Biology:Cramauchenia

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Short description: Extinct genus of litoptern South American ungulate

Cramauchenia
Temporal range: Late Oligocene-Early Miocene (Deseadan-Colhuehuapian)
~29.0–17.5 Ma
Cramauchenia insolita.jpg
Skull of Cramauchenia normalis in the Field Museum of Natural History
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: †Litopterna
Family: †Macraucheniidae
Subfamily: †Cramaucheniinae
Genus: †Cramauchenia
Ameghino, 1902
Species:
†C. normalis
Binomial name
†Cramauchenia normalis
Ameghino, 1902
Synonyms
  • C. insolita

Cramauchenia is an extinct genus of litoptern South American ungulate. Cramauchenia was named by Florentino Ameghino.[1] The name has no literal translation. Instead, it is an anagram of the name of a related genus Macrauchenia. This genus was initially discovered in the Sarmiento Formation in the Chubut Province, in Argentina , and later it was found in the Chichinales Formation in the Río Negro Province and the Cerro Bandera Formation in Neuquén, also in Argentina, in sediments assigned to the SALMA Colhuehuapian (in the Early Miocene), as well as the Agua de la Piedra Formation in Mendoza, in sediments dated to the Deseadan (during the Late Oligocene).[2][3][4][5] In 1981 Soria made C. insolita a junior synonym of C. normalis.[6] A specimen of C. normalis was described in 2010 from Cabeza Blanca (Chubut, Argentina) in the Sarmiento Formation, in sediments assigned to the Deseadan SALMA (Upper Oligocene).[7]

Description

This animal had an appearance vaguely similar to that of a small llama or perhaps that of a stocky antelope. The skull of this animal was relatively elongated and provided with a slightly recessed nasal opening, which would indicate the presence of a strong, muscular lip, likely prehensile. In similar but larger and more recent forms, such as Theosodon and Scalabrinitherium, this lip gradually developed, eventually giving rise to a possibly proboscis-like structure with Macrauchenia.[7]

Taxonomy

Cramauchenia was first described by Florentino Ameghino in 1902, based on fossils found in the Sarmiento Formation of Argentina. It is a primitive representative of the Macraucheniidae, a group of South American mammals belonging to the Litopterna, with forms similar to those of camelids, despite not being closely related.[7] Cramauchenia is known for the sole species C. normalis. Another species, C. insolita, was initially described as a separate species, but following a study by Soria 1981 it has since been attributed to the type species.[6] Furthermore, Cramauchenia has been assigned to the Cramaucheniinae, a subfamily including the most basal macraucheniids, however, many recent studies tend to indicate that the subfamily is paraphyletic, with Cramauchenia being most closely related to Pternoconius.[8][9]

The following position of the Macraucheniidae is based on McGrath et al. 2018, showing the position of Cramauchenia.[8]

 
 

Proadiantus excavatus

 
 
 

Tricoelodus spp.

 
Macraucheniidae 
 

Polymorphis lechei

 
 
 
 

Pternoconius spp.

 
 

Cramauchenia normalis

 
 
 
 

Coniopternium

 
 

Llullataruca shockeyi

 
 
 
 
 

Theosodon spp.

 
 

Theosodon arozquetai

 
 
Macraucheniinae 
 

Scalabrinitherium bravardi

 
 
 
 

Huayqueriana cristata

 
 

Huayqueriana cf. cristata

 
 
 
 
 

Oxyodontherium zeballosi

 
 
 

Paranauchenia hystata

 
 

Paranauchenia denticulata

 
 
 
 
 

Cullinia levis

 
 
 
 

Promacrauchenia calchaquiorum

 
 

Promacrauchenia antiqua

 
 
 
 
 

Windhausenia delacroixi

 
 

Xenorhinotherium bahiense

 
 
 
 

Macraucheniopsis ensenadensis

 
 

Macrauchenia patachonica

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Paleoenvironment

Fossils of Cramauchenia have been found in various fossiliferous stratigraphic units in South America. Several specimens come from the Sarmiento Formation in the Golfo San Jorge Basin in central Patagonia, with other finds from the Agua de la Piedra, Cerro Bandera, and the Chichinales Formation of the Neuquén Basin.

In the Chichinales Formation, which is known for its local mammal fauna, Cramauchenia would have coexisted with astrapotheres, the notoungulates Cochilius volvens, Colpodon, Hegetotheriopsis, Hegetotherium[10] and Protypotherium, the rodents Australoprocta, Caviocricetus, Eoviscaccia, and Willidewu,[11] the armadillos Proeutatus and Stenotatus, and the sparassodont Cladosictis. Bird remains from the formation are comparatively poor. A part of a tibiotarsus has previously been classified as an undetermined species of psilopterine phorusrhacid. Other birds include an undetermined wading bird, Opisthodactylus horacioperezi, a species of rhea, and Patagorhacos, a phorusrhacid. During the Miocene the area likely consisted of open but wooded environment with temperate climate and a proximity to freshwater.[2]

The Sarmiento Formation has provided a wide assemblage of mammals, including the astrapotheres Astrapotherium and Parastrapotherium,[12] the notoungulates Argyrohippus,[13] Cochilius, Colpodon,[14] Interatherium, Pachyrukhos and Protypotherium,[15] the fellow litopterns Lambdaconus, Paramacrauchenia, Proheptaconus,[16] Prolicaphrium,[17] Pternoconius,[18][19][20] Tetramerorhinus[15] and Theosodon,[21] the xenarthrans Hapaloides, Holomegalonyx, Nematherium, Peltephilus, Proeutatus, Proschismotherium, Prozaedyus, Stegotherium, and Stenotatus,[22] the metatherians Acyon, Acrocyon, Arctodictis, Borhyaena, Cladosictis Palaeothentes, Patagonia, and Sipalocyon,[23] the rodents Acarechimys, Acaremys, Caviocricetus, Eosteiromys, Eoviscaccia, Hypsosteiromys, Neoreomys, Paradelphomys, Parasteiromys, Perimys, Prospaniomys, Prostichomys, Protacaremys, Protadelphomys, Sarremys and Soriamys,[11][24][25][26][27][28][29][30][31][32][33] and the primates Homunculus, Mazzonicebus and Tremacebus.[34][35][36] The late-surviving meridiolestidan Necrolestes was also present.[23]

References

  1. ↑ Ameghino, Florentino (1902). "Première contribution a la connaissance de la faune mammalogique des couches a Colpodon". Boletin de la Academia Nacional de Ciencias en Córdoba, República Argentina 17: 71–141. ISSN 0325-2051. https://www.biodiversitylibrary.org/part/198536. 
  2. ↑ 2.0 2.1 Barrio, Claudio; Carlini, Alfredo A.; Goin, Francisco J. (1989). "Litogénesis y antigüedad de la Formación Chichinales de Paso Córdoba (Río Negro, Argentina)". Actas, IV Congreso Argentino de Paleontología y Bioestratigrafía, Mendoza 4: 149–156. https://www.researchgate.net/publication/284902990. 
  3. ↑ Federico L. Agnolin and Pablo Chafrat (2015). "New fossil bird remains from the Chichinales Formation (Early Miocene) of northern Patagonia, Argentina". Annales de Paléontologie 101 (2): 87–94. doi:10.1016/j.annpal.2015.02.001. Bibcode: 2015AnPal.101...87A. https://www.researchgate.net/publication/273206896. 
  4. ↑ Kramarz, Alejandro; Garrido, Alberto; Forasiepi, Analía; Bond, Mariano; Tambussi, Claudia (2005). "Stratigraphy and vertebrates (Aves and Mammalia) from the Cerro Bandera Formation, Early Miocene of Neuquén Province, Argentina.". Revista Geológica de Chile 32 (2). doi:10.4067/S0716-02082005000200006. http://www.andeangeology.cl/index.php/revista1/article/view/V32n2-a06/html. 
  5. ↑ Schmidt, Gabriela Ines; Cerdeño, Esperanza; Pino, Santiago Hernández Del (2019-05-31). "Macraucheniidae and Proterotheriidae (Mammalia, Litopterna) from Quebrada Fiera (Late Oligocene), Mendoza Province, Argentina" (in en). Andean Geology 46 (2): 368–382. doi:10.5027/andgeoV46n2-3109. ISSN 0718-7106. http://www.andeangeology.cl/index.php/revista1/article/view/V46n2-3109. 
  6. ↑ 6.0 6.1 Soria, Miguel Fernando (1981). "Los Litopterna del Colhuehuapense (Oligoceno tardío) de la Argentina.". Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia." (3): 1–54. 
  7. ↑ 7.0 7.1 7.2 Dozo, M.T.; Vera, B. (2010). "First skull and associated postcranial bones of Macraucheniidae (Mammalia, Litopterna) from the Deseadan SALMA (late Oligocene) of Cabeza Blanca (Chubut, Argentina)". Journal of Vertebrate Paleontology 30 (6): 1818–1826. doi:10.1080/02724634.2010.521534. Bibcode: 2010JVPal..30.1818D. https://www.researchgate.net/publication/233015768. 
  8. ↑ 8.0 8.1 Andrew J. McGrath; Federico Anaya; Darin A. Croft (2018). "Two new macraucheniids (Mammalia: Litopterna) from the late middle Miocene (Laventan South American Land Mammal Age) of Quebrada Honda, Bolivia". Journal of Vertebrate Paleontology 38 (3): e1461632. doi:10.1080/02724634.2018.1461632. Bibcode: 2018JVPal..38E1632M. https://www.tandfonline.com/doi/abs/10.1080/02724634.2018.1461632?journalCode=ujvp20. 
  9. ↑ Schmidt, Gabriela I.; Ferrero, Brenda S. (September 2014). "Taxonomic Reinterpretation of Theosodon hystatus Cabrera and Kraglievich, 1931 (Litopterna, Macraucheniidae) and Phylogenetic Relationships of the Family". Journal of Vertebrate Paleontology 34 (5): 1231–1238. doi:10.1080/02724634.2014.837393. Bibcode: 2014JVPal..34.1231S. https://www.tandfonline.com/doi/abs/10.1080/02724634.2014.837393. 
  10. ↑ Kramarz, Alejandro Gustavo; Paz, Ernesto Rodrigo (2013). "Un Hegetotheriidae (Mammalia, Notoungulata) basal del Mioceno temprano de Patagonia" (in es). Revista Mexicana de Ciencias Geológicas 30 (1): 186–195. ISSN 1026-8774. http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1026-87742013000100013&lng=es&nrm=iso&tlng=es. 
  11. ↑ 11.0 11.1 Madden, Richard H.; Carlini, Alfredo A.; Vucetich, Maria Guiomar; Kay, Richard F. (2010-06-17). "Colhuehuapian rodents from Gran Barranca and other Patagonian localities: the state of the art." (in en). The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. ISBN 978-0-521-87241-6. https://books.google.com/books?id=oY7wkK6lV4cC&q=Colhuehuapian+rodents+from+Gran+Barranca+and+other+Patagonian+localities%3A+the+state+of+the+art.&pg=PA206. 
  12. ↑ Madden, Richard H.; Carlini, Alfredo A.; Vucetich, Maria Guiomar; Kay, Richard F. (2010-06-17). "Colhuehuapian Astrapotheriidae (Mammalia) from Gran Barranca south of Lake Colhue Huapi." (in en). The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. ISBN 978-0-521-87241-6. https://books.google.com/books?id=oY7wkK6lV4cC&dq=Colhuehuapian+Astrapotheriidae+%28Mammalia%29+from+Gran+Barranca+south+of+Lake+Colhue+Huapi.&pg=PA182. 
  13. ↑ G.M López; A.M. Ribeiro; M. Bond (2010). "The Notohippidae (Mammalia, Notoungulata) from Gran Barranca: preliminary considerations". in Richard H. Madden. The Paleontology of Gran Barranca. Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. pp. 143–151. ISBN 978-0-521-87241-6. https://books.google.com/books?id=oY7wkK6lV4cC&pg=PA143. 
  14. ↑ Madden, Richard H.; Carlini, Alfredo A.; Vucetich, Maria Guiomar; Kay, Richard F. (2010-06-17). "The Leontiniidae (Mammalia, Notoungulata) from the Sarmiento Formation at Gran Barranca, Chubut Province, Argentina." (in en). The Paleontology of Gran Barranca: Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. ISBN 978-0-521-87241-6. https://books.google.com/books?id=oY7wkK6lV4cC&dq=The+Leontiniidae+%28Mammalia%2C+Notoungulata%29+from+the+Sarmiento+Formation+at+Gran+Barranca%2C+Chubut+Province%2C+Argentina.&pg=PR5. 
  15. ↑ 15.0 15.1 A. G. Kramarz; M. G. Vucetich; A. A. Carlini; M. R. Ciancio; M. A. Abello; C. M. Deschamps; J. N. Gelfo (2010). "A new mammal fauna at the top of the Gran Barranca sequence and its biochronological significance.". in Richard H. Madden. The Paleontology of Gran Barranca. Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. pp. 143–151. ISBN 978-0-521-87241-6. https://www.researchgate.net/publication/233955394. 
  16. ↑ Cifelli, Richard; Soria, Miguel Fernando (1983). "Systematics of the Adianthidae (Litopterna, Mammalia)." (in en-US). American Museum Novitates (2771): 1–25. https://digitallibrary.amnh.org/handle/2246/5255. 
  17. ↑ Vera, Bárbara Soledad; Fornasiero, Mariagabriella; Del Favero, Letizia (December 2015). "The Egidio Feruglio's collection in the Museum of Geology and Palaeontology of the University of Padova: its importance to the knowledge of Cenozoic mammals from South America". Museologia Scientifica 9: 35–44. ISSN 1123-265X. https://www.researchgate.net/publication/290430697. 
  18. ↑ Cifelli, Richard L.; Soria, Miguel F. (1983). "Notes on Deseadan Macraucheniidae" (in es). Ameghiniana 20 (1–2): 141–153. ISSN 1851-8044. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/1799. 
  19. ↑ Soria (h), Miguel Fernando; Hoffstetter, Robert (1985). "Pternoconius tournoueri, nueva especie de Macraucheniidae (Mammalia; Litopterna) de edad Colhuehuapense (Oligoceno Tardio); Pcia. Del Chubut, República Argentina" (in es). Ameghiniana 22 (3–4): 149–158. ISSN 1851-8044. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/1758. 
  20. ↑ Cheme-Arriaga, Lucas; Dozo, MarÍa Teresa; Gelfo, Javier N. (2016-11-01). "A new Cramaucheniinae (Litopterna, Macraucheniidae) from the early Miocene of Patagonia, Argentina". Journal of Vertebrate Paleontology 36 (6): e1229672. doi:10.1080/02724634.2017.1229672. ISSN 0272-4634. Bibcode: 2016JVPal..36E9672C. https://doi.org/10.1080/02724634.2017.1229672. 
  21. ↑ Kramarz, Alejandro G.; Bond, Mariano (2005). "Los Litopterna (Mammalia) de la Formación Pinturas, Mioceno Temprano-Medio de Patagonia" (in es). Ameghiniana 42 (3): 611–625. ISSN 1851-8044. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/928. 
  22. ↑ Carlini, Alfredo Armando; Ciancio, Martin R.; Scillato-Yané, G. J. (2010). "Middle Eocene-early Miocene Dasypodidae (Xenarthra) of Southern South America, successive faunas in Gran Barranca; Biostratigraphy and Palaeoecology". The Paleontology of Gran Barranca. Evolution and Environmental Change Through the Middle Cenozoic of Patagonia. Cambridge University Press. pp. 143–151. ISBN 978-0-521-87241-6. https://www.researchgate.net/publication/233955405. 
  23. ↑ 23.0 23.1 Goin, Francisco J.; Abello, María Alejandra (February 2013). "Los Metatheria Sudamericanos de Comienzos Del Neógeno (Mioceno Temprano, Edad MamÍFero Colhuehuapense): Microbiotheria y Polydolopimorphia". Ameghiniana 50 (1): 51–78. doi:10.5710/AMGH.9.11.2012.570. ISSN 0002-7014. 
  24. ↑ Vucetich, M.G.; Dozo, M.T.; Arnal, M.; Pérez, M.E. (2015-02-17). "New rodents (Mammalia) from the late Oligocene of Cabeza Blanca (Chubut) and the first rodent radiation in Patagonia". Historical Biology 27 (2): 236–257. doi:10.1080/08912963.2014.883506. ISSN 0891-2963. Bibcode: 2015HBio...27..236V. https://doi.org/10.1080/08912963.2014.883506. 
  25. ↑ Arnal, M.; Vucetich, M.G. (2015-01-02). "Revision of the fossil rodent Acaremys Ameghino, 1887 (Hystricognathi, Octodontoidea, Acaremyidae) from the Miocene of Patagonia (Argentina) and the description of a new acaremyid". Historical Biology 27 (1): 42–59. doi:10.1080/08912963.2013.863881. ISSN 0891-2963. Bibcode: 2015HBio...27...42A. 
  26. ↑ Vucetich, María Guiomar; Kramarz, Alejandro G. (2003-06-17). [0435:NMRFPA2.0.CO;2 "New Miocene rodents from Patagonia (Argentina) and their bearing on the early radiation of the octodontoids (Hystricognathi)"]. Journal of Vertebrate Paleontology 23 (2): 435–444. doi:10.1671/0272-4634(2003)023[0435:NMRFPA2.0.CO;2]. ISSN 0272-4634. https://doi.org/10.1671/0272-4634(2003)023[0435:NMRFPA]2.0.CO;2. 
  27. ↑ Vucetich, M. G.; Verzi, D. H. (1996-06-05). "A peculiar octodontoid (Rodentia, Caviomorpha) with terraced molars from the Lower Miocene of Patagonia (Argentina)". Journal of Vertebrate Paleontology 16 (2): 297–302. doi:10.1080/02724634.1996.10011317. ISSN 0272-4634. Bibcode: 1996JVPal..16..297V. https://doi.org/10.1080/02724634.1996.10011317. 
  28. ↑ Kramarz, Alejandro Gustavo (2001). "Registro de Eoviscaccia (Rodentia, Chinchillidae) en estratos colhuehuapenses de Patagonia, Argentina" (in es). Ameghiniana 38 (3): 237–242. ISSN 1851-8044. https://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2608. 
  29. ↑ Dozo, María T.; Vucetich, María G.; Candela, Adriana M. (2004-03-25). "Skull anatomy and neuromorphology of Hypsosteiromys, a Colhuehuapian erethizontid rodent from Argentina". Journal of Vertebrate Paleontology 24 (1): 228–234. doi:10.1671/18.1. ISSN 0272-4634. Bibcode: 2004JVPal..24..228D. https://doi.org/10.1671/18.1. 
  30. ↑ Patterson, B.; Pascual, R. (1968). "New echimyid rodents from the Oligocene of Patagonia, and a synopsis of the family". Breviora 301: 1–14. ISSN 0006-9698. https://www.biodiversitylibrary.org/part/31522. 
  31. ↑ Arnal, Michelle; Kramarz, Alejandro G. (2011-09-01). "First complete skull of an octodontoid (Rodentia, Caviomorpha) from the Early Miocene of South America and its bearing in the early evolution of Octodontoidea" (in en). Geobios 44 (5): 435–444. doi:10.1016/j.geobios.2010.12.003. ISSN 0016-6995. Bibcode: 2011Geobi..44..435A. https://www.sciencedirect.com/science/article/pii/S0016699511000532. 
  32. ↑ Álvarez, Alicia; Arnal, Michelle (2015-12-01). "First Approach to the Paleobiology of Extinct Prospaniomys (Rodentia, Hystricognathi, Octodontoidea) Through Head Muscle Reconstruction and the Study of Craniomandibular Shape Variation" (in en). Journal of Mammalian Evolution 22 (4): 519–533. doi:10.1007/s10914-015-9291-z. ISSN 1573-7055. https://doi.org/10.1007/s10914-015-9291-z. 
  33. ↑ Busker, Felipe; Pérez, María E.; Dozo, María T. (2019-07-01). "A new chinchilloid (Rodentia, Hystricognathi) from the early Miocene of the localities of Bryn Gwyn and Gran Barranca (Patagonia, Argentina)" (in en). Comptes Rendus Palevol 18 (5): 525–540. doi:10.1016/j.crpv.2019.05.003. ISSN 1631-0683. Bibcode: 2019CRPal..18..525B. 
  34. ↑ Hershkovitz, Philip (1981-01-31). "Comparative Anatomy of Platyrrhine Mandibular Cheek Teeth dpm4, pm4, m1 with Particular Reference to Those of Homunculus (Cebidae), and Comments on Platyrrhine Origins". Folia Primatologica 35 (2–3): 179–217. doi:10.1159/000155972. ISSN 0015-5713. PMID 7021372. https://brill.com/view/journals/ijfp/35/2-3/article-p179_5.xml. 
  35. ↑ Novo, Nelson M.; Tejedor, Marcelo F.; Ruiz, Laureano R. González (2018-11-08). "Previously unknown fossil platyrrhines (Primates) of Patagonia from the Tournouër collection at the Muséum national d'Histoire naturelle, Paris". Geodiversitas 40 (4): 529–535. doi:10.5252/geodiversitas2018v40a22. ISSN 1280-9659. 
  36. ↑ Hershkovitz, Philip (1974). "A New Genus of Late Oligocene Monkey (Cebidae, Platyrrhini) with Notes on Postorbital Closure and Platyrrhine Evolution" (in english). Folia Primatologica 21 (1): 1–35. doi:10.1159/000155594. ISSN 0015-5713. PMID 4210697. https://www.karger.com/Article/FullText/155594. 

External links

Wikidata ☰ Q3753628 entry



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