Ninjatitan

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Ninjatitan
Temporal range: Early Cretaceous,
140–134 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: †Sauropodomorpha
Clade: †Sauropoda
Clade: †Macronaria
Clade: †Titanosauria
Genus: †Ninjatitan
Gallina, Canale, & Carballido, 2021
Species:
†N. zapatai
Binomial name
†Ninjatitan zapatai
Gallina, Canale, & Carballido, 2021

Ninjatitan (meaning "Ninja giant") is a genus of titanosaur sauropod dinosaur from the Early Cretaceous (Berriasian-Valanginian)-aged Bajada Colorada Formation of Argentina. It is the oldest titanosaur known to date and the type species N. zapatai was named and described in 2021.[1] Its generic name comes from a nickname of Argentine palaeontologist Sebastian Apesteguia, and the specific name comes from technician Rogelio Zapata.[2] It is known from postcranial remains discovered in 2014.[3][4]

Classification[]

In a 2021 study regarding the classification of Dzharatitanis (originally identified as a rebbachisaurid, but subsequently found to be a titanosaur), the following phylogeny was proposed (possible positions of Ninjatitan are indicated in bold text):[5]

Titanosauria
 

Andesaurus

 
 
 

Ninjatitan

 
 
 

Epachthosaurus

 
 
Colossosauria
Rinconsauria
 

Rinconsaurus

 
 
 

Muyelensaurus

 
 
 

Aeolosaurus

 
 

Overosaurus

 
 
 
 
 
 

Bonitasaura

 
 
 

Notocolossus

 
Lognkosauria
 

Mendozasaurus

 
 
 

Dzharatitanis

 
 
 
 

Ninjatitan?

 
 
 

Futalognkosaurus

 
 

Quetecsaurus

 
 
 
 
 

Ninjatitan?

 
 
 

Drusilasaura

 
 

Puertasaurus

 
 
 

Ninjatitan?

 
 
 

Argentinosaurus

 
 

Patagotitan

 
 
 
 
 
 
 
 
 
 
 
 
 

Dreadnoughtus

 
Lithostrotia
 

Malawisaurus

 
 
 
 

Baurutitan

 
 

Dzharatitanis?

 
 
 
 

Alamosaurus

 
 

Nemegtosaurus

 
 

Neuquensaurus

 
 

Opisthocoelicaudia

 
 

Saltasaurus

 
 

Trigonosaurus

 
 
 

Rapetosaurus

 
 
 

Isisaurus

 
 

Tapuiasaurus

 
 
 
 
 
 
 
 
 
 
 

References[]

  1. ^ Gallina, P. A.; Canale, J. I.; Carballido, J. L. (2021). "The Earliest Known Titanosaur Sauropod Dinosaur". Ameghiniana. 58 (1): 35–51. doi:10.5710/AMGH.20.08.2020.3376.
  2. ^ France-Presse, Agence (March 1, 2021). "Colossal titanosaur found in Argentina could be the oldest example ever found, say scientists". South China Morning Post.{{cite news}}: CS1 maint: url-status (link)
  3. ^ "Científicos argentinos hallaron el titanosaurio más antiguo a nivel mundial". www.ambito.com. Retrieved 2021-03-01.
  4. ^ Monday, 01 Mar 2021 07:32 AM MYT. "Study: Argentine titanosaur may be oldest yet | Malay Mail". www.malaymail.com. Retrieved 2021-03-01.
  5. ^ Lerzo, Lucas Nicolás; Carballido, José Luis; Gallina, Pablo Ariel (2021-04-30). "REBBACHISAURID SAUROPODS IN ASIA? A RE-EVALUATION OF THE PHYLOGENETIC POSITION OF DZHARATITANIS KINGI FROM THE LATE CRETACEOUS OF UZBEKISTAN". Publicación Electrónica de la Asociación Paleontológica Argentina. 21 (1): 18–27. doi:10.5710//PEAPA.24.03.2021.389. ISSN 2469-0228.


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