Genre

Ichnogenre Taxon formel Éteint

Evazoum

Nicosia and Loi 2003

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Plage temporelle

Trias

Jurassique

Crétacé

Paléogène

Néogène

252 201 145 66 0 Ma

Occurrences PBDB

Groupe

Dinosaures

Herbivore Vivant au sol Terrestre

cliquer pour agrandir

Main evolutionary steps proposed for the morphofunctional and postural changes of the sauropod pedes. (A) Sauropod body mass through time (in metric tons) based on the sauropod body mass estimations of (41) (NB: data lacking for the second half of the Upper Cretaceous so illustrated here faded, in continuity with the data recorded in the Cretaceous). Schematic outlines of selected large specimens illustrated in the curve, including (from left to right) P. engelhardti, Vulcanodon karibaensis, R. brownei, G. brancai, Cedarosaurus weiskopfae, and Notocolossus gonzalezparejasi. (B) Projected evolutionary changes occurring in the sauropod pes associated with trend in body mass, including 1, skeletal and functional digitigrade pedal posture among basal non-sauropod sauropodomorphs with an incipient soft tissue pad (ISP) (see figs. S34 and S35); 2 and 3, expansion of a well-developed soft tissue pad beneath the elevated pedal bones (SP), resulting in a functionally plantigrade pes + retention of skeletal posture within a range of digitigrady; 4, retention of a soft tissue pad and yet undetermined trend toward more elevated bones; 5, conservation of the neomorphic soft tissue pad within all lineages. Selected examples of well-preserved non-sauropod sauropodomorph and sauropod pedal tracks illustrated above the trends, including (from left to right) Evazoum siriguii; Pseudotetrasauropus bipedoida, Eosauropus isp., Lavinipes cheminii; Kalosauropus pollex, Liujianpus shunan, Polyonyx gomesi; Parabrontopodus mcintoshi; Brontopodus birdi; Titanopodus mendozensis; and unnamed Asian sauropod track. Source of adapted drawing and notes are listed in table S9 and data S2. © Andréas Jannel, Steven W. Salisbury, Olga Panagiotopoulou · CC BY 4.0 · Wikimedia

PBDB ↗

Classification

Dinosauria Clade non classé

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Saurischia Clade non classé

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Sauropodomorpha Clade non classé

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Bagualosauria Clade non classé

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Plateosauria Clade non classé

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Anchisauria Clade non classé

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Prosauropoda Clade non classé

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Otozoidae Famille

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Evazoum Genre

Sites de découverte 11 sites géolocalisés

Répartition

Principaux pays

🇺🇸 États-Unis

🇮🇹 Italie

🇦🇺 Australie

🇬🇱 Groenland

Formations géologiques

Redonda

Montemarcello

Nugget Sandstone

Travenanzes

Blackstone

Sheep Pen Sandstone

Fleming Fjord

Wingate Sandstone

Distribution temporelle

Rhétien (205.7–201.4 Ma)

Norien (227.3–205.7 Ma)

Carnien (237–227.3 Ma)

Espèces (2)

Evazoum gatewayensis

Evazoum sirigui 237 Ma

Bibliographie

Description originale

U. Nicosia and M. Loi. 2003. Triassic footprints from Lerici (La Spezia, northern Italy). Ichnos 10:127-140 DOI ↗

Bibliographie (7)

A. Romilio, H. Klein, and A. Jannel, S. W. Salisbury. 2021. Saurischian dinosaur tracks from the Upper Triassic of southern Queensland: possible evidence for Australia’s earliest sauropodomorph trackmaker. Historical Biology DOI ↗

J. N. Lallensack, H. Klein, and J. Milàn, O. Wings, O. Mateus, L. B. Clemmensen. 2017. Sauropodomorph dinosaur trackways from the Fleming Fjord Formation of East Greenland: evidence for Late Triassic sauropods. Acta Palaeontologica Polonica 62(4):833-843 DOI ↗

M. G. Lockley and G. D. Gierlinski. 2009. A Grallator-dominated tracksite from the Chinle Group (Late Triassic), Moab, Utah. Geological Quarterly 53(4):433-440

S. D'Orazi Porchetti, U. Nicosia, and P. Mietto, F. M. Petti, M. Avanzini. 2008. Atreipus-like footprints and their co-occurrence with Evazoum from the upper Carnian (Tuvalian) of Trentino-Alto Adige. Studi Trentini di Scienze Naturali, Acta Geologica 83:277-287

A. P. Hunt and S. G. Lucas. 2007. Late Triassic tetrapod tracks of western North America. In S. G. Lucas & J. A. Spielmann (eds.), Triassic of the American West. New Mexico Museum of Natural History and Science Bulletin 40:215-230

M. G. Lockley, S. G. Lucas, and A. P. Hunt. 2006. Evazoum and the renaming of Northern Hemisphere “Pseudotetrasauropus”: implications for tetrapod ichnotaxonomy at the Triassic-Jurassic boundary. The Triassic-Jurassic Terrestrial Transition. New Mexico Museum of Natural History and Science Bulletin 37:199-206

U. Nicosia and M. Loi. 2003. Triassic footprints from Lerici (La Spezia, northern Italy). Ichnos 10:127-140 DOI ↗