Gallery #1

All specimens on gallery pages are not for sale.

Siamraptor

Fossilized dinosaur tooth from a very rare Siamraptor theropod.
  • Species: cf. Siamraptor suwati (?)
  • Catalogue ID: TYI-LAO-8684-7008
  • Formation: Grès supérieurs Formation
  • Age: Lower Cretaceous (Aptian-Albian)
  • Provenance: Savannakhet Province, Laos
  • Size: 31.6mm
  • Details: Mesial Density 17/5mm; Distal Density 14.5/5mm; CH ±33.5mm; CBL 18mm; CBW 7mm
  • Condition: No repair or restorations; stabilized with Polyvinyl butyral (PVB) in acetone

A rare, possibly carcharodontosaurian tooth from the Grès supérieurs Formation in Laos. While there are no theropods (at the time of writing this page) other than Ichthyovenator described from this deposit, the tooth may belong to Siamraptor or something very similar due to the Grès supérieurs Formation being the Laotian equivalent to the Khok Kruat Formation in Thailand. The deposits in this region are still poorly understood, and many more genera and species could be described in the future.

El Mers Ceratosaurid

Fossilized dinosaur tooth from an unknown ceratosaurid theropod with repair.
  • Species: Ceratosauria indet.
  • Catalogue ID: TYI-MAR-6487-1400
  • Formation: El Mers Group
  • Age: Middle Jurassic (Bathonian-Callovian)
  • Provenance: Boulahfa, Boulemane, Atlas Mountains, Morocco
  • Size: 30mm
  • Details: Mesial Density n/a; Distal Density 8-9/5mm; CH ±29.3mm; CBL 12mm; CBW 9mm
  • Condition: Has repair, but no restorations; stabilized with Polyvinyl butyral (PVB) in acetone

A rare premaxillary tooth of a Middle Jurassic theropod that resembles those of Ceratosaurus from younger Upper Jurassic deposits. These teeth from other locales have sometimes been described as basal spinosaurid teeth, while ceratosaurid in others. Based on morphological similarities to Ceratosaurus, it's likely ceratosaurian in nature.

Irhazer Ceratosaurid

Fossilized dinosaur tooth from an unknown ceratosaurid theropod.
  • Species: Ceratosauria indet. (Possibly Spinostropheus gautieri)
  • Catalogue ID: TYI-NER-1624-2955
  • Formation: Irhazer Group (Irhazer II or Tiourarén Formation)
  • Age: Middle Jurassic (Bathonian-Oxfordian)
  • Provenance: Nafanfo, Agadez, Niger
  • Size: 23.8mm
  • Details: Mesial Density n/a; Distal Density 13/5mm ;CH ±23.8mm; CBL 12.2mm; CBW 9.8mm
  • Condition: No repair or restorations; stabilized with Polyvinyl butyral (PVB) in acetone

An unusual theropod premaxillary tooth attributed to basal spinosaurids. However, it is likely that these are ceratosaurian in nature due to the similarities they share with Ceratosaurus from Upper Jurassic deposits. Spinostropheus gautieri is a ceratosaurian known from these deposits, though their teeth (if they have any) is currently unknown. Unfortunately, the locale "Nafanfo" does not appear on any maps making it difficult to ascertain what formation they come from. It is likely that the name was lost in translation or miscommunication at some point.

Siamosaurus

Fossilized dinosaur tooth from a rare Siamosaurus theropod with repair.
  • Species: Siamosaurus suteethorni
  • Catalogue ID: TYI-THA-6245-0050
  • Formation: Sao Khua Formation
  • Age: Lower Cretaceous (Valanginian-Hauterivian)
  • Provenance: Khon Kaen Province, Thailand
  • Size: 45mm
  • Details: No serrations; CH ±45mm; CBL 15.1mm; CBW 10.7mm; ±20-25 ridges on both sides
  • Condition: Has repair and some filling with an unknown adhesive; stabilized with Polyvinyl butyral (PVB) in acetone, some original unknown adhesive remains

This is a large tooth of a Siamosaurus; while not in the best condition, this is a very rare and seldom seen spinosaurid. The tooth was originally fully covered in an unknown adhesive which obscured the diagnostic ridges. A shard toward the tip fell out after a big clump of glue melted away, but the piece did not fit back into the slot, possibly due to excess glue still on the tooth, or the shard did not belong in that section. Siamosaurus of any quality is incredibly difficult to obtain due to the short window they were exported in the late 90s before their swift ban in the early 2000s. This void has since been filled by similar, if not identical fauna from Laos; cf. Siamosaurus sp. can also be found in the Grès supérieurs Formation. It is also not rare to see these teeth tampered with gold inlays or polish due to the religious significance these teeth hold locally.

Majungasaurus

Fossilized dinosaur vertebrae from a Majungasaurus theropod.
  • Species: Majungasaurus crenatissimus (syn. Majungatholus atopus)
  • Catalogue ID: TYI-MAD-8301-8169
  • Formation: Maevarano Formation
  • Age: Upper Cretaceous (Maastrichtian)
  • Provenance: Berivotra, Mahajanga Province, Madagascar
  • Size: 87.6mm x 76.6mm; Centrum 80.1mm x 39.4mm
  • Condition: No repair or restorations; stabilized with Polyvinyl butyral (PVB) in acetone

A beautiful vertebrae from a Majunagasaurus, an abelisaurid infamous for cannibalism. The specimen does have some weathering and cracks here and there, but no restoration or repair as far as I can tell. The vast majority of Majungasaurus material on the market is isolated teeth making bone material like this quite unusual. While Majungasaurus fossils are not actually rare in the field, this species is now sought after in private collections as vertebrate fossils are no longer allowed for export from Madagascar. These specimens are still sometimes labeled as Majungatholus atopus which can cause confusion, but both species names refer to the same animal with Majungatholus being a synonym.