
Please note that the results listed on this page are inclusive of any Sotheby's Premiums and exclusive of any applicable taxes and costs, unless otherwise noted.
Please note that the results listed on this page are inclusive of any Sotheby's Premiums and exclusive of any applicable taxes and costs, unless otherwise noted.
Natural History including Gus Rex
1 July - 14 July 2026 • New York
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Your local time • 14:00 PM GMT

1. Trilobite Fossils — Cambrian Species
Middle Cambrian (approx. 502 million years ago), Anti-Atlas Mountain Range, Alnif, Morocco

2. Trilobite Fossils — Spiny Form
Ordovician, Katian Stage (approx. 450 million years ago), Erfoud, Morocco

3. Marine Reptile Fossil (Ichthyosaur) — Signed Dr. B. Hauff 1927
Early Jurassic, Toarcian Stage (approx. 180 million years ago), Holzmaden, Germany

4. Marine Reptile Fossil (Ichthyosaur) — Juvenile Specimen
Early Jurassic, Toarcian Stage (approx. 180 million years ago), Holzmaden, Germany

5. Henry De La Beche
"Awful Changes," 1830.

6. Fossil Sea Lilies — Jurassic Display
Early Jurassic, Toarcian Stage (approx. 180 million years ago), Holzmaden, Germany

7. Horseshoe Crab Fossil With Trackway
Late Jurassic, Kimmeridgian Stage (approx. 155-150 million years ago), Solnhofen, Germany

8. Allosaurus Jaws With Teeth — Unique Skull Display
A Unique Preparation of the Jaws of an Allosaurus Fragilis. Late Jurassic (approx. 150 million years ago), Morrison Formation, Moffat County, Colorado, USA

9. Stegosaurus Dorsal Plate
Late Jurassic (approx. 150 million years ago) Morrison Formation, Bone Cabin Quarry, Albany County, Wyoming, USA

11. Mounted Jurassic Ammonite
Late Jurassic, Oxfordian Stage (approx. 161-154 million years ago), Madagascar

12. Mounted Jurassic Ammonite
Late Jurassic, Oxfordian Stage (approx. 161-154 million years ago), Madagascar

13. Trio of Cretaceous Ammonites — Spiny Form
Early Cretaceous (approx. 130 million years ago), Peyroules, France

14. Mounted Cretaceous Ammonite
Early Cretaceous (approx. 130 million years ago), Volga River, Ulyanovsk Oblast, Russia

15. Mounted Cretaceous Ammonite
Early Cretaceous, Albian Stage (approx. 110 million years ago), Madagascar

16. Large Iridescent Ammonite
Late Cretaceous (approx. 71 million years ago), Bearpaw Formation, Alberta, Canada

18. Brachylophosaurus — Skin Impressions and Vertebrae
Late Cretaceous (approx. 78-75 million years ago), Judith River Formation, Phillips Co., Montana

20. Tyrannosaurus Rex
"Gus" - A Mounted Tyrannosaurus Rex Skeleton. Late Cretaceous, Maastrichtian Stage (approx. 67 million years ago), Hell Creek Formation, Harding County, South Dakota, USA

21. Tyrannosaurus Rex Leg
The Mounted Leg of a Tyrannosaurus Rex. Late Cretaceous, Maastrichtian Stage (approx. 67 million years ago), Hell Creek Formation, Ziebach County, South Dakota, USA

22. Tyrannosaurus Rex Jaw With Teeth
The Partial Jaw of a Tyrannosaurus Rex With Four Rare Black Embedded Teeth. Late Cretaceous (approx. 67 million years ago), Hell Creek Formation, Dawson County, Montana, USA

24. Tyrannosaurus Rex Tooth
Late Cretaceous (approx. 67 million years ago), Hell Creek Formation, Perkins County, South Dakota, USA

25. Tyrannosaurus Rex Tooth
Late Cretaceous (approx. 67 million years ago), Hell Creek Formation, Harding County, South Dakota, USA

26. Gryposaurus
The Mounted Skeleton of a Juvenile Gryposaurus. Late Cretaceous, Maastrichtian Stage (approx. 74 million years ago), Judith River Formation, Choteau County, Montana, USA

28. Chesley Bonestell
"The Emperor of Shangrila Rides a Triceratops Past a Volcanic Range" | A Rare Dinosaur Painting by the Father of Space Art, 1977

29. Fossil Branches With Stingray and Fish
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming, USA

30. Five Panel Multi-Fish Display
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming, USA

31. Three Panel Multi-Fish Display
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming, USA

32. Fossil Lily Pad With Fish
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming, USA

33. Fossil Palm Frond
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming

34. Fossil Palm Flower Stem With Fish
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming, USA

35. Fossil Stingray
Early Eocene (approx. 52-48 million years ago), Green River Formation, Lincoln County, Wyoming, USA

36. Banded Iron Formation
Archean Eon (approx. 3-2.5 billion years ago), Port Hedland Area, Pilbara Region, Western Australia

37. Rhyolite Slab
Late Triassic (approx. 225-210 million years ago), Chinle Formation, Southern Utah, USA

39. Petrified Wood Wall Display
Late Triassic (approx. 220 million years ago), Holbrook, Arizona, United States

40. Petrified Oak Wood — Growth Rings Revealed
Miocene (approx. 23-5.3 million years ago), Stinkingwater Pass, Harney County, Oregon, USA

41. Petrified Spruce Wood — Visible Growth Rings
Miocene to Pliocene (approx. 23-2.6 million years ago), Oregon, USA

42. Gogotte Sandstone Formation
Oligocene (approx. 30 million years ago), Fontainebleau, France

43. Large Gogotte Sandstone Formation
Oligocene (approx. 30 million years ago), Fontainebleau, France

44. Gogotte Sandstone Formation
Oligocene (approx. 30 million years ago), Fontainebleau, France

46. Large Gogotte Sandstone Formation
Oligocene (approx. 30 million years ago), Fontainebleau, France

47. Very Large Gogotte Sandstone Formation
Oligocene (approx. 30 million years ago), Fontainebleau, France

48. Gogotte Sandstone Formation
Oligocene (approx. 30 million years ago), Fontainebleau, France

50. Saint-Jacques Shell Fossil Wall Display
Early Miocene, Burdigalian Stage (approx. 20-16 million years ago), Lacoste Quarry, Vaucluse, France

51. Saint-Jacques Shell Fossil Sculpture
Early Miocene, Burdigalian Stage (approx. 20-16 million years ago), Lacoste Quarry, Vaucluse, France

52. Megalodon Shark Tooth
Miocene (approx. 23-5.3 million years ago), Hawthorne Formation, Coosawhatchie River, Beaufort County, South Carolina, USA

53. Megalodon Shark Tooth
Miocene (approx. 23-5.3 million years ago), Yorktown Formation, PCS Phosphate Pit (Lee Creek Mine), Beaufort County, Aurora, North Carolina, USA

54. Megalodon Shark Tooth
Miocene (approx. 23-5.3 million years ago), Hawthorne Formation, Cane Patch Creek, Chatham County, Georgia, USA

55. Megalodon Shark Tooth
Miocene (approx. 23-5.3 million years ago), Yorktown Formation, PCS Phosphate Pit (Lee Creek Mine), Beaufort County, Aurora, North Carolina, USA

56. Megalodon Shark Tooth
Miocene (approx. 23-5.3 million years ago), Hawthorne Formation, Morgan River, Beaufort County, South Carolina, USA