Thecodontosaurus

Description

Thecodontosaurus est un genre fossile de dinosaures sauropodomorphes basaux, herbivores, qui vivait durant la fin du Trias supérieur.
C'est l'un des tout premiers dinosaures décrits, le cinquième après Megalosaurus, Iguanodon, Streptospondylus et Hylaeosaurus, même si ses inventeurs Riley et Stutchbury ne le savaient pas, car le groupe des dinosaures n'a été créé qu'en 1842.

Information(s)

Source: The Paleobiology Database

Attibution: Riley and Stutchbury 1836⁴⁴⁶⁸⁵
Statut: Valide
Nom commun: Reptile à dents en forme de socle
Longueur (en m): ?
Largeur (en m): ?
Hauteur (en m): ?
Poids (en m): de ? à ?
Environnement de découverte: terrestrial
Mode de vie: terrestrial
Mode de locomotion: actively mobile
Vision: ?
Alimentation: ?
Mode de reprodution: ?
Classification: Sauropodomorpha >> Saurischia >> Dinosauria
Période: Anisian - Sinemurian (de -246.70 Ma à -192.90 Ma)

Espèce(s):
- Thecodontosaurus antiquus (Valide)⁹⁸¹⁶
- Thecodontosaurus minor ()¹⁸⁵⁹³
- Thecodontosaurus dubius ()⁹⁸¹⁸
- Thecodontosaurus latespinatus ()¹⁶⁹²⁰
- Thecodontosaurus subcylindrodon ()¹⁶⁹²⁰
- Thecodontosaurus hermannianus (Synonyme subjectif de Plateosaurus gracilis)¹⁶⁹²⁰
- Thecodontosaurus alophos (Synonyme subjectif de Nyasasaurus parringtoni)⁶⁹⁶⁹
- Thecodontosaurus minimus (Valide)²⁸¹⁵⁴

Specimen(s):

Thecodontosaurus antiquus: YPM 2195 - scapula, humerus, ulna (left)
Thecodontosaurus antiquus: BRSMG Ca7486 - ulna (right)
Thecodontosaurus antiquus: BRSMG Ca7504 - radius
Thecodontosaurus antiquus: BRSMG Ca7456 - femur
Thecodontosaurus antiquus: BMNH 49984 - tibia
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: holotype SMNS 12667 - scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right)
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: paratype SMNS 12668 - scapula (left) , scapula (right) , humerus (left) , ulna (right)
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: holotype SMNS 12667 - scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right)
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: paratype SMNS 12668 - scapula (left) , scapula (right) , humerus (left) , ulna (right)
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: holotype SMNS 12667 - scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right)
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: paratype SMNS 12668 - scapula (left) , scapula (right) , humerus (left) , ulna (right)
Thecodontosaurus diagnosticus subjective synonym of Efraasia minor: holotype SMNS 12667 - scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right)
Détail des Spécimens

Référence	Type	Partie	Côté	Dimension (en cm)	Lieu de découverte	Commentaires
YPM 2195		scapula		length: 130	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,
YPM 2195		humerus		length: 160	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,
YPM 2195		ulna	left	length: 95	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,
BRSMG Ca7486		ulna	right	length: 110	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,
BRSMG Ca7504		radius		length: 130	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,
BRSMG Ca7456		femur		length: 208	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,	measured from fig. 16
BMNH 49984		tibia		width: 12, length: 205	Collection: Durdham Down, Quarry Steps- Lieu: GB, England,
SMNS 12667	holotype	scapula	left	width: 24	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12668	paratype	scapula	left	width: 20, length: 173	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12668	paratype	scapula	right	width: 19	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12667	holotype	humerus	left	length: 175	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12668	paratype	humerus	left	width: 12, length: 150	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12667	holotype	radius	right	width: 9, length: 92	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12668	paratype	ulna	right	width: 12, length: 86	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12667	holotype	femur	left	width: 22, length: 222	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12667	holotype	femur	right	width: 22, length: 230	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12667	holotype	tibia		length: 216	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,
SMNS 12667	holotype	fibula	right	width: 10, length: 218	Collection: Burrer Quarry, Pfaffenhofen- Lieu: DE, Baden-Württemberg,

Autre(s) Taxon(s) trouvés dans la litterature:
- Thecodontosaurus caducus n. recombined as Pantydraco caducus
- Thecodontosaurus skirtopodus species not entered Prosauropoda
- Thecodontosaurus minor n. species not entered Prosauropoda
- Efraasia minor
- Thecodontosaurus antiquus
- Plateosaurus gracilis
- Nyasasaurus parringtoni
- Thecodontosaurus elisae n. recombined as Plateosaurus elizae
- Thecodontosaurus latespinatus n. species not entered Thecodontosaurus
- Thecodontosaurus minimus
Découverte(s): 21 occcurrences
Ouvrir - Fermer
- Allemagne
  - ?
    - ?
      - Formation ?
        Thecodontosaurus identifié comme Thecodontosaurus latespinatus: ? ¹⁶⁹²⁰
  - Baden-Wurttemberg
    - Stuttgart
      - Formation Löwenstein
        Plateosaurus gracilis: ? ¹⁶⁹²⁰
  - Baden-Württemberg
    - ?
      - Formation ?
        Thecodontosaurus identifié comme Thecodontosaurus latespinatus: ? ⁶²⁹⁶⁶
      - Formation Löwenstein
        Efraasia minor: SMNS 12667: scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right) SMNS 12668: scapula (left) , scapula (right) , humerus (left) , ulna (right) SMNS 12667: scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right) SMNS 12668: scapula (left) , scapula (right) , humerus (left) , ulna (right) SMNS 12667: scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right) SMNS 12668: scapula (left) , scapula (right) , humerus (left) , ulna (right) SMNS 12667: scapula (left) , humerus (left) , radius (right) , femur (left) , femur (right) , tibia, fibula (right) ²⁶³⁵⁹
- France
  - Bourgogne
    - Saône-et-Loire
      - Formation ?
        Thecodontosaurus: ? ³⁶²⁶⁶
  - Champagne-Ardennes
    - Haute-Marne
      - Formation Grès de Infralias
        Plateosaurus elizae identifié comme Thecodontosaurus elisae n. sp.: ? ⁴⁵²⁴³
  - Grand Est
    - Meurthe-et-Moselle
      - Formation ?
        Thecodontosaurus identifié comme Thecodontosaurus latespinatus n. sp.: ? ¹⁶⁹²⁰
- Royaume-Uni
  - England
    - ?
      - Formation Magnesian Conglomerate
        Thecodontosaurus antiquus: YPM 2195: scapula, humerus, ulna (left) BRSMG Ca7486: ulna (right) BRSMG Ca7504: radius BRSMG Ca7456: femur BMNH 49984: tibia ¹⁴⁰⁷¹
    - Avon
      - Formation ?
        Thecodontosaurus antiquus: ? ¹⁵⁵⁸⁷
        Thecodontosaurus antiquus: ? ⁷⁰²⁴⁷
    - Somerset
      - Formation ?
        Thecodontosaurus: ? ⁹³⁹⁰⁰
        Thecodontosaurus: ? ⁵³¹⁷⁸
        Thecodontosaurus: ? ⁴⁶¹⁸²
  - Wales
    - Glamorgan
      - Formation ?
        Thecodontosaurus: ? ¹⁷⁸⁸¹
    - Swansea
      - Formation ?
        Pantydraco caducus identifié comme Thecodontosaurus caducus n. sp.: ? ¹⁰⁶⁶¹
- Lesotho
  - Mafeteng
    - ?
      - Formation Elliot
        Thecodontosaurus minimus: ? ²⁸¹⁵⁴
- Tanzanie
  - Ruvuma
    - ?
      - Formation Manda Beds
        Nyasasaurus parringtoni: ? ⁶⁹⁶⁹
- Afrique du Sud
  - Eastern Cape
    - Maclear
      - Formation Elliot
        Prosauropoda identifié comme Thecodontosaurus minor n. sp.: ? ¹⁸⁵⁹³
  - Free State
    - Fouriesburg
      - Formation Elliot
        Prosauropoda identifié comme Thecodontosaurus skirtopodus: ? ⁹⁸¹⁸
- Zimbabwe
  - Matabeleland North
    - Nyamandhlovu
      - Formation Forest Sandstone
        Thecodontosaurus: ? ³²⁷⁸⁹
        Thecodontosaurus: ? ²⁶⁹⁷⁷
Historique des modifications:

Pas de modification récente.

Publication(s)

La base comprend 21 publication(s).

Source: The Paleobiology Database

↑¹H. Riley and S. Stutchbury. 1836. A description of various fossil remains of three distinct saurian animals discovered in the autumn of 1834, in the Magnesian Conglomerate on Durdham Down, near Bristol. Proceedings of the Geological Society of London 2:397-399
↑¹J. v. Heerden. 1979. The morphology and taxonomy of Euskelosaurus (Reptilia: Saurischia; Late Triassic) from South Africa. Navorsinge van die Nasionale Museum 4(2):23-84
↑^{1 2}S. H. Haughton. 1918. A new dinosaur from the Stormberg Beds of South Africa. Annals and Magazine of Natural History, series 9 2:468-469 (https://doi.org/10.1080/00222931808673788)
↑^{1 2}S. H. Haughton. 1924. The fauna and stratigraphy of the Stormberg Series. Annals of the South African Museum 12:323-497
↑^{1 2 3 4 5 6}F. v. Huene. 1905. Trias-Dinosaurier Europas [European Triassic dinosaurs]. Zeitschrift der Deutschen Geologischen Gesellschaft 57:345-349 (https://doi.org/10.1127/mbzdgg/57/1905/345)
↑^{1 2}S. H. Haughton. 1932. On a collection of Karroo vertebrates from Tanganyika Territory. Quarterly Journal of the Geological Society of London 88(4):634-671 (https://doi.org/10.1144/gsl.jgs.1932.088.01-04.22)
↑^{1 2}P. Ellenberger. 1970. Les niveaux paléontologiques de première apparition des mammifères primoridaux en Afrique du Sud et leur ichnologie. Establissement de zones stratigraphiques detaillees dans le Stormberg du Lesotho (Afrique du Sud) (Trias Supérieur à Jurassique) [The paleontological levels of the first appearance of primordial mammals in southern Africa and their ichnology. Establishment of detailed stratigraphic zones in the Stormberg of Lesotho (southern Africa) (Upper Triassic to Jurassic). In: S. H. Haughton (ed.), Second Symposium on Gondwana Stratigraphy and Paleontology, International Union of Geological Sciences. Council for Scientific and Industrial Research, Pretoria
↑¹F. v. Huene. 1914. I: Animalia. Pars 4. Saurischia et Ornithischia triadica (“Dinosauria” triadica).
↑¹E. Fraas. 1912. Die schwäbischen Dinosaurier [The Swabian dinosaurs]. Jahreshefte des Vereins für Vaterländische Naturkunde in Württemberg 68:lxvi-lxvii
↑¹J. J. Thomasset. 1930. Le bone-bed rhétien de la vallée de la Dheune [The Rhaetian bonebed of the Dheune valley]. Bulletin de la Société Géologique de France, 4e série 30(9):1115-1120
↑¹H.-E. Sauvage. 1907. Vertébrés [Vertebrates]. Note sur L'Infralias de Provenchères-sur-Meuse
↑¹R. Owen. 1842. Report on British fossil reptiles, part II. Report of the British Association for the Advancement of Science 11:60-204
↑¹M. J. Benton and P. S. Spencer. 1995. Fossil Reptiles of Great Britain. Chapman & Hall, London (https://doi.org/10.1097/00006842-199501000-00008)
↑¹T. van den Berg, D. I. Whiteside, and P. A. Viegas, R. Schouten, M. J. Benton. 2012. The Late Triassic microvertebrate fauna of Tytherington, UK. Proceedings of the Geologists' Association 123:638-648 (https://doi.org/10.1016/j.pgeola.2012.05.003)
↑¹C. Moore. 1891. Excursion to Bath. Whit-Monday, June 2nd, and following day. A Record of Excursions Made Between 1860 and 1890
↑¹W. A. Macfadyen. 1970. Geological Highlights of the West Country. A Nature Conservancy Handbook (https://doi.org/10.1038/2281118b0)
↑¹A. Gaudry. 1890. Les Enchainements du Monde Animal dans les Temps Geologiques. Fossiles Secondaires
↑¹B. Edwards and S. E. Evans. 2006. A Late Triassic microvertebrate assemblage from Ruthin Quarry, Wales. 9th International Symposium on Mesozoic Terrestrial Ecosystems and Biota, Abstracts and Proceedings Volume
↑¹A. M. Yates. 2003. A new species of the primitive dinosaur Thecodontosaurus (Saurischia: Sauropodomorpha) and its implications for the systematics of early dinosaurs. Journal of Systematic Palaeontology 1(1):1-42 (https://doi.org/10.1017/s1477201903001007)
↑¹A. M. MacGregor. 1929. Fossil reptilian remains from Glen Curragh Farm, Nyamandhlovu District. Proceedings of the Rhodesia Scientific Association 29:6-7
↑¹G. Bond. 1955. A note on dinosaur remains from the Forest Sandstone (Upper Karroo). Occasional Papers of the National Museums of Southern Rhodesia 2(20):795-800

Galerie d'images

Source: Wikimédia

Thecodontosaurus antiquus

Thecodontosaurus reconstruction