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Orthoceras Ammonite Fossil, Devonian Period, Lot of 5: Orthoceras Ammonite Fossil, Devonian Period, Lot of 5

Jun 07, 2026

Orthoceras Ammonite Fossil, Devonian Period, Lot of 5

Est. $15-$10,000

$10

Heartland Artifact AuctionsQuincy, IL

Fossil Ammonite Cluster: Lower Jurassic, Sinemurian Stage, circa 199-190 million years B.P. A group of ammonites on a matrix nodule, possibly Arnioceras or Cymbites group. 899 grams, 14 cm (5 1/2 in.). [No Reserve] From Whitb

Jun 06, 2026

Fossil Ammonite Cluster

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Fossil Mahoumacrinus Crinoid Plate: Devonian Period, circa 400 million years B.P. On a tongue-shaped matrix showing part of the stalk and calyces. 797 grams, 19.1 cm (7 1/2 in.). [No Reserve] From a Cambridgeshire, UK, collection. TimeL

Jun 06, 2026

Fossil Mahoumacrinus Crinoid Plate

Est. £40-£60

£5

TimeLine Auctions Ltd.Harwich, Essex

Large Fossil Agadir Ammonite with Cut Base: Cretaceous Period, circa 145-66 million years B.P. With a cut base and showing characteristic ribbing, possibly Calycoceras. 1.58 kg, 13 cm (5 1/8 in.). [No Reserve] From a Cambridgeshire, UK, collect

Jun 06, 2026

Large Fossil Agadir Ammonite with Cut Base

Est. £60-£80

£5

TimeLine Auctions Ltd.Harwich, Essex

Brittlestar Fossil on Matrix: Middle Ordovician Period, circa 450 million years B.P. Ophiuroidea sp. on an irregular matrix. 388 grams, 13.5 cm (5 1/4 in.). [No Reserve] From a Cambridgeshire, UK, collection. TimeLine Auctions fol

Jun 06, 2026

Brittlestar Fossil on Matrix

Est. £40-£60

£5

TimeLine Auctions Ltd.Harwich, Essex

Group of Fossil Sand Shark Teeth: Eocene Period, 56-33 million years B.P. Comprising various sizes of Otodus obliquus teeth. 29 grams total, 16-24.5 mm (5/8 - 1 in.). [No Reserve] From a Cambridgeshire, UK, collection. TimeLine Auctio

Jun 06, 2026

Group of Fossil Sand Shark Teeth

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Large Madagascan Natural Unpolished Fossil Wood Section: Triassic Period, 251-199 million years B.P. A thick slab of agatised wood with some bark detailing on the outside. 1.92 kg, 26.6 cm (10 1/2 in.). [No Reserve] From Madagascar. Ex Mineral Imports, Lond

Jun 06, 2026

Large Madagascan Natural Unpolished Fossil Wood Section

Est. £80-£100

£5

TimeLine Auctions Ltd.Harwich, Essex

Large Fossil Agadir Ammonite with Cut Base: Cretaceous Period, circa 145-66 million years B.P. With a cut base and showing characteristic ribbing, possibly Calycoceras. 2 kg, 12.1 cm (4 3/4 in.). [No Reserve] From a Cambridgeshire, UK, collecti

Jun 06, 2026

Large Fossil Agadir Ammonite with Cut Base

Est. £60-£80

£5

TimeLine Auctions Ltd.Harwich, Essex

Madagascan Polished Fossil Ammonite Plate: Jurassic Period, circa 199-145 million years B.P. A circular composite plate composed of overlapping Cleoniceras sp. ammonites. 725 grams, 22.9 cm (9 in.). [No Reserve] From a Cambridgeshire, UK, coll

Jun 06, 2026

Madagascan Polished Fossil Ammonite Plate

Est. £80-£100

£5

TimeLine Auctions Ltd.Harwich, Essex

Fossil Sand Shark Tooth Group: Eocene Period, 56-33 million years B.P. Comprising various sizes of Otodus obliquus teeth. 80 grams total, 8-28 mm (1/4 - 1 in.). [98, No Reserve] Ex Norfolk, UK, collection. TimeLine Auctions follows

Jun 06, 2026

Fossil Sand Shark Tooth Group

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Three [3] Madagascan Cut and Polished Fossil Tree Sections: Comprising three good-sized agatised slices, showing the internal structure of the wood. 1.61 kg total, 11.5-18.7 cm (4 1/2 - 7 3/8 in.). [3, No Reserve] Ex Mineral Imports, London, UK. Gregory, Bottl

Jun 06, 2026

Three [3] Madagascan Cut and Polished Fossil Tree Sections

Est. £40-£60

£5

TimeLine Auctions Ltd.Harwich, Essex

Mosasaur 'Marine Dinosaur' Fossil Tooth Group: Cretaceous Period, circa 145-65 million years B.P. Comprising two teeth showing good brown enamel, repaired. 67.7 grams total, 45-59 mm (1 3/4 - 2 1/4 in.). [2, No Reserve] From Morocco, North Africa.

Jun 06, 2026

Mosasaur 'Marine Dinosaur' Fossil Tooth Group

Est. £40-£60

£5

TimeLine Auctions Ltd.Harwich, Essex

Polished Fossil Orthoceras Book End Pair: Devonian Period, circa 417-354 million years B.P. Each polished and cut from a block of fossiliferous stone and set with Orthoceras sp. specimens. 3.4 kg total, 14.5 cm (5 3/4 in.). [2, No Reserve] Fr

Jun 06, 2026

Polished Fossil Orthoceras Book End Pair

Est. £30-£40

£5

TimeLine Auctions Ltd.Harwich, Essex

Vinctifer Comptoni Fossil Fish: Cretaceous Period, 120 million years B.P. Comprising the frontal half of Vinctifer sp. fish. 763 grams, 30.4 cm (12 in.). [No Reserve] From a Cambridgeshire, UK, collection. TimeLine Auctions follows

Jun 06, 2026

Vinctifer Comptoni Fossil Fish

Est. £50-£70

£5

TimeLine Auctions Ltd.Harwich, Essex

Two Fossil Sawfish Rostral Spines: Cretaceous Period, circa 100-66 million years B.P. Comprising two Onchopristus numidus sawfish rostral teeth. 16.4 grams total, 53 mm (2 1/8 in.). [2, No Reserve] From Whitby, Yorkshire, UK. From a Ca

Jun 06, 2026

Two Fossil Sawfish Rostral Spines

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Fossil Dactylioceras Ammonite: Jurassic Period, Toarcian Stage, circa 180 million years B.P. A rounded nodule containing an Eleganticeras sp. specimen. 1.21 kg, 15.5 cm (6 1/8 in.). [No Reserve] From Whitby, Yorkshire, UK. From a C

Jun 06, 2026

Fossil Dactylioceras Ammonite

Est. £30-£40

£5

TimeLine Auctions Ltd.Harwich, Essex

Fossil Shrimps from Lebanon: Cretaceous Period, circa 110 million years B.P. Comprising two rectangular matrices, each with a Carpopenaeus sp. specimen. 316 grams total, 8.1-11.3 cm (3 1/8 - 4 3/8 in.). [2, No Reserve] From a Cam

Jun 06, 2026

Fossil Shrimps from Lebanon

Est. £30-£40

£5

TimeLine Auctions Ltd.Harwich, Essex

Mosasaur 'Marine Dinosaur' Fossil Tooth on Composite Rock: Cretaceous Period, circa 145-65 million years B.P. The tooth showing dark brown enamel, set in a sandstone matrix with a composite root for display. 567 grams, 15 cm (5 7/8 in.). [No Reserve] From Mor

Jun 06, 2026

Mosasaur 'Marine Dinosaur' Fossil Tooth on Composite Rock

Est. £30-£40

£5

TimeLine Auctions Ltd.Harwich, Essex

Polished Madagascan Fossil Cleoniceras Ammonite: Jurassic Period, circa 199-145 million years B.P. Polished specimen showing attractive pattern formation. 135 grams, 84 mm (3 1/4 in.). [No Reserve] From a Cambridgeshire, UK, collection. TimeLine Auc

Jun 06, 2026

Polished Madagascan Fossil Cleoniceras Ammonite

Est. £30-£40

£5

TimeLine Auctions Ltd.Harwich, Essex

Fossil Dragon Fly Larvae on Matrix: Miocene Period, circa 16 million years B.P. Comprising two Libellula doris larvae on an oval matrix; supplied in a glazed display case with an information ticket. 13.4 grams, 90 mm (3 1/2 in.). [No Re

Jun 06, 2026

Fossil Dragon Fly Larvae on Matrix

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Fossil Isle of Skye Ammonites: Middle Jurassic, Aalenian Stage, Murchisonae Zone, circa 174-170 million years B.P. An irregular matrix with three overlapping ammonite specimens, likely Ludwigia or Pseudographoceras. 265 grams, 99.6

Jun 06, 2026

Fossil Isle of Skye Ammonites

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Large Madagascan Natural Unpolished Fossil Tree Trunk Slice: Triassic Period, 251-199 million years B.P. A thick slice of agatised wood showing dark brown and reddish brown colours, with some bark detailing on the outside. 2.36 kg, 30.5 cm (12 in.). [No Reserve

Jun 06, 2026

Large Madagascan Natural Unpolished Fossil Tree Trunk Slice

Est. £80-£100

£5

TimeLine Auctions Ltd.Harwich, Essex

Group of Three Otodus Fossil Shark's Teeth on Rock: Eocene Period, circa 56-33 million years B.P. Comprising three Otodus obliquus teeth set on individual sandstone matrices. 658 grams total, 78-82 mm (3 - 3 1/8 in.). [3, No Reserve] From a Cambridgesh

Jun 06, 2026

Group of Three Otodus Fossil Shark's Teeth on Rock

Est. £20-£30

£5

TimeLine Auctions Ltd.Harwich, Essex

Large Slab with Fossil Shells: Miocene Period, 23-5.3 million years B.P. A sizeable matrix containing a large number of fossilised shells. 5.8 kg, 34.5 cm (13 5/8 in.). [No Reserve] From a Cambridgeshire, UK, collection. TimeLine A

Jun 06, 2026

Large Slab with Fossil Shells

Est. £60-£80

£5

TimeLine Auctions Ltd.Harwich, Essex

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24

Fossils Auctions

Signed Handel Triple Scrolled Case Base & Geometric Leaded Glass Shade

Designer 18k White Gold & 2 Carat Diamond Earrings

Syd Solomon (American, 1917-2004) Original Abstract Oil and Acrylic on Canvas 'Dawnote'

May Estate & Jewelry Auction

Heritage Gallery Auctions

Starts on:

Patchogue, NY, US

MUSHROOM RHYOLITE CABOCHON ROCK STONE LAPIDARY SPECIMEN

ROCK STONE LAPIDARY SPECIMEN

MIXED LOT ROCK STONE LAPIDARY SPECIMEN

NATURAL HISTORY ROCKS ANTIQUE GEMS

Col. Christie Hatman Auctioneers

Starts on:

Thayer, MO, US

2 days Left

Costa Rica Head Vessel, Feline & Reclining Deity

Jalisco Red-Slip Hunchback Figure - Conical Headdress

Mississippian Cat Serpent Effigy Bowl (Mythic Water Being)

ARTEMIS x ARTE Pre-Columbian, Native American

Artemis Fine Arts

Starts on:

Louisville, CO, US

3 hrs Left

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