Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae
Abstract We describe a well-preserved South American Lamini partial skeleton (PIMUZ A/V 4165) from the Ensenadan (~ 1.95–1.77 to 0.4 Mya) of Argentina. The specimen is comprised of a nearly complete skull and mandible with full tooth rows, multiple elements of anterior and posterior limbs, and a sca...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-10-01
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| Series: | Swiss Journal of Palaeontology |
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| Online Access: | https://doi.org/10.1186/s13358-020-00208-6 |
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| author | Sinéad Lynch Marcelo R. Sánchez-Villagra Ana Balcarcel |
| author_facet | Sinéad Lynch Marcelo R. Sánchez-Villagra Ana Balcarcel |
| author_sort | Sinéad Lynch |
| collection | DOAJ |
| description | Abstract We describe a well-preserved South American Lamini partial skeleton (PIMUZ A/V 4165) from the Ensenadan (~ 1.95–1.77 to 0.4 Mya) of Argentina. The specimen is comprised of a nearly complete skull and mandible with full tooth rows, multiple elements of anterior and posterior limbs, and a scapula. We tested this specimen’s phylogenetic position and hypothesized it to be more closely related to Lama guanicoe and Vicugna vicugna than to Hemiauchenia paradoxa. We formulate a hypothesis for the placement of PIMUZ A/V 4165 within Camelinae in a cladistic analysis based on craniomandibular and dental characters and propose that future systematic studies consider this specimen as representing a new species. For the first time in a morphological phylogeny, we code terminal taxa at the species level for the following genera: Camelops, Aepycamelus, Pleiolama, Procamelus, and Alforjas. Our results indicate a divergence between Lamini and Camelini predating the Barstovian (16 Mya). Camelops appears as monophyletic within the Camelini. Alforjas taylori falls out as a basal member of Camelinae—neither as a Lamini nor Camelini. Pleiolama is polyphyletic, with Pleiolama vera as a basal Lamini and Pleiolama mckennai in a more nested position within the Lamini. Aepycamelus and Procamelus are respectively polyphyletic and paraphyletic. Together, they are part of a group of North American Lamini from the Miocene epoch. |
| first_indexed | 2024-03-13T01:52:20Z |
| format | Article |
| id | doaj.art-3f7489f245c746328624ec3572d13eff |
| institution | Directory Open Access Journal |
| issn | 1664-2376 1664-2384 |
| language | English |
| last_indexed | 2024-03-13T01:52:20Z |
| publishDate | 2020-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Swiss Journal of Palaeontology |
| spelling | doaj.art-3f7489f245c746328624ec3572d13eff2023-07-02T11:26:03ZengSpringerOpenSwiss Journal of Palaeontology1664-23761664-23842020-10-01139110912510.1186/s13358-020-00208-6Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the CamelinaeSinéad Lynch0Marcelo R. Sánchez-Villagra1Ana Balcarcel2Palaeontological Institute and Museum, University of ZurichPalaeontological Institute and Museum, University of ZurichPalaeontological Institute and Museum, University of ZurichAbstract We describe a well-preserved South American Lamini partial skeleton (PIMUZ A/V 4165) from the Ensenadan (~ 1.95–1.77 to 0.4 Mya) of Argentina. The specimen is comprised of a nearly complete skull and mandible with full tooth rows, multiple elements of anterior and posterior limbs, and a scapula. We tested this specimen’s phylogenetic position and hypothesized it to be more closely related to Lama guanicoe and Vicugna vicugna than to Hemiauchenia paradoxa. We formulate a hypothesis for the placement of PIMUZ A/V 4165 within Camelinae in a cladistic analysis based on craniomandibular and dental characters and propose that future systematic studies consider this specimen as representing a new species. For the first time in a morphological phylogeny, we code terminal taxa at the species level for the following genera: Camelops, Aepycamelus, Pleiolama, Procamelus, and Alforjas. Our results indicate a divergence between Lamini and Camelini predating the Barstovian (16 Mya). Camelops appears as monophyletic within the Camelini. Alforjas taylori falls out as a basal member of Camelinae—neither as a Lamini nor Camelini. Pleiolama is polyphyletic, with Pleiolama vera as a basal Lamini and Pleiolama mckennai in a more nested position within the Lamini. Aepycamelus and Procamelus are respectively polyphyletic and paraphyletic. Together, they are part of a group of North American Lamini from the Miocene epoch.https://doi.org/10.1186/s13358-020-00208-6LaminiCamelinaeSouth AmericaNorth AmericaPhylogeny |
| spellingShingle | Sinéad Lynch Marcelo R. Sánchez-Villagra Ana Balcarcel Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae Swiss Journal of Palaeontology Lamini Camelinae South America North America Phylogeny |
| title | Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae |
| title_full | Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae |
| title_fullStr | Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae |
| title_full_unstemmed | Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae |
| title_short | Description of a fossil camelid from the Pleistocene of Argentina, and a cladistic analysis of the Camelinae |
| title_sort | description of a fossil camelid from the pleistocene of argentina and a cladistic analysis of the camelinae |
| topic | Lamini Camelinae South America North America Phylogeny |
| url | https://doi.org/10.1186/s13358-020-00208-6 |
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