Dinopedia
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Talenkauen is a Late Cretaceous[2] genus of Elasmarian[2] from South America, and contains one species Talenkauen santacrucensis.

Description[]

1200px-Talenkauen Scale

Size Comparison of Talenkauen santacrucensis

In 2004 Fernando Novas, Andrea Cambasio, and Alfredo Ambrosio proposed a new genus and species Talenkauen santacrucensis based off "distinguishing features in the holotype specimen(MPM–10001) in the presence of plate-like structures on both sides of the thorax, which are better interpreted as uncinate processes than dermal armor."[3] The holotype was estimated to have been around 4 meters long(13 feet), which the publishers considered as being the first large non-hadrosaurian euornithopod bones described from South America.[3]

220px-Talenkauen
220px-Talenkauen fossil
MPM–10001

Etymology[]

Talenkauen

The generic name Talenkauen means "small skull", derived from the Aonikek words Talenk and Kauen. The specific name santacrucensis is derived from Santa Cruz, the name of the province in Argentina from which it was found.[3]

Classification[]

Talenkauen was originally placed as an Euiguanodontian in its description paper, being more derived than Gasparinisaura, but more basal to Dryomorpha than Anabisetia.[3] In a Septemember 2012 publication, Talenkauen was placed in a clade with Anabisetia, forming a sister taxon to Iguanodontia.[4]



OrodromeusOrodromeus by Tomopteryx





Haya griva




Jeholosaurus



Changchunsaurus






Hypsilophodon




GideonmantelliaGideonmantellia flipped transparent



Thescelosaurus




Parksosaurus



Gasparinisaura





Talenkauen



Anabisetia



Iguanodontia







A 2013 study classified Talenkauen as an "Euiguanodontid" without comment.[5] In 2019 Talenkauen santacrucensis is placed within Elasmaria, due to similarities of features in the cervical vertebra which are shared with other members of the clade.[2]




"Fulgurotherium"



Trinisaura



Gasparinisaura



Qantassaurus



Notohypsilophodon



Morrosaurus



Kangnasaurus



Anabisetia



Atlascopcosaurus



Macrogryphosaurus



Talenkauen





Valdosaurus



Callovosaurus



Elrhazosaurus



Muttaburrasaurus



Rhabdodon




Dryosaurus



Dysalotosaurus



Tenontosaurus

T. dossi



T. tilletti



Zalmoxes

Z. shqiperorum



Z. robustus





Camptosaurus



Hadrosauriformes





References[]

  1. https://www.sciencedirect.com/science/article/abs/pii/S0195667119303659
  2. 2.0 2.1 2.2 2.3 https://www.researchgate.net/publication/332843404_Osteology_of_the_Patagonian_ornithopod_Talenkauen_santacrucensis_Dinosauria_Ornithischia
  3. 3.0 3.1 3.2 3.3 https://www.researchgate.net/publication/259975050_A_new_basal_iguanodontian_Dinosauria_Ornithischia_from_the_Upper_Cretaceous_of_Patagonia
  4. https://www.sciencedirect.com/science/article/pii/S1631068312000784
  5. https://www.sciencedirect.com/science/article/abs/pii/S1342937X12002870
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