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Endocranial Morphology of the Primitive Nodosaurid Dinosaur Pawpawsaurus campbelli from the Early Cretaceous of North America.
PLoS One. 2016; 11(3):e0150845.Plos

Abstract

BACKGROUND

Ankylosaurs are one of the least explored clades of dinosaurs regarding endocranial anatomy, with few available descriptions of braincase anatomy and even less information on brain and inner ear morphologies. The main goal of this study is to provide a detailed description of the braincase and internal structures of the Early Cretaceous nodosaurid Pawpawsaurus campbelli, based on recently made CT scans.

METHODOLOGY/PRINCIPAL FINDINGS

The skull of Pawpawsaurus was CT scanned at University of Texas at Austin (UTCT). Three-dimensional models were constructed using Mimics 18.0 (Materialise). The digital data and further processed 3D models revealed inaccessible anatomic structures, allowing a detailed description of the lateral wall of the braincase (obscured by other bones in the articulated skull), and endocranial structures such as the cranial endocast, the most complete inner ear morphology for a nodosaurid, and the interpretation of the airflow system within the nasal cavities.

CONSLUSIONS/SIGNIFICANCE

The new information on the endocranial morphology of Pawpawsaurus adds anatomical data to the poorly understand ankylosaur paleoneurology. The new set of data has potential use not only in taxonomy and phylogeny, but also in paleobiological interpretations based on the relative development of sense organs, such as olfaction, hearing and balance.

Authors+Show Affiliations

Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA), San Carlos de Bariloche, Argentina.School of Earth and Environmental Sciences, Seoul National University, Seoul, South Korea.Roy M. Huffington Department of Earth Sciences, Southern Methodist University, Dallas, United States of America.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

27007950

Citation

Paulina-Carabajal, Ariana, et al. "Endocranial Morphology of the Primitive Nodosaurid Dinosaur Pawpawsaurus Campbelli From the Early Cretaceous of North America." PloS One, vol. 11, no. 3, 2016, pp. e0150845.
Paulina-Carabajal A, Lee YN, Jacobs LL. Endocranial Morphology of the Primitive Nodosaurid Dinosaur Pawpawsaurus campbelli from the Early Cretaceous of North America. PLoS One. 2016;11(3):e0150845.
Paulina-Carabajal, A., Lee, Y. N., & Jacobs, L. L. (2016). Endocranial Morphology of the Primitive Nodosaurid Dinosaur Pawpawsaurus campbelli from the Early Cretaceous of North America. PloS One, 11(3), e0150845. https://doi.org/10.1371/journal.pone.0150845
Paulina-Carabajal A, Lee YN, Jacobs LL. Endocranial Morphology of the Primitive Nodosaurid Dinosaur Pawpawsaurus Campbelli From the Early Cretaceous of North America. PLoS One. 2016;11(3):e0150845. PubMed PMID: 27007950.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Endocranial Morphology of the Primitive Nodosaurid Dinosaur Pawpawsaurus campbelli from the Early Cretaceous of North America. AU - Paulina-Carabajal,Ariana, AU - Lee,Yuong-Nam, AU - Jacobs,Louis L, Y1 - 2016/03/23/ PY - 2015/09/28/received PY - 2016/02/19/accepted PY - 2016/3/24/entrez PY - 2016/3/24/pubmed PY - 2016/7/29/medline SP - e0150845 EP - e0150845 JF - PloS one JO - PLoS One VL - 11 IS - 3 N2 - BACKGROUND: Ankylosaurs are one of the least explored clades of dinosaurs regarding endocranial anatomy, with few available descriptions of braincase anatomy and even less information on brain and inner ear morphologies. The main goal of this study is to provide a detailed description of the braincase and internal structures of the Early Cretaceous nodosaurid Pawpawsaurus campbelli, based on recently made CT scans. METHODOLOGY/PRINCIPAL FINDINGS: The skull of Pawpawsaurus was CT scanned at University of Texas at Austin (UTCT). Three-dimensional models were constructed using Mimics 18.0 (Materialise). The digital data and further processed 3D models revealed inaccessible anatomic structures, allowing a detailed description of the lateral wall of the braincase (obscured by other bones in the articulated skull), and endocranial structures such as the cranial endocast, the most complete inner ear morphology for a nodosaurid, and the interpretation of the airflow system within the nasal cavities. CONSLUSIONS/SIGNIFICANCE: The new information on the endocranial morphology of Pawpawsaurus adds anatomical data to the poorly understand ankylosaur paleoneurology. The new set of data has potential use not only in taxonomy and phylogeny, but also in paleobiological interpretations based on the relative development of sense organs, such as olfaction, hearing and balance. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/27007950/Endocranial_Morphology_of_the_Primitive_Nodosaurid_Dinosaur_Pawpawsaurus_campbelli_from_the_Early_Cretaceous_of_North_America_ DB - PRIME DP - Unbound Medicine ER -