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Isaberrysaura mollensis
Taxonomy
Isaberrysaura mollensis was named by Salgado et al. (2017). Its type specimen is MOZ-Pv 6459, a partial skeleton, and it is a 3D body fossil. Its type locality is Los Molles, which is in a Bajocian deltaic mudstone in the Los Molles Formation of Argentina. It is the type species of Isaberrysaura.
Synonymy list
Year | Name and author |
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2017 | Isaberrysaura mollensis Salgado et al. p. 2 fig. 2–3 |
2020 | Isaberrysaura mollensis Dieudonné et al. |
2020 | Isaberrysaura mollensis Yang et al. p. 4 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Isaberrysaura mollensis Salgado et al. 2017
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Diagnosis
Reference | Diagnosis | |
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L. Salgado et al. 2017 | Isaberrysaura differs from all other ornithischian dinosaurs in the following autapomorphies: premaxilla with posterolateral process that does not contact the lacrimal, elongated maxilla and correlated increase in the tooth count and snout length, and the posterior process of the jugal at least as long as the anterior one. The phylogenetic analysis revealed that this dinosaur also differs from all other ornithischians in the following combination of synapomorphies: two supraorbitals incorporated into the orbital margin (char. 32, from 0 to 1, shared with Agilisaurus, Haya, Thescelosaurus and Pachycephalosauria), a broad contact between the postorbital and the parietal (char. 51, from 0 to 1, shared with Pachycephalosauria), subcircular supratemporal fenestrae (char. 66, from 0 to 1, shared with most ceratopsians), and an anteriorly downturned dentary row (char. 98, from 0 to 1, shared with Thyreophora). |