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.[1]

Tastavinsaurus
Temporal range: Early Cretaceous
Tastavinsaurus - El Castellar, Teruel, Spain - Left femur, tibia & fibula
Left hindlimb of the referred specimen CT-19
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Sauropoda
Clade: Camarasauromorpha
Branch: Laurasiformes
Genus: Tastavinsaurus
Canudo et al., 2008
Species:
T. sanzi
Binomial name
Tastavinsaurus sanzi
Canudo et al., 2008
Tastavinsaurus BW
Restoration

References

  1. ^ Canudo, José I.; Royo-Torres, Rafael; Cuenca-Bescós, Gloria (2008). "A new sauropod: Tastavinsaurus sanzi gen. et sp. nov. from the Early Cretaceous (Aptian) of Spain". Journal of Vertebrate Paleontology. 28 (3): 712–731. doi:10.1671/0272-4634(2008)28[712:ANSTSG]2.0.CO;2.
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Daxiatitan

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Ferganasaurus

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Flagellicaudata

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Gravisauria

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Kaijutitan

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Laurasiformes

Laurasiformes (meaning "Laurasian forms") is an extinct clade of sauropod dinosaurs from the late Early Cretaceous of Europe, North and South America. It was defined in 2009 by the Spanish paleontologist Rafael Royo-Torres as a clade containing sauropods more closely related to Tastavinsaurus than to Saltasaurus. Genera purported to form part of this clade include Aragosaurus, Galvesaurus, Phuwiangosaurus, Venenosaurus, Cedarosaurus, Tehuelchesaurus, Sonorasaurus and Tastavinsaurus.Its exact position and validity is uncertain and varies between authors. A cladistics analysis found a similar grouping outside Titanosauriformes and basal within the Camarasauromorpha, while others have placed them inside Somphospondyli or Brachiosauridae, consequently, it has been suggested that Tehuelchesaurus along with others of the previously mentioned genera, form two different clades outside titanosauriformes (Carbadillo et al., 2011) while a more recent cladistics analysis found no support for the existence of the clade, with a revision of its supporting features finding them problematic due to being poorly defined, not present on most of the "laurasiforms" or being features present in many sauropods of other clades.

Macronaria

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Macronaria was described by Wilson and Sereno who proposed the new subdivisions among the clade Neosauropoda. Previously, this clade was thought to have Brachiosaurus and Camarasauridae forming one sister group, and Titanosauroidea and Diplodocoidea forming another. This proposed shift with Macronaria placed Diplodocoidea as an outgroup to the new clade Macronaria, under which all other neosauropods would fall.

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Ruyangosaurus

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Sibirotitan

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Somphospondyli

Somphospondylans are an extinct clade of titanosauriform sauropods that lived throughout the world from the Late Jurassic through the Cretaceous in North America, South America, Europe, Asia, Africa and Australia. The group can be defined as "the most inclusive clade that includes Saltasaurus loricatus but excludes Brachiosaurus altithorax". Features found as diagnostic of this clade by Mannion et al. (2013) include the possession of at least 15 cervical vertebrae; a bevelled radius bone end; sacral vertebrae with camellate internal texture; convex posterior articular surfaces of middle to posterior caudal vertebrae; biconvex distal caudal vertebrae; humerus anterolateral corner "squared"; among multiple others.

Soriatitan

Soriatitan ("Soria titan") is a genus of brachiosaurid sauropod from the Early Cretaceous of Spain. It is known from one species, S. golmayensis, found in the Golmayo Formation. It lived between 138 to 130 million years ago was identified by a team of paleontologists in Spain.

Tambatitanis

Tambatitanis is an extinct genus of titanosauriform dinosaur from the Early Cretaceous (probably early Albian) of Japan. It is known from a single type species, Tambatitanis amicitiae. It was probably around 14 meters long and its mass was estimated at some 4 tonnes. It was a basal titanosauriform and possibly belonged to the Euhelopodidae.

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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.

Xert Formation

The Calizas y margas de Xert Formation or Xert Formation is a Cretaceous period geologic formation in Spain.

Mesozoic Era dinosaur remains are among the fossils that have been recovered from the formation most notably those of Tastavinsaurus.

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