Swiss Journal of Palaeontology

, Volume 137, Issue 1, pp 83–93 | Cite as

Paleodiversity of Late Cretaceous Ankylosauria from Mexico and their phylogenetic significance

  • Héctor E. Rivera-SylvaEmail author
  • Eberhard Frey
  • Wolfgang Stinnesbeck
  • Gerardo Carbot-Chanona
  • Iván E. Sanchez-Uribe
  • José Rubén Guzmán-Gutiérrez
Regular Research Article


Isolated bones and osteoderms of ankylosaurian dinosaurs recovered from Late Cretaceous sediments of northern Coahuila, northeastern Mexico, have been identified as remains of nodosaurids. Here, we summarize these discoveries and provide a review on Mexican Ankylosauria from a taxonomic perspective. We also present a new taxon, Acantholipan gonzalezi gen. et sp. nov. from the Pen Formation and provide a phylogenetic analysis integrating the new taxon. A. gonzalezi is the first named ankylosaur from Mexico that adds to the currently rare nodosaurid diversity from southern Laramidia.


Dinosaur Nodosauridae Pen Formation Mexico Endemism Laramidia 



American Museum of Natural History, New York


College of Eastern Utah Prehistoric Museum, Price


Colección Paleontológica de Coahuila, Museo del Desierto, Saltillo


Sternberg Museum of Natural History, Hays


Instituto Nacional de Antropología e Historia, Mexico


Institute of Vertebrate Paleontology and Paleoanthropology, Beijing


Magyar Természettudományi Múzeum, Budapest


Museo del Desierto, Saltillo


Royal Ontario Museum, Toronto


Utah Museum of Natural History, Salt Lake City



We wish to thank the following friends and colleagues for their participation in the project: Lucía Alfaro Ortíz, Fernando Cabral Valdéz, Iván Alexander de León Aguirre (Gosta’n Koh), Héctor Munive Villalobos, Jorge Ortíz Mendieta, and Tatiana Sánchez Rodríguez. We are grateful to the Museo del Desierto in Saltillo, Mexico, and its chairman Arturo González for supporting this investigation. We thank The Willi Hennig Society made TNT freely available. Kenneth Carpenter and Xavier Pereda Suberbiola are acknowledged for their helpful comments on an earlier version of this paper. We thank José Ignacio Ruíz-Omeñaca (MUJA) and Tim Tokaryk (RSM) for their insightful comments on this paper. We want to give special recognition to Jay Nair (UQ) for the time and expertise he devoted to the improvement of this work and for his patience and help at all times, as well as to Daniel Marty, editor of the Swiss Journal of Palaeontology for providing us with editorial assistance when required. The Deutsche Forschungsgemeinschaft (DFG) covered travel and fieldwork expenses for EF (FR1314/19) and WS (STI128/24 and STI128/30). The digital photographs were treated by Volker Griener, Karlsruhe.

Supplementary material

13358_2018_153_MOESM1_ESM.txt (12 kb)
Supplementary material 1 (TXT 12 kb)


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Copyright information

© Akademie der Naturwissenschaften Schweiz (SCNAT) 2018

Authors and Affiliations

  • Héctor E. Rivera-Sylva
    • 1
    Email author
  • Eberhard Frey
    • 2
  • Wolfgang Stinnesbeck
    • 3
  • Gerardo Carbot-Chanona
    • 4
  • Iván E. Sanchez-Uribe
    • 1
  • José Rubén Guzmán-Gutiérrez
    • 1
  1. 1.Departamento de PaleontologíaMuseo del DesiertoSaltilloMexico
  2. 2.Geowissenschaftliche AbteilungStaatliches Museum für Naturkunde KarlsruheKarlsruheGermany
  3. 3.Institut für GeowissenschaftenUniversität HeidelbergHeidelbergGermany
  4. 4.Museo de Paleontología “Eliseo Palacios Aguilera”, Dirección de PaleontologíaSecretaría del Medio Ambiente e Historia NaturalTuxtla GutíerrezMexico

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