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Baalsaurus mansillai gen. et sp. nov. a new titanosaurian sauropod (Late Cretaceous) from Neuquén, Patagonia, Argentina.
An Acad Bras Cienc. 2019; 91Suppl 2(Suppl 2):e20180661.AA

Abstract

We describe a dentary of a new titanosaur sauropod, Baalsaurus mansillai, gen. et sp. nov. from the Late Cretaceous of Patagonia, Argentina. The material comes from the Portezuelo Formation, Neuquén Group. Titanosaur sauropods lower jaws are scarce and only nine taxa with dentaries have been described. There are two types of morphology in titanosaur dentaries; "L" shaped or "U" shaped based on the shape, without a phylogenetic issue. In this paper; we recognize a new taxa, Baalsaurus mansillai, represented by an "L" shaped dentary with three apomorphic characters that are not present in other taxa: dentary alveoli with 10 teeth in the anterior ramus, a ventrally and anteriorly inclined symphysis and a wide ventral Meckelian groove surrounded by a thin lamina that forms a keel on the ventral border of the dentary.

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Authors+Show Affiliations

Calvo JO
Parque Natural Geo-Paleontológico Proyecto Dino, Grupo de Transferencia Proyecto Dino, Ruta Prov. 51, Km 65, Facultad de Ingeniería, Departamento de Geología y Petróleo, Universidad Nacional del Comahue, Bs. As. 1400, 8300, Neuquén, Argentina. Facultad de Ciencias Exactas y Naturales, Universidad Nacional de la Pampa, Av. Uruguay 151, 6300, Santa Rosa, La Pampa, Argentina.
Riga BG
ICB, Universidad Nacional de Cuyo, Laboratorio de Paleovertebrados, IANIGLA-CRICYT, CONICET, Avda. Ruiz Leal s/n, Parque General, San Martín 5500, Mendoza, Argentina.

MeSH

AnimalsArgentinaDinosaursFossilsJawPaleontologyPhylogenyTooth

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30569970

Citation

Calvo, Jorge O., and Bernardo Gonzalez Riga. "Baalsaurus Mansillai Gen. Et Sp. Nov. a New Titanosaurian Sauropod (Late Cretaceous) From Neuquén, Patagonia, Argentina." Anais Da Academia Brasileira De Ciencias, vol. 91Suppl 2, no. Suppl 2, 2019, pp. e20180661.
Calvo JO, Riga BG. Baalsaurus mansillai gen. et sp. nov. a new titanosaurian sauropod (Late Cretaceous) from Neuquén, Patagonia, Argentina. An Acad Bras Cienc. 2019;91Suppl 2(Suppl 2):e20180661.
Calvo, J. O., & Riga, B. G. (2019). Baalsaurus mansillai gen. et sp. nov. a new titanosaurian sauropod (Late Cretaceous) from Neuquén, Patagonia, Argentina. Anais Da Academia Brasileira De Ciencias, 91Suppl 2(Suppl 2), e20180661. https://doi.org/10.1590/0001-3765201820180661
Calvo JO, Riga BG. Baalsaurus Mansillai Gen. Et Sp. Nov. a New Titanosaurian Sauropod (Late Cretaceous) From Neuquén, Patagonia, Argentina. An Acad Bras Cienc. 2019;91Suppl 2(Suppl 2):e20180661. PubMed PMID: 30569970.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Baalsaurus mansillai gen. et sp. nov. a new titanosaurian sauropod (Late Cretaceous) from Neuquén, Patagonia, Argentina. AU - Calvo,Jorge O, AU - Riga,Bernardo Gonzalez, Y1 - 2018/12/17/ PY - 2018/06/27/received PY - 2018/08/20/accepted PY - 2018/12/21/pubmed PY - 2019/2/23/medline PY - 2018/12/21/entrez SP - e20180661 EP - e20180661 JF - Anais da Academia Brasileira de Ciencias JO - An Acad Bras Cienc VL - 91Suppl 2 IS - Suppl 2 N2 - We describe a dentary of a new titanosaur sauropod, Baalsaurus mansillai, gen. et sp. nov. from the Late Cretaceous of Patagonia, Argentina. The material comes from the Portezuelo Formation, Neuquén Group. Titanosaur sauropods lower jaws are scarce and only nine taxa with dentaries have been described. There are two types of morphology in titanosaur dentaries; "L" shaped or "U" shaped based on the shape, without a phylogenetic issue. In this paper; we recognize a new taxa, Baalsaurus mansillai, represented by an "L" shaped dentary with three apomorphic characters that are not present in other taxa: dentary alveoli with 10 teeth in the anterior ramus, a ventrally and anteriorly inclined symphysis and a wide ventral Meckelian groove surrounded by a thin lamina that forms a keel on the ventral border of the dentary. SN - 1678-2690 UR - https://www.unboundmedicine.com/medline/citation/30569970/Baalsaurus_mansillai_gen__et_sp__nov__a_new_titanosaurian_sauropod__Late_Cretaceous__from_Neuquén_Patagonia_Argentina_ DB - PRIME DP - Unbound Medicine ER -