@misc{brinkman1987a1,
    author = "Brinkman, D. and Sues, H.-D",
    title = "A staurikosaurid dinosaur from the Ischigualasto Formation (Upper Triassic) of Argentina and the relationships of the Staurikosauridae",
    year = "1987",
    howpublished = "Palaeontology, v. 30, no. 3, p. 493-503",
    note = "talkorigins\_source = {true}; raw\_reference = {Brinkman, D., and Sues, H.-D., 1987, A staurikosaurid dinosaur from the Ischigualasto Formation (Upper Triassic) of Argentina and the relationships of the Staurikosauridae: Palaeontology, v. 30, no. 3, p. 493-503.}"
}

@article{martínez1992two,
    author = "Martínez, Ricardo N. and Forster, Catherine A. and May, Cathleen L.",
    title = "Two new carnivorous cynodonts from the Ischigualasto Formation (Upper Triassic) of Argentina",
    year = "1992",
    journal = "The Paleontological Society Special Publications",
    abstract = "Two skulls representing new forms of carnivorous cynodonts were discovered recently in the Upper Triassic (Carnian) Ischigualasto Formation of northwestern Argentina. These specimens are the first complete carnivorous cynodonts described from the Late Triassic of Argentina, and provide critical evidence for the evolution of cranial form between well known Middle Triassic cynodonts, such as Probainognathus, and the first mammals in the latest Triassic. The first skull (PVSJ 422) is proportionately long, with a posterior skull width only 35 per cent of basal skull length (9.5 cm.). Other distinctive features of the skull include the form of the postcanine crowns, which have two cusps posterior to the principal cusp and fine serations on their leading edges, and which overlap each other in an imbricate pattern. Postcanines 5-7 are subequal in size, overlap the dentary laterally, and are substantially larger than postcanines 2-4. The dental formula in the upper jaw is I4-C1-PC7, with the small first postcanine separated fore and aft by small diastemas. As in other advanced eucynodonts, no pineal foramen is present. Some postcranial elements, as yet unstudied, were also found with this specimen. The second skull (PVSJ 411) has broader proportions, the width between quadrates almost half that of basal skull length (7.5 cm.). These proportions, in combination with deep, curved zygomatic arches, resemble other Middle Triassic cynodonts such as Probelesodon. Distinctive features of this skull include bicusped postcanines in the upper jaw similar to those of Probelesodon, and a mandibular symphysis that extends back to the level of the fourth postcanine. The dental formula in the upper jaw is I4-C1-PC6. As in the first skull, a pineal foramen is absent. Several advanced cranial features, such as a fused mandibular symphysis, occur in both skulls and strongly suggest that these new forms belong within the Eucynodontia (Hopson, 1991). Other advanced features, such as the absence of a pineal foramen, further suggest that these new forms are closer to mammals than are traversodontid cynodonts. In contrast, other characters appear to be curiosly primitive, such as a short hard palate in the first skull. These new cynodonts thus may introduce previously unseen features and character combinations to the study of cynodont cranial evolution.",
    url = "https://doi.org/10.1017/s2475262200007620",
    doi = "10.1017/s2475262200007620",
    pages = "202-202",
    volume = "6"
}

@article{rogers1992paleoenvironment,
    author = "Rogers, Raymond R. and Forster, Catherine A. and May, Cathleen L. and Monetta, Alfredo and Sereno, Paul C.",
    title = "Paleoenvironment and taphonomy of the dinosaur-bearing Ischigualasto Formation (Upper Triassic, Argentina)",
    year = "1992",
    journal = "The Paleontological Society Special Publications",
    abstract = "The oldest-known dinosaurs (Herrerasaurus, Pisanosaurus) occur within the Ischigualasto Formation. Recent work in the formation has brought to light significant new material, including the complete skeleton of a new primitive dinosaur. We sketch below the paleoenvironment and faunal succession during the range of these early dinosaurs, and review some of the taphonomic factors that shaped their fossil record. The Ischigualasto Formation (Carnian?) is included within the Agua de la Peña Group, a series of continental Triassic deposits exposed in the Ischigualasto-Ville Union Basin of northwest Argentina. Ischigualasto sediments rest unconformably upon the carbonaceous fluvial/lacustrine Los Rastros Formation; this contact is characterized locally by marked angular discordance. The upper contact is gradational into red-beds of the Los Colorados Formation. Medium- to coarse-grained conglomeratic sandstones, siltstones, and silty mudstones dominate the section. Sand bodies are characterized by medium- to large-scale trough cross-stratification and broad lenticular/narrow sheet geometries, and are interpreted as deposits of shallow, low-sinuosity streams. Siltstones and mudstones show pervasive evidence of soil development, including root traces, nodular caliche horizons, and pedogenic slickensides. Deposits attributable to lacustrine/paludal sedimentation are scarce, and freshwater vertebrates and invertebrates are extremely rare. These data suggest an upland depositional setting on a low-relief alluvial plain with seasonal climate. The Ischigualasto vertebrate fauna includes archosaurs, rhynchosaurs, traversodontid and carnivorous cynodonts, and temnospondyl amphibians. Rhynchosaurs dominate (relative specimen abundance) in the lower half of the section, but are absent from the upper half. Traversodontid cynodonts occur throughout the formation, but are much more abundant up-section. Archosaurs, carnivorous cynodonts, and particularly temnospondyls are rare throughout, with dinosaurs limited to the lower half. No major stratigraphic or sedimentologic changes occur up-section, and there is no evidence for significant shifts in physical or chemical taphonomic processes. Thus, trends in relative taxon abundance likely record a true biotic signal (e.g., local extinction, immigration) rather than a taphonomically-driven preservational bias. Fossils are preserved as isolated carcasses or disarticulated elements, most often in fine-grained overbank facies. Bone beds and microsites are conspicuously absent. Temnospondyl remains were found within a local carbonaceous lens developed upon a sand body, suggesting autochthonous burial in an abandoned-channel setting. Isolated skulls, particularly those of the traversodontid Exaeretodon, are extremely common. Fifteen isolated crania of this cynodont were mapped in a single stratum with limited areal exposure. Abundant preservation of isolated therapsid crania has also been reported in the Beaufort Series (Permo-Triassic) of the Karoo Basin, South Africa (Smith, 1980). Post-disarticulation hydrodynamic sorting (enhanced by scavenging?) of an areally dispersed mass-mortality assemblage may explain this unusual occurrence.",
    url = "https://doi.org/10.1017/s2475262200008091",
    doi = "10.1017/s2475262200008091",
    pages = "249-249",
    volume = "6"
}

@article{rogers1993the,
    author = "Rogers, Raymond R. and Swisher, Carl C. and Sereno, Paul C. and Monetta, Alfredo M. and Forster, Catherine A. and Martínez, Ricardo N.",
    title = "The Ischigualasto Tetrapod Assemblage (Late Triassic, Argentina) and 40 Ar/ 39 Ar Dating of Dinosaur Origins",
    year = "1993",
    journal = "Science",
    abstract = "40 Ar/ 39 Ar dating of sanidine from a bentonite interbedded in the Ischigualasto Formation of northwestern Argentina yielded a plateau age of 227.8 ± 0.3 million years ago. This middle Carnian age is a direct calibration of the Ischigualasto tetrapod assemblage, which includes some of the best known early dinosaurs. This age shifts last appearances of Ischigualasto taxa back into the middle Carnian, diminishing the magnitude of the proposed late Carnian tetrapod extinction event. By 228 million years ago, the major dinosaurian lineages were established, and theropods were already important constituents of the carnivorous tetrapod guild in the Ischigualasto—Villa Unión Basin. Dinosaurs as a whole remained minor components of tetrapod faunas for at least another 10 million years.",
    url = "https://doi.org/10.1126/science.260.5109.794",
    doi = "10.1126/science.260.5109.794",
    number = "5109",
    pages = "794-797",
    volume = "260"
}

@article{currie2009stratigraphy,
    author = "Currie, Brian S. and Colombi, Carina E. and Tabor, Neil J. and Shipman, Todd C. and Montañez, Isabel P.",
    title = "Stratigraphy and architecture of the Upper Triassic Ischigualasto Formation, Ischigualasto Provincial Park, San Juan, Argentina",
    year = "2009",
    journal = "Journal of South American Earth Sciences",
    url = "https://doi.org/10.1016/j.jsames.2008.10.004",
    doi = "10.1016/j.jsames.2008.10.004",
    number = "1",
    pages = "74-87",
    volume = "27"
}

@article{martínez2010a,
    author = "Martínez, Ricardo and Alcober, Oscar",
    title = "A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina",
    year = "2010",
    journal = "ZooKeys",
    url = "https://doi.org/10.3897/zookeys.63.550",
    doi = "10.3897/zookeys.63.550",
    pages = "55-81",
    volume = "63"
}

@article{nmartínez2013a,
    author = "N. Martínez, Ricardo and Fernandez, Eliana and A. Alcober, Oscar",
    title = "A new non-mammaliaform eucynodont from the Carnian-Norian Ischigualasto Formation, Northwestern Argentina",
    year = "2013",
    journal = "Revista Brasileira de Paleontologia",
    url = "https://doi.org/10.4072/rbp.2013.1.05",
    doi = "10.4072/rbp.2013.1.05",
    number = "1",
    pages = "61-76",
    volume = "16"
}

@article{doi101371journalpone0111388,
    author = "Trotteyn, M Jimena and Ezcurra, Martín D",
    title = "Osteology of Pseudochampsa ischigualastensis gen. et comb. nov. (Archosauriformes: Proterochampsidae) from the early late triassic ischigualasto formation of Northwestern Argentina.",
    year = "2014",
    journal = "PloS one",
    abstract = {Proterochampsids are crocodile-like, probably semi-aquatic, quadrupedal archosauriforms characterized by an elongated and dorsoventrally low skull. The group is endemic from the Middle-Late Triassic of South America. The most recently erected proterochampsid species is "Chanaresuchus ischigualastensis", based on a single, fairly complete skeleton from the early Late Triassic Ischigualasto Formation of northwestern Argentina. We describe here in detail the non-braincase cranial and postcranial anatomy of this species and revisit its taxonomy and phylogenetic relationships. The phylogenetic analysis recovered 'Chanaresuchus ischigualastensis' as part of a trichotomy together with Gualosuchus reigi and Chanaresuchus bonapartei. Accordingly, "Chanaresuchus ischigualastensis" can be potentially more closely related to Gualosuchus reigi, or even Rhadinosuchus gracilis, than to Chanaresuchus bonapartei. In addition, after discussing previously claimed synapomorphies of Chanaresuchus, we could not find unambiguous support for the monophyly of the genus. As a result, we propose here the erection of the new genus Pseudochampsa for 'Chanaresuchus ischigualastensis', which results in the new combination Pseudochampsa ischigualastensis. The information provided here about the anatomy and taxonomy of Pseudochampsa ischiguaslastensis will be useful for future quantitative analyses focused on the biogeography and macroevolutionary history of proterochampsids.},
    url = "https://pmc.ncbi.nlm.nih.gov/articles/PMC4245112/",
    doi = "10.1371/journal.pone.0111388",
    pmcid = "PMC4245112",
    pmid = "25426846"
}

@article{césari2016palynology,
    author = "Césari, Silvia N. and Colombi, Carina",
    title = "Palynology of the Late Triassic Ischigualasto Formation, Argentina: Paleoecological and paleogeographic implications",
    year = "2016",
    journal = "Palaeogeography, Palaeoclimatology, Palaeoecology",
    url = "https://doi.org/10.1016/j.palaeo.2016.02.023",
    doi = "10.1016/j.palaeo.2016.02.023",
    pages = "365-384",
    volume = "449"
}

@article{wallace2019first,
    author = "Wallace, Rachel V. S. and Martínez, Ricardo and Rowe, Timothy",
    title = "First record of a basal mammaliamorph from the early Late Triassic Ischigualasto Formation of Argentina",
    year = "2019",
    journal = "PLOS ONE",
    url = "https://doi.org/10.1371/journal.pone.0218791",
    doi = "10.1371/journal.pone.0218791",
    number = "8",
    pages = "e0218791",
    volume = "14"
}

@article{pedernera2020paleobotany,
    author = "Pedernera, Tomás E. and Mancuso, Adriana C. and Ottone, Eduardo G. and Benavente, Cecilia A.",
    title = "Paleobotany of the Upper Triassic Los Rastros Formation, Ischigualasto–Villa Unión Basin, La Rioja, Argentina",
    year = "2020",
    journal = "Journal of South American Earth Sciences",
    url = "https://doi.org/10.1016/j.jsames.2020.102660",
    doi = "10.1016/j.jsames.2020.102660",
    pages = "102660",
    volume = "102"
}