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Original Articles

The ear region of edentates and the phylogeny of the Tardigrada (Mammalia, Xenarthra)

Pages 672-705 | Received 09 Jun 1993, Accepted 09 Jun 1994, Published online: 24 Aug 2010

Keep up to date with the latest research on this topic with citation updates for this article.

Read on this site (19)

Timothy Gaudin, Thomas Scaife, Nestor Toledo & Gerardo De Iuliis. (2024) Cranial osteology of the basal megatherioid sloth Schismotherium (Mammalia, Xenarthra) and its taxonomic implications. Historical Biology 36:2, pages 350-368.
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Timothy J. Gaudin, Alberto Boscaini, Bernardino Mamani Quispe, Rubén Andrade Flores, Marcos Fernández-Monescillo, Laurent Marivaux, Pierre-Olivier Antoine, Philippe Münch & François Pujos. (2023) Recognition of a new nothrotheriid genus (Mammalia, Folivora) from the early late Miocene of Achiri (Bolivia) and the taxonomic status of the genus Xyophorus. Historical Biology 35:6, pages 1041-1051.
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Alberto Boscaini, Néstor Toledo, Leandro M. Pérez, Matías L. Taglioretti & Robert K. Mcafee. (2022) New well-preserved materials of Glossotherium chapadmalense (Xenarthra, Mylodontidae) from the Pliocene of Argentina shed light on the origin and evolution of the genus. Journal of Vertebrate Paleontology 42:2.
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Sarah R. Stinnesbeck, Wolfgang Stinnesbeck, Eberhard Frey, Jerónimo Avilés Olguín & Arturo González González. (2021) Xibalbaonyx exinferis n. sp. (Megalonychidae), a new Pleistocene ground sloth from the Yucatán Peninsula, Mexico. Historical Biology 33:10, pages 1952-1963.
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P. Sebastián Tambusso & Richard A. Fariña. (2021) Ground sloth vertebrae identification through multivariate analysis. Historical Biology 33:9, pages 1412-1421.
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Ascanio D. Rincón, Andrés Solórzano, H. Gregory McDonald & Marisol Montellano-Ballesteros. (2019) Two new megalonychid sloths (Mammalia: Xenarthra) from the Urumaco Formation (late Miocene), and their phylogenetic affinities. Journal of Systematic Palaeontology 17:5, pages 409-421.
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Luciano Brambilla & Damián Alberto Ibarra. (2018) Archaeomylodon sampedrinensis, gen. et sp. nov., a new mylodontine from the middle Pleistocene of Pampean Region, Argentina. Journal of Vertebrate Paleontology 38:6.
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Manuel Ruiz-García, Diego Chacón, Tinka Plese, Ingrid Schuler & Joseph Mark Shostell. (2018) Mitogenomics phylogenetic relationships of the current sloth’s genera and species (Bradypodidae and Megalonychidae). Mitochondrial DNA Part A 29:2, pages 281-299.
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H. Gregory McDonald, James C. Chatters & Timothy J. Gaudin. (2017) A new genus of megalonychid ground sloth (Mammalia, Xenarthra) from the late Pleistocene of Quintana Roo, Mexico. Journal of Vertebrate Paleontology 37:3.
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H. Gregory McDonald, AscanioD. RincÓN & TimothyJ. Gaudin. (2013) A new genus of megalonychid sloth (Mammalia, Xenarthra) from the late Pleistocene (Lujanian) of Sierra de Perija, Zulia State, Venezuela. Journal of Vertebrate Paleontology 33:5, pages 1226-1238.
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Judith Babot, Daniel A. García López & TimothyJ. Gaudin. (2012) The most ancient xenarthran petrosal: morphology and evolutionary significance. Journal of Vertebrate Paleontology 32:5, pages 1186-1197.
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M. Susana Bargo, SergioF. Vizcaíno & RichardF. Kay. (2009) Predominance of orthal masticatory movements in the Early Miocene Eucholaeops (Mammalia, Xenarthra, Tardigrada, Megalonychidae) and other megatherioid sloths. Journal of Vertebrate Paleontology 29:3, pages 870-880.
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H. Gregory Mcdonald & Christian De Muizon. (2002) The cranial anatomy of Thalassocnus (Xenarthra, Mammalia), a derived nothrothere from the Neogene of the Pisco Formation (Peru). Journal of Vertebrate Paleontology 22:2, pages 349-365.
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M. Susana Bargo, SergioF. Vizcaíno, FernandoM. Archuby & R. Ernesto Blanco. (2000) Limb bone proportions, strength and digging in some Lujanian (Late Pleistocene-Early Holocene) mylodontid ground sloths (Mammalia, Xenarthra). Journal of Vertebrate Paleontology 20:3, pages 601-610.
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MichaelJ. Benton & Rebecca Hitchin. (1996) Testing the quality of the fossil record by groups and by major habitats. Historical Biology 12:2, pages 111-157.
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Articles from other publishers (67)

Gerardo De IuliisM. Susana Bargo, Néstor Toledo, Leonard J. S. TsujiSergio F. Vizcaíno. (2024) The Status of Eucholoeops fronto and E. lafonei (Xenarthra, Folivora, Megalonychidae) in the Systematics of the Early Miocene Eucholoeops (Santa Cruz, Argentina). Ameghiniana 61:1.
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Timothy J. Gaudin & Thomas Scaife. (2022) Cranial osteology of a juvenile specimen of Acratocnus ye (Mammalia, Xenarthra, Folivora) and its ontogenetic and phylogenetic implications . The Anatomical Record 306:3, pages 607-637.
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Daniel M. Casali, Alberto Boscaini, Timothy J. Gaudin & Fernando A. Perini. (2023) Morphological disparity and evolutionary rates of cranial and postcranial characters in sloths (Mammalia, Pilosa, Folivora). Palaeontology 66:1.
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Alberto Boscaini, Dawid A. Iurino, Raffaele Sardella, Timothy J. Gaudin & François Pujos. 2023. Paleoneurology of Amniotes. Paleoneurology of Amniotes 737 760 .
P. Sebastián Tambusso, Flávio Góis, Jorge Felipe Moura, Chiara Villa & Roberta Veronese do Amaral. 2023. Paleoneurology of Amniotes. Paleoneurology of Amniotes 711 736 .
Daniel M Casali, Alberto Boscaini, Timothy J Gaudin & Fernando A Perini. (2022) Reassessing the phylogeny and divergence times of sloths (Mammalia: Pilosa: Folivora), exploring alternative morphological partitioning and dating models. Zoological Journal of the Linnean Society 196:4, pages 1505-1551.
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Kévin Le Verger, Laureano R. González Ruiz & Guillaume Billet. (2021) Comparative anatomy and phylogenetic contribution of intracranial osseous canals and cavities in armadillos and glyptodonts (Xenarthra, Cingulata). Journal of Anatomy 239:6, pages 1473-1502.
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P. Sebastián Tambusso, Luciano Varela, Flávio Góis, Jorge Felipe Moura, Chiara Villa & Richard A. Fariña. (2021) The inner ear anatomy of glyptodonts and pampatheres (Xenarthra, Cingulata): Functional and phylogenetic implications. Journal of South American Earth Sciences 108, pages 103189.
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Alberto Boscaini, Dawid A. Iurino, Bernardino Mamani Quispe, Rubén Andrade Flores, Raffaele Sardella, François Pujos & Timothy J. Gaudin. (2020) Cranial Anatomy and Paleoneurology of the Extinct Sloth Catonyx tarijensis (Xenarthra, Mylodontidae) From the Late Pleistocene of Oruro, Southwestern Bolivia. Frontiers in Ecology and Evolution 8.
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Alberto Boscaini, Dawid A. Iurino, Raffaele Sardella, German Tirao, Timothy J. Gaudin & François Pujos. (2018) Digital Cranial Endocasts of the Extinct Sloth Glossotherium robustum (Xenarthra, Mylodontidae) from the Late Pleistocene of Argentina: Description and Comparison with the Extant Sloths. Journal of Mammalian Evolution 27:1, pages 55-71.
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Alberto Boscaini, François Pujos & Timothy J. Gaudin. (2019) A reappraisal of the phylogeny of Mylodontidae (Mammalia, Xenarthra) and the divergence of mylodontine and lestodontine sloths. Zoologica Scripta 48:6, pages 691-710.
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Frédéric Delsuc, Melanie Kuch, Gillian C. Gibb, Emil Karpinski, Dirk Hackenberger, Paul Szpak, Jorge G. Martínez, Jim I. Mead, H. Gregory McDonald, Ross D.E. MacPhee, Guillaume Billet, Lionel Hautier & Hendrik N. Poinar. (2019) Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths. Current Biology 29:12, pages 2031-2042.e6.
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Luciano Varela, P Sebastián Tambusso, H Gregory McDonald & Richard A Fariña. (2019) Phylogeny, Macroevolutionary Trends and Historical Biogeography of Sloths: Insights From a Bayesian Morphological Clock Analysis. Systematic Biology 68:2, pages 204-218.
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Alberto Boscaini, Timothy J Gaudin, Bernardino Mamani Quispe, Philippe Münch, Pierre-Olivier Antoine & François Pujos. (2019) New well-preserved craniodental remains of Simomylodon uccasamamensis (Xenarthra: Mylodontidae) from the Pliocene of the Bolivian Altiplano: phylogenetic, chronostratigraphic and palaeobiogeographical implications . Zoological Journal of the Linnean Society 185:2, pages 459-486.
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Néstor Toledo, Gerardo De Iuliis, Sergio F. Vizcaíno & M. Susana Bargo. (2017) The Concept of a Pedolateral Pes Revisited: The Giant Sloths Megatherium and Eremotherium (Xenarthra, Folivora, Megatheriinae) as a Case Study. Journal of Mammalian Evolution 25:4, pages 525-537.
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Gerardo De Iuliis. (2017) Recent Progress and Future Prospects in Fossil Xenarthran Studies, with Emphasis on Current Methodology in Sloth Taxonomy. Journal of Mammalian Evolution 25:4, pages 449-458.
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Sarah R. Stinnesbeck, Eberhard Frey & Wolfgang Stinnesbeck. (2018) New insights on the paleogeographic distribution of the Late Pleistocene ground sloth genus Xibalbaonyx along the Mesoamerican Corridor. Journal of South American Earth Sciences 85, pages 108-120.
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Timothy J Gaudin, Patrick Hicks & Yamil Di Blanco. (2018) Myrmecophaga tridactyla (Pilosa: Myrmecophagidae). Mammalian Species 50:956, pages 1-13.
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Alberto Boscaini, Dawid A. Iurino, Guillaume Billet, Lionel Hautier, Raffaele Sardella, German Tirao, Timothy J. Gaudin & François Pujos. (2018) Phylogenetic and functional implications of the ear region anatomy of Glossotherium robustum (Xenarthra, Mylodontidae) from the Late Pleistocene of Argentina. The Science of Nature 105:3-4.
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Augusto RaccoJuan C. FernicolaM. Susana BargoSergio F. VizcaínoGerardo De Iuliis. (2018) On the Type of Schismotherium fractum Ameghino, 1887 (Xenarthra, Folivora, Megatherioidea) from the Early Miocene Santa Cruz Formation (Santa Cruz Province, Argentina) . Ameghiniana 55:1, pages 117-125.
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Timothy J. Gaudin & Lauren M. Lyon. (2017) Cranial osteology of the pampathere Holmesina floridanus (Xenarthra: Cingulata; Blancan NALMA), including a description of an isolated petrosal bone . PeerJ 5, pages e4022.
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Eli Amson, Patrick Arnold, Anneke H. van Heteren, Aurore Canoville & John A. Nyakatura. (2017) Trabecular architecture in the forelimb epiphyses of extant xenarthrans (Mammalia). Frontiers in Zoology 14:1.
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H. Gregory McDonald & Oscar Carranza-Castañeda. (2017) Increased xenarthran diversity of the Great American Biotic Interchange: a new genus and species of ground sloth (Mammalia, Xenarthra, Megalonychidae) from the Hemphillian (late Miocene) of Jalisco, Mexico. Journal of Paleontology 91:5, pages 1069-1082.
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Sarah R. Stinnesbeck, Eberhard Frey, Jerónimo Avíles Olguín, Wolfgang Stinnesbeck, Patrick Zell, Heinrich Mallison, Arturo González González, Eugenio Aceves Núñez, Adriana Velázquez Morlet, Alejandro Terrazas Mata, Martha Benavente Sanvicente, Fabio Hering & Carmen Rojas Sandoval. (2017) Xibalbaonyx oviceps, a new megalonychid ground sloth (Folivora, Xenarthra) from the Late Pleistocene of the Yucatán Peninsula, Mexico, and its paleobiogeographic significance. PalZ 91:2, pages 245-271.
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Ascanio D. Rincón, Andrés Solórzano, H. Gregory McDonald & Mónica Núñez Flores. (2016) Baraguatherium takumara, Gen. et Sp. Nov., the Earliest Mylodontoid Sloth (Early Miocene) from Northern South America. Journal of Mammalian Evolution 24:2, pages 179-191.
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Florence Coutier, Lionel Hautier, Raphaël Cornette, Eli Amson & Guillaume Billet. (2017) Orientation of the lateral semicircular canal in Xenarthra and its links with head posture and phylogeny. Journal of Morphology 278:5, pages 704-717.
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François Pujos, Gerardo De Iuliis & Cástor Cartelle. (2016) A Paleogeographic Overview of Tropical Fossil Sloths: Towards an Understanding of the Origin of Extant Suspensory Sloths?. Journal of Mammalian Evolution 24:1, pages 19-38.
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Kristi L. Lewton & Heather L. Dingwall. (2016) Morphological convergence in the pubis of slow‐moving primates and xenarthrans. American Journal of Physical Anthropology 161:3, pages 381-397.
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Robert K. McAfee. (2016) Description of New Postcranial Elements of Mylodon darwinii Owen 1839 (Mammalia: Pilosa: Mylodontinae), and Functional Morphology of the Forelimb . Ameghiniana 53:4, pages 418-443.
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Eli Amson, Juan D. Carrillo & Carlos Jaramillo. (2016) Neogene sloth assemblages ( M ammalia, P ilosa) of the C ocinetas B asin ( L a G uajira, C olombia): implications for the G reat A merican B iotic I nterchange . Palaeontology 59:4, pages 563-582.
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Lionel Hautier, Helder Gomes Rodrigues, Guillaume Billet & Robert J. Asher. (2016) The hidden teeth of sloths: evolutionary vestiges and the development of a simplified dentition. Scientific Reports 6:1.
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Eli Amson, Christian de Muizon & Timothy J. Gaudin. (2016) A reappraisal of the phylogeny of the Megatheria (Mammalia: Tardigrada), with an emphasis on the relationships of the Thalassocninae, the marine sloths. Zoological Journal of the Linnean Society.
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Lauren M. Lyon, Chelsea Powell, H. Gregory McDonald & Timothy J. Gaudin. (2015) Premaxillae of the Extinct Megalonychid Sloths Acratocnus, Neocnus, and Megalonyx, and their Phylogenetic Implications (Mammalia, Xenarthra). Journal of Mammalian Evolution 23:2, pages 121-132.
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Timothy J. Gaudin, Gerardo De Iuliis, Nestor Toledo & François Pujos. (2015) The Basicranium and Orbital Region of the Early Miocene Eucholoeops ingens Ameghino, (Xenarthra, Pilosa, Megalonychidae) . Ameghiniana 52:2, pages 226-240.
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