保存完好的棘龙恐龙尾椎骨(尾椎)—— 白垩纪 Kem Kem 地层 - 椎骨化石





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Spinosaurus aegyptiacus 尾椎骨, 上白堊紀 Cenomanian,Kem Kem Beds,原始/官方真實性,天然狀態,尺寸 7.5 cm × 7.4 cm。
賣家描述
Scientific name: Spinosaurus aegyptiacus - Caudal (Tail) vertebra bone
Location: Taouz, South Morocco
Geological Formation: Ifezouane Fm - KemKem Red Sandstone Beds
Age: Upper Cretaceous, Cenomanian stage ( 96 million years)
Size: 7,5cm x 7,4cm
REF.: #J660
DESCRIPTION:
A very good and well-preserved caudal vertebra of Spinosaurus, displaying a substantial and clearly defined vertebral centrum, together with the basal portions of the neural spine and transverse processes.
Scientifically, Spinosaurus caudal vertebrae are particularly interesting because the tail of this remarkable theropod was highly specialized. The caudal series is characterized by robust centra associated with strongly developed neural spines and transverse processes, which become especially elongated in portions of the tail. This distinctive morphology produced a tall, laterally expanded tail profile and is consistent with the unusual locomotor adaptations proposed for Spinosaurus. Although the upper portions of the processes are not preserved in this specimen, their surviving bases and the morphology of the centrum clearly illustrate the characteristic construction of a spinosaurid caudal vertebra.
The specimen retains attractive natural surface texture, coloration and anatomical detail, making it an excellent representative example of Spinosaurus axial anatomy and an appealing fossil for a serious dinosaur collection.
Condition: Several natural fractures have been re-glued and lightly filled for stabilization and presentation. Restoration is minor and does not significantly affect the overall quality or integrity of the specimen.
All of our fossils come with a Certificate of Authenticity. Every week, the issued Certificates of Authenticity are updated in our database verification system on our website. If you find that your certificate has not yet been updated, please contact us and we will update it immediately. Display box not included.
賣家的故事
Scientific name: Spinosaurus aegyptiacus - Caudal (Tail) vertebra bone
Location: Taouz, South Morocco
Geological Formation: Ifezouane Fm - KemKem Red Sandstone Beds
Age: Upper Cretaceous, Cenomanian stage ( 96 million years)
Size: 7,5cm x 7,4cm
REF.: #J660
DESCRIPTION:
A very good and well-preserved caudal vertebra of Spinosaurus, displaying a substantial and clearly defined vertebral centrum, together with the basal portions of the neural spine and transverse processes.
Scientifically, Spinosaurus caudal vertebrae are particularly interesting because the tail of this remarkable theropod was highly specialized. The caudal series is characterized by robust centra associated with strongly developed neural spines and transverse processes, which become especially elongated in portions of the tail. This distinctive morphology produced a tall, laterally expanded tail profile and is consistent with the unusual locomotor adaptations proposed for Spinosaurus. Although the upper portions of the processes are not preserved in this specimen, their surviving bases and the morphology of the centrum clearly illustrate the characteristic construction of a spinosaurid caudal vertebra.
The specimen retains attractive natural surface texture, coloration and anatomical detail, making it an excellent representative example of Spinosaurus axial anatomy and an appealing fossil for a serious dinosaur collection.
Condition: Several natural fractures have been re-glued and lightly filled for stabilization and presentation. Restoration is minor and does not significantly affect the overall quality or integrity of the specimen.
All of our fossils come with a Certificate of Authenticity. Every week, the issued Certificates of Authenticity are updated in our database verification system on our website. If you find that your certificate has not yet been updated, please contact us and we will update it immediately. Display box not included.

