Yandusaurus

Description

Source: Wikipédia

Yandusaurus est un genre fossile de dinosaure ornithischien bipèdes de la famille des Hypsilophodontidae. selon Paleobiology Database en 2025, ce genre est resté monotypique et la seule espèce, selon PaleoDB est Yandusaurus hongheensis.
Il a été découvert dans la formation supérieure de Xiashaximiao qui se place dans la partie terminale de la formation de Dashanpu affleurant au nord-est de la ville de Zigong dans le Sichuan en Chine. Cette formation est d'âge Jurassique moyen, probablement Bathonien ou Callovien, il y a entre 168,2 ± 1,2 et 161,5 ± 1,0 Ma (millions d'années).

Information(s)

Source: The Paleobiology Database

• Attibution: He 1979⁷³⁵⁷
• Statut: Valide
• Nom commun:
• 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: herbivore
• Mode de reprodution: oviparous, dispersal=direct/internal,mobile
• Classification: Neornithischia >> Ornithischia >> Dinosauria
• Période: Bajocian (de -170.90 Ma à -168.20 Ma)
• Espèce(s):
  • Yandusaurus hongheensis (Valide)⁷³⁵⁷
• Specimen(s):
  • Yandusaurus multidens recombined as Hexinlusaurus multidens: holotype T6001 - femur (left) , tibia (left) , skull, scapula (right) , coracoid (right) , humerus (both) , ulna (both) , radius (both) , fibula (left)
  • Yandusaurus multidens recombined as Hexinlusaurus multidens: T6002 - scapula (right) , humerus (right) , ulna (left) , femur (left) , tibia (both) , fibula (left)
  • Yandusaurus multidens recombined as Hexinlusaurus multidens: T6001 - femur (left) , tibia (left) , skull, scapula (right) , coracoid (right) , humerus (both) , ulna (both) , radius (both) , fibula (left)
  • Yandusaurus multidens recombined as Hexinlusaurus multidens: T6002 - scapula (right) , humerus (right) , ulna (left) , femur (left) , tibia (both) , fibula (left)
  • Yandusaurus multidens recombined as Hexinlusaurus multidens: holotype T6001 - femur (left) , tibia (left) , skull, scapula (right) , coracoid (right) , humerus (both) , ulna (both) , radius (both) , fibula (left)
  • Yandusaurus multidens recombined as Hexinlusaurus multidens: T6002 - scapula (right) , humerus (right) , ulna (left) , femur (left) , tibia (both) , fibula (left)
  • Yandusaurus hongheensis: holotype - ?
  • Détail des Spécimens

  Référence	Type	Partie	Côté	Dimension (en cm)	Lieu de découverte	Commentaires
  T6001	holotype	femur	left	length: 156, width: 12	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6001	holotype	tibia	left	length: 184, width: 13	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6001	holotype	skull		width: 36, length: 90	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"estimated complete length" and "occipital breadth"
  T6001	holotype	scapula	right	width: 31, length: 80	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"length" and greatest proximal breadth
  T6001	holotype	coracoid	right	width: 31, length: 27	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	dorsoventrallength and greatest anteroposterior breadth
  T6002		scapula	right	width: 52, length: 128	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"length" and greatest proximal breadth
  T6001		humerus	both	length: 102, diameter: 7	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6001		ulna	both	length: 70	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong
  T6001		radius	both	length: 69	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong
  T6002		humerus	right	length: 146, diameter: 12	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong
  T6002		ulna	left	length: 95, diameter: 6	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6001	holotype	fibula	left	width: 5, length: 170	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6002		femur	left	width: 13, length: 210	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6002		tibia	both	width: 19, length: 246	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong	"smallest diameter"
  T6002		fibula	left	length: 223	Collection: Dashanpu Dinosaur Quarry [lower]- Lieu: CN, Sichuan, Zigong
  	holotype	scapula	both	width: 93, length: 262	Collection: Honghe Dam, Hongheba- Lieu: CN, Sichuan,	"length" and "breadth of distal end"
  	holotype	coracoid	left	length: 29	Collection: Honghe Dam, Hongheba- Lieu: CN, Sichuan,	based on scapulacoracoid length minus scapula length
  	holotype	humerus	both	width: 30, length: 259	Collection: Honghe Dam, Hongheba- Lieu: CN, Sichuan,	"smallest shaft diameter"
  	holotype	radius		length: 153	Collection: Honghe Dam, Hongheba- Lieu: CN, Sichuan,	side not indicated

• Autre(s) Taxon(s) trouvés dans la litterature:
  • Yandusaurus multidens n. recombined as Hexinlusaurus multidens
  • Yandusaurus hongheensis
  • Yandusaurus
• Découverte(s): 3 occcurrences
  Ouvrir - Fermer
  • Chine
    • Sichuan
      • ?
        • Formation Shaximiao
          • Yandusaurus hongheensis: ¹⁵⁰⁵⁸
      • Kaijiang
        • Formation Shaximiao
          • Yandusaurus: ? ¹⁵⁰⁵⁸
      • Zigong
        • Formation Shaximiao
          • Hexinlusaurus multidens identifié comme Yandusaurus multidens n. sp.: T6001: femur (left) , tibia (left) , skull, scapula (right) , coracoid (right) , humerus (both) , ulna (both) , radius (both) , fibula (left) T6002: scapula (right) , humerus (right) , ulna (left) , femur (left) , tibia (both) , fibula (left) T6001: femur (left) , tibia (left) , skull, scapula (right) , coracoid (right) , humerus (both) , ulna (both) , radius (both) , fibula (left) T6002: scapula (right) , humerus (right) , ulna (left) , femur (left) , tibia (both) , fibula (left) T6001: femur (left) , tibia (left) , skull, scapula (right) , coracoid (right) , humerus (both) , ulna (both) , radius (both) , fibula (left) T6002: scapula (right) , humerus (right) , ulna (left) , femur (left) , tibia (both) , fibula (left) ⁶⁹⁷⁰
• Historique des modifications:

Pas de modification récente.