Bothriospondylus

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Bothriospondylus
Temporal range:
Ma
↓
Illustration of the holotype vertebrae of B. suffosus
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: †Sauropodomorpha
Clade: †Sauropoda
Clade: †Neosauropoda (?)
Genus: †Bothriospondylus
Owen, 1875
Species:
†B. suffossus
Binomial name
†Bothriospondylus suffossus
Owen, 1875
Synonyms

Bothriospondylus ("excavated

sauropod dinosaur. It lived during the Late Jurassic in England, and the type and only species is B. suffossus.[1]

Discovery and naming

The type species, Bothriospondylus suffossus, was described by Richard Owen in 1875.[1] The specific epithet suffossus means "undermined" in Latin, a reference to the fact that pleurocoels had hollowed out the sides of the vertebra. It is often incorrectly spelled as "suffosus". Owen based the species on holotype NHMUK R.44592-5, a set of four dorsal vertebrae found in Wiltshire in stratum from the Kimmeridgian, the Kimmeridge Clay. Also three unfused sacral vertebrae were referred.

Holotype of B. magnus (Lectotype of Ornithopsis)

At the same time Owen named three other species of Bothriospondylus. B. robustus was based on NHMUK R.22428, a dorsal from the same location. B. elongatus was based on a vertebra from

lectotype NHMUK 28632.[1] Owen himself in an addendum to the same publication renamed B. robustus to Marmarospondylus robustus. Friedrich von Huene in 1908 referred the material to Pelorosaurus
and in 1922 made B. suffossus into a Ornithopsis suffossa because the latter generic name has priority.

More complete material from

Franz Nopcsa in 1902 assigned to Bothriospondylus a vertebra from Argentina that later would be renamed Nopcsaspondylus. A skeleton from France was assigned to Bothriospondylus madagascariensis,[3] but has been described as a new genus and species of brachiosaurid, Vouivria.[4]

In 1986 José Fernando Bonaparte moved material from "B." sp. into its own genus,

lectotype of Lapparentosaurus.[5]

A revision in 2010 by

Narindasaurus thevenini by Royo-Torres et al. in 2020.[7]

Classification

Bothriospondylus has over the years been assigned to many groups — even in a Bothriospondylidae of its own

synapomorphies of the Brachiosauridae and cannot be further determined than a very general Neosauropoda.[6]

Current species

Humerus of "B. madagascariensis" (Vouivria)

Only the type species of Bothriospondylus can be referred, because of the dubious nature of the genus.[6]

Reassigned species

Several species have been referred to Bothriospondylus over its existence, with nearly all being reassigned to a new genus.

References

  1. ^
    doi:10.1080/02693445.1875.12113267
    .
  2. ^
    S2CID 128431891
    .
  3. ^ de Lapparent, A.F. (1943). "Les dinosauriens jurassiques de Damparis (Jura)". Mémoires de la Société Géologique de France. 47: 5–20.
  4. PMID 28480136
    .
  5. ^ a b Bonaparte, J.F. (1986). "Les dinosaures (Carnosaures, Allosauridés, Sauropodes, Cétosauridés) du Jurassique Moyen de Cerro Cóndor (Chubut, Argentina)". Annales de Paléontologie (Vert.-Invert.). 72 (3): 325–386.
  6. ^
    doi:10.1111/j.1475-4983.2009.00919.x
    .
  7. ^
    doi:10.1093/zoolinnean/zlaa091
    .

Further reading

  • Nopcsa, F. 1902. Notizen uber Cretacischen Dinosaurier. Pt. 3. Wirbel eines sudamerikanischen Sauropoden. Akademie der Wissenschaften, 3, 108–114.
  • Thevenin, A. 1907. Pale´ontologie de Madagascar. Annales de Pale´ontologie, 2, 121–136.
  • Thulborn, R. A. 1973. Teeth of ornithischian dinosaurs from the Upper Jurassic of Portugal. Memo´ria dos Servic¸os Geolo´gicos de Portugal (Nuova Se´ria), 22, 89–134.
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