidences supportent l’hypothèse précédente présence chrono-espèces grande taille au cours Pléistocène. La prépondérance moyenne peut être attribuée un biais selon lequel empreintes plus grands lourds sont faciles reconnaître interpréter. Quatre longues pistes jamais identifiées une dans région Driefontein, nouvelles découvertes offrent image complète l’avifaune région. Beaucoup fragiles perspectives survie limitées, ce qui souligne nécessité documenter par photogrammétrie chercher régulièrement d’autres zones haut rendement littoral.Keywords: aeolianitesavian trackschronospeciesichnologyostrich eggshellsphotogrammetry

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The discovery of Wupus agilis in South Korea and a new quantitative analysis of intermediate ichnospecies between non-avian theropods and birds

Cretaceous Research, Journal Year: 2023, Volume and Issue: 155, P. 105785 - 105785

Published: Nov. 25, 2023

Language: Английский

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