Klamelisaurus

Klamelisaurus is a genus of herbivorous sauropod dinosaur from the Middle Jurassic of China.

Klamelisaurus
Temporal range: Middle Jurassic, 174–163 Ma
Klamelisaurus mount
Skeleton cast
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Sauropoda
Clade: Eusauropoda
Genus: Klamelisaurus
Zhao, 1993
Species
  • K. gobiensis Zhao, 1993

Discovery

Klamelisaurus-scene-v1
Artist impression of Klamelisaurus in a conifer forest

The type species Klamelisaurus gobiensis was named and described by Zhao Xijin in 1993. The generic name refers to Kelamaili, of which "Klameli" is a spelling variant, where remains were found north of Jiangjunmiao in the Junggar Basin of Xinjiang province, in 1982. The specific name refers to the Gobi.[1]

The holotype, IVPP V9492, was found in a layer of the Shishugou Formation dating from the Oxfordian, about 160 million years old. It consists of a partial skeleton lacking the skull. The postcranial skeleton is rather complete, missing only the front part of the neck, the left shoulder girdle, the left forelimb and the feet.[1] The quality of the bones was poor and deteriorated during preparation.

Description

Klamelisaurus was a medium-sized sauropod. In 2010, Gregory S. Paul estimated its length at fifteen metres, its weight at five tonnes, at the same time presuming it represented the adult form of Bellusaurus.[2] In their osteological description of Bellusaurus, Moore et al. (2018) refuted the possible synonymy of Klamelisaurus and Bellusaurus by pointing to the slightly older age of the former and non-ontogenetic differences between the two genera.[3]

Zhao in 1993 established a single explicit autapomorphy: the upper end of the ulna is expanded.[1]

In 1993 Zhao erected a new subfamily, Klamelisaurinae, of which Klamelisaurus was the only member. He assigned Klamelisaurinae to the obscure sauropod clade Bothrosauropodea.[1] It was considered of uncertain classification by Upchurch et al. (2004), possibly being a non-neosauropod eusauropod.[4]

References

  1. ^ a b c d Zhao Xijing (1993). "A new Mid-Jurassic sauropod (Klamelisaurus gobiensis gen. et sp. nov.) from Xinjiang, China" (PDF). Vertebrata PalAsiatica. 31 (2): 132–138.
  2. ^ Paul, G.S., 2010, The Princeton Field Guide to Dinosaurs, Princeton University Press p. 178
  3. ^ Moore AJ, Mo J, Clark JM, Xu X. (2018) Cranial anatomy of Bellusaurus sui (Dinosauria: Eusauropoda) from the Middle-Late Jurassic Shishugou Formation of northwest China and a review of sauropod cranial ontogeny. PeerJ 6:e4881 https://doi.org/10.7717/peerj.4881
  4. ^ P. Upchurch, P. M. Barrett, and P. Dodson. 2004. Sauropoda. In D. B. Weishampel, H. Osmolska, and P. Dodson (eds.), The Dinosauria (2nd edition). University of California Press, Berkeley 259-322
Brasilotitan

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Cetiosauridae

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Daxiatitan

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Diplodocinae

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Eusauropoda

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Ferganasaurus

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Flagellicaudata

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Gravisauria

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Huangshanlong

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Jiutaisaurus

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Kaijutitan

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Microcoelus

Microcoelus is a dubius genus of small Titanosaurian sauropod dinosaur native to Argentina. It is known from only a single dorsal vertebra. A left humerus was formerly referred to this species, but it is now considered to belong to Neuquensaurus. This species may be a synonym of the contemporary sauropod Neuquensaurus australis.It was described by British paleontologist Richard Lydekker in 1893.

Oceanotitan

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Pilmatueia

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Shishugou Formation

The Shishugou Formation (simplified Chinese: 石树沟组; traditional Chinese: 石樹溝組; pinyin: Shíshùgōu Zǔ) is a geological formation in Xinjiang, China.

Its strata date back to the Late Jurassic period. Dinosaur remains are among the fossils that have been recovered from the formation (see Junggar Basin dinosaur trap). The Shishugou Formation is considered one of the most phylogenetically and trophically diverse Middle to Late Jurassic theropod fauna.The Wucaiwan Formation, once considered a separate, underlying formation, is now considered the lowest unit of the Shishugou Formation.

Tambatitanis

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Tastavinsaurus

Tastavinsaurus is a genus of sauropod dinosaur belonging to the Titanosauriformes. It is based on a partial skeleton from the Early Cretaceous of Spain. The type species is Tastavinsaurus sanzi, named in honor of the Rio Tastavins in Spain and Spanish paleontologist José Luis Sanz.

Tengrisaurus

Tengrisaurus (meaning "Tengri lizard") is a genus of lithostrotian sauropod, from the Early Cretaceous (Barremian-Aptian), of the Murtoi Formation, Russia. It was described in 2017 by Averianov & Skutschas. The type species is T. starkovi.

Vulcanodontidae

The Early Jurassic sauropod dinosaurs Zizhongosaurus, Barapasaurus, Tazoudasaurus, and Vulcanodon may form a natural group of basal sauropods called the Vulcanodontidae. Basal vulcanodonts include some of the earliest known examples of sauropods. The family-level name Vulcanodontidae was erected by M.R. Cooper in 1984. In 1995 Hunt et al. published the opinion that the family is synonymous with the Barapasauridae. One of the key morphological features specific to the family is an unusually narrow sacrum.

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