Where: San Juan, Argentina (31.6° S, 67.3° W: paleocoordinates 40.6° S, 30.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Quebrada del Barro Formation, Norian (228.0 - 208.5 Ma)
• A late Norian age was recently proposed for this formation based on biostratigraphic correlations with the Los Colorados Formation from the neighboring Ischigualasto-Villa Unión Basin
• group of beds-level stratigraphic resolution
Environment/lithology: fluvial; red, muddy sandstone
Size class: macrofossils
Collected by R. Martínez et al. in 2014
Collection methods: surface (float), surface (in situ),
• PVSJ, Instituto y Museo de Ciencias Naturales, San Juan, Argentina
Primary reference: R. N. Martínez, C. Apaldetti, G. Correa, C. E. Colombi, E. Fernández, P. S. Malnis, A. Praderio, D. Abelín, L. G. Benegas, A. Aguilar-Cameo, and O. A. Alcober. 2015. A new Late Triassic vertebrate assemblage from northwestern Argentina. Ameghiniana 52(4):379-390 [R. Butler/R. Butler/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 182613: authorized by Richard Butler, entered by Richard Butler on 11.11.2016, edited by Emma Dunne, Matthew Carrano and Evangelos Vlachos
Creative Commons license: CC BY (attribution)
Taxonomic list
| Osteichthyes | |
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aff. Tritheledontidae indet. mammaliamorph | |
| Reptilia | |
Waluchelys cavitesta n. gen. n. sp.5
Waluchelys cavitesta n. gen. n. sp.5 Sterli et al. 2020 turtle "new species"; PVSJ 903, right, anterior and posterior border of the carapace, anterior and right bridge of the plastron, both pectoral girdles, thoracic vertebrae 1, 2 and 7–10; PVSJ 904, posterolateral border of the carapace, posterior lobe of the plastron, pelvic girdle, the last two thoracic vertebrae and two sacral vertebrae; 1092, a diagonal thin portion of the basicranium, posterior rim of the carapace with five caudal vertebrae, two isolated caudal vertebrae, and several isolated shell fragments; and 1093, posterior border of the carapace with remains of both ischia, both pubes, remains of the ilium, four caudal vertebrae, posterior lobe of the plastron, left pectoral girdle, and indeterminate shell remains
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Sphenotitan leyesi Martinez et al. 2013 lepidosaur PVSJ 900, complete skull and a partial postcranial skeleton
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Lucianovenator bonoi n. gen. n. sp.3
Lucianovenator bonoi n. gen. n. sp.3 Martinez and Apaldetti 2017 coelophysoid PVSJ 906, 1013, 899, 1004
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Dromomeron gigas n. sp.4
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Yelaphomte praderioi n. gen. n. sp.2
Yelaphomte praderioi n. gen. n. sp.2 Martínez et al. 2022 pterosaur Holotype: PVSJ 914, fragment of the rostrum preserving the anterior part of both maxillae and palatines from the anterior border of the narial fenestra as well as a posterior portion of both premaxillae
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| Pachagnathus benitoi | |
Pachagnathus benitoi n. gen. n. sp.2
Pachagnathus benitoi n. gen. n. sp.2 Martínez et al. 2022 Holotype: PVSJ 1080, partial mandibular symphysis lacking anterior end, preserving one tooth (lacking the apex) and three alveoli from the left side, and the roots of three teeth and two alveoli from the right side
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