Κορυφαίος σπάνιος ιγουαναδοντιανός δεινόσαυρος με τεράστιο μερικώς ριζωμένο δόντι (cf. Ouranosaurus) - Απολιθωμένο δόντι

Scientific name: Unidentified Iguanodontian (ornithopod dinosaur) tooth. cf Ouranosaurus nigeriensis

Location: Gadoufaoua, Téneré Desert, Niger.

Geological Formation: Erlhaz Fm

Age: Lower Cretaceous, Aptian/Albian stage ( 113 million years)

Size: 4,4cm

REF.: #S536

DESCRIPTION:

Observations: With only one isolated tooth, it is very difficult to arrive at a precise taxonomic ID. The morphology of this tooth undoubtedly belongs to an Iguanodontian. Due to its huge size, we must rule out Elrhazosaurus or Lurdusaurus; therefore, it must correspond to the bigger Iguanodontian present in the lower Cretaceous of Elrhaz Fm: Ouranosaurus nigeriensis.

About restorations/repairs/comments: Not restored or glued. Its an outstanding huge partially rooted specimen. Its quite rare to find specimens like this one. Longitudinal ridges are still visible. It also shows a nicely developed feeding wear.

Iguanodontian dinosaurs from the Early Cretaceous of Niger, specifically within the Elrhaz Formation (Gadoufaoua deposits), include the prominent sail-backed Ouranosaurus nigeriensis and the heavily built Lurdusaurus arenatus. Another basal iguanodontian, Elrhazosaurus nigeriensis, is known from isolated fossils found in the region.

Ouranosaurus nigeriensis: Named by Philippe Taquet in 1976, this 7–8.3 meter long herbivore is known for the, likely, heat-regulating or display-oriented sail on its back formed by long neural spines.

Lurdusaurus arenatus: Described as having a "massively-constructed" body, this iguanodontian had a unique, almost sloth-like body form compared to other members of its group.

Elrhazosaurus nigeriensis: Originally thought to be a species of Valdosaurus, this basal iguanodontian is known from fragmentary remains.
These dinosaurs thrived in what is now the Sahara Desert during the Aptian stage (approx. 115–105 million years ago).

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