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A New Species of Small-Bodied Sparassodont (Mammalia, Metatheria) from the Middle Miocene Locality of Quebrada Honda, Bolivia
The Sparassodonta (Mammalia, Metatheria) are a group of carnivorous mammals that dominated the macropredatory guild of South America during the Cenozoic. Here, we describe a new sparassodont based on a single specimen from the middle Miocene Quebrada Honda local fauna of southern Bolivia. This speci...
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Published in: | Journal of vertebrate paleontology 2014-05, Vol.34 (3), p.672-688 |
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description | The Sparassodonta (Mammalia, Metatheria) are a group of carnivorous mammals that dominated the macropredatory guild of South America during the Cenozoic. Here, we describe a new sparassodont based on a single specimen from the middle Miocene Quebrada Honda local fauna of southern Bolivia. This specimen (UF 27881) does not clearly correspond to any major sparassodont group (e.g., Hathliacynidae, Borhyaenidae, etc.) and represents a morphotype previously unknown among the Sparassodonta. UF 27881 is distinguished from other sparassodonts by its short, broad, borhyaenid-like rostrum and small size, among other features. However, we decline to coin a new name for UF 27881 due to the fragmentary nature of this specimen and the absence of most of its dentition. This specimen suggests that the appearance of the Sparassocynidae and several hypercarnivorous didelphid taxa (including Thylophorops, Thylatheridium, Lutreolina, and Hyperdidelphys) represent an evolutionary response to the decline in small, predatory sparassodont taxa during the late Cenozoic. This study documents new morphological diversity among the Sparassodonta and highlights the value of fossils from traditionally undersampled parts of South America. |
doi_str_mv | 10.1080/02724634.2013.827118 |
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This study documents new morphological diversity among the Sparassodonta and highlights the value of fossils from traditionally undersampled parts of South America.</description><subject>Canines</subject><subject>Fauna</subject><subject>Fossils</subject><subject>Mammalia</subject><subject>Mammals</subject><subject>Marsupials</subject><subject>Metatheria</subject><subject>Palate</subject><subject>Skull</subject><subject>Taxa</subject><subject>Teeth</subject><subject>Vertebrate paleontology</subject><issn>0272-4634</issn><issn>1937-2809</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqNkE9v1DAQxS1EJZaWbwCSj0UiW__L2jmhtqIUabcIFc7WJLaFKyez2FmqPfDdmyjAFU6jmfd7z9Yj5DVna84Mu2BCC7WRai0Yl2sjNOfmGVnxRupKGNY8J6sZqWbmBXlZygNjzGy4WpFfl_TOP9L7ve-iLxQDve8hpeoKXfRuukOGUtDhMNLzHfSTGOEd3fkRxu8-R3hLQ8aeTgvdRefSPLDzg6db7CZ4PM6hXw6-zeCA3uLgJv8Vpvgzwhk5CZCKf_V7npJvNx--Xt9W288fP11fbitQWo2V1qY2jinXGmFC3TUe1KZhtRPBiFp3jXGmYc4EHaQHx6VQrqmDgVqpthVMnpLzJXef8cfBl9H2sXQ-JRg8HorltWJCMq3FhKoF7TKWkn2w-xx7yEfLmZ3btn_atnPbdml7sr1ZbA9lxPzXI1QtpDCbSX-_6HEImHt4xJycHeGYMIcMQxeLlf94QSwJbUQc_P996wkByJ1c</recordid><startdate>20140501</startdate><enddate>20140501</enddate><creator>Engelman, Russell K</creator><creator>Croft, Darin A</creator><general>Society of Vertebrate Paleontology</general><general>Taylor & Francis</general><general>Taylor & Francis Group</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SN</scope><scope>C1K</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>20140501</creationdate><title>A New Species of Small-Bodied Sparassodont (Mammalia, Metatheria) from the Middle Miocene Locality of Quebrada Honda, Bolivia</title><author>Engelman, Russell K ; Croft, Darin A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a474t-77858d04db828f5c9ea46905d2f8257c98d890d8f7f3ead1324d95f8a544bb203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Canines</topic><topic>Fauna</topic><topic>Fossils</topic><topic>Mammalia</topic><topic>Mammals</topic><topic>Marsupials</topic><topic>Metatheria</topic><topic>Palate</topic><topic>Skull</topic><topic>Taxa</topic><topic>Teeth</topic><topic>Vertebrate paleontology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Engelman, Russell K</creatorcontrib><creatorcontrib>Croft, Darin A</creatorcontrib><collection>CrossRef</collection><collection>Ecology Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Journal of vertebrate paleontology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Engelman, Russell K</au><au>Croft, Darin A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A New Species of Small-Bodied Sparassodont (Mammalia, Metatheria) from the Middle Miocene Locality of Quebrada Honda, Bolivia</atitle><jtitle>Journal of vertebrate paleontology</jtitle><date>2014-05-01</date><risdate>2014</risdate><volume>34</volume><issue>3</issue><spage>672</spage><epage>688</epage><pages>672-688</pages><issn>0272-4634</issn><eissn>1937-2809</eissn><notes>ObjectType-Article-1</notes><notes>SourceType-Scholarly Journals-1</notes><notes>ObjectType-Feature-2</notes><notes>content type line 23</notes><abstract>The Sparassodonta (Mammalia, Metatheria) are a group of carnivorous mammals that dominated the macropredatory guild of South America during the Cenozoic. 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source | JSTOR Archival Journals and Primary Sources Collection; Taylor and Francis Science and Technology Collection |
subjects | Canines Fauna Fossils Mammalia Mammals Marsupials Metatheria Palate Skull Taxa Teeth Vertebrate paleontology |
title | A New Species of Small-Bodied Sparassodont (Mammalia, Metatheria) from the Middle Miocene Locality of Quebrada Honda, Bolivia |
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