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Cited by 84Paleontology and Evolutionary BiologyEvolution and Paleontology StudiesComparative Animal Anatomy Studies

The DOI matches its Crossref record; 121 of the 124 references it cites were found in a registry or an index.

Osteology of the Middle Triassic archosaur Lewisuchus admixtus Romer (Chañares Formation, Argentina), its inclusivity, and relationships amongst early dinosauromorphs

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Bittencourt, Jonathas S., Arcucci, Andrea B., Marsicano, Claudia A., Langer, Max C.·2015·Journal of Systematic Palaeontology
DOI 10.1080/14772019.2013.878758
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Abstract

Lewisuchus admixtus is an enigmatic early dinosauriform from the Chañares Formation, Ladinian of Argentina, which has been recently considered a member of Silesauridae. Yet, it differs markedly from Late Triassic silesaurids in dental and vertebral anatomy. Indeed, a detailed redescription of its holotype allowed the identification of several features of the skeleton previously unrecognized amongst silesaurids. These include pterygoid teeth, a dorsomedial posttemporal opening on the otoccipital, foramina associated with cranial nerves X–XII on the caudal region of the prootic–otoccipital, and postaxial neck/trunk vertebrae with craniocaudally expanded neural spines. The presence of a single row of presacral scutes was also confirmed. Some elements previously referred to, or found associated with, the holotype, including a lower jaw, pedal elements and an astragalus, more probably correspond to proterochampsid remains. The anatomical information available for the holotype of L. admixtus was rescored into a new phylogenetic dataset for dinosauromorphs, mostly based on previous works. Lewisuchus admixtus and Pseudolagosuchus major are treated as distinct OTUs because their preserved skeletons mostly lack overlapping parts. The parsimony analysis supports the basal position of L. admixtus within dinosauriforms, prior to the silesaurid–dinosaur split, rather than at the base of Silesauridae. This suggests that a higher number of early dinosauriform clades branched in the Middle an…

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  • The dinosauriforms from the Chañares Formation are small-bodied forms with long, slender hindlimbs suitable for cursorial locomotion and comprise Marasuchus (formerly "Lagosuchus"), Pseudolagosuchus, and Lewisuchus.

    “The latter are small-bodied forms with long, slender hindlimbs suitable for cursorial locomotion and comprise Marasuchus (formerly “Lagosuchus”), Pseudolagosuchus, and Lewisuchus (9).”

    From Dating the origin of dinosaurs (2016) · cites this paper as [9]

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3 of the 124 references couldn’t be matched to a known paper.

Research works printed but not linked: 35

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Metadata

Authors
Bittencourt, J. S., Arcucci, A. B., Marsicano, C. A., & Langer, M. C.
Affiliations
  • Universidade Federal de Minas Gerais (BR)
  • National University of San Luis (AR)
  • Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
  • Universidade de São Paulo (BR)
ORCID
Venue
Journal of Systematic Palaeontology
Publisher
Informa UK Limited
Published
2014-03-31
Volume
13
Issue
3
Pages
189-219
ISSN
  • 1477-2019 (ISSN-L)
  • 1478-0941
DOI
10.1080/14772019.2013.878758
OpenAlex
W2115868563
Cited by
84
References
124
Citations by year
2026: 7 · 2025: 7 · 2024: 7 · 2023: 3 · 2022: 6 · 2021: 6 · 2020: 6 · 2019: 11 · 2018: 6 · 2017: 13 · 2016: 7 · 2015: 3 · 2014: 2
FWCI
6.08
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • Journal of Systematic Palaeontology (publishedVersion)
  • CONICET Digital (CONICET) (submittedVersion, cc-by-nc-sa)
Funders
  • Willi Hennig Society
  • Fundação de Amparo à Pesquisa do Estado de São Paulo
  • Universidade Federal do Rio Grande do Sul
  • Universidad de Buenos Aires
  • Universidade Federal de Minas Gerais
  • Secretaría de Ciencia y Técnica, Universidad de Buenos Aires
  • University of California Museum of Paleontology
Topics
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
  • Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
  • Health Sciences › Medicine › Anatomy › Comparative Animal Anatomy Studies
Keywords
Silesauridae, archosaurs, Chañares Formation, Ladinian, osteology, redescription, phylogenetic relationships, Proterochampsidae

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