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The finest objects brought to you by {name}

Manuel Quiring

Plate with two well preserved Bolboporites sp. (Pander, 1830). They are rare and enigmatic Ordovician cone-shaped fossil, the precise nature and systematic affinities of which have been controversial. Bolboporites are interpreted as eocrinoidea, pelmatozoa or blastozoa or as isolated spine or tuberculated plate of an unknown echinoderm.

Age: Middle Ordovician, Volkhov horizon
Locality: Russia, St. Petersburg, Babino quarry
Matrix size: 81 x 64 x 28mm
Bolboporites size: 14x8mm & 6x6mm
Weight: 155 g 

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Fossil plate matrix

Rare conical echinoderms - Fossil plate matrix - Bolboporites sp.

Fossils

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No reserve price

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Closing date

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Wednesday

tomorrow

Sunday

Monday

10 April

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Location

The Netherlands

Italy

Spain

France

Germany

Lithuania

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Taiwan

Hong Kong

Belgium

Poland

Sweden

Türkiye

Austria

Bulgaria

Denmark

Czech Republic

United Kingdom

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Portugal

Dimensions

Height

Width

Depth

Object

Fossil tooth

Fossilised animal

Amber

Fossil teeth

Fossilised shell

Fossil matrix

Fossil skull

Fossil skeleton

Raw mineral

Fossil bone

Taxidermy replica mount

Fossil carapace

Fossil fragment

Fossilised plant

Fossilised jaw

Ring

Fossil vertebra bone

Fossilised claw

Necklace

Carved mineral

Earrings

Fossilised egg

Fossilised tusk

Bracelet

Country of origin

Morocco

Madagascar

Indonesia

North America

Netherlands

Asia

China

Brazil

Myanmar

Russia

Algeria

U.S.

Baltic states

Lebanon

Turkey

Africa

Afghanistan

Material

Silver

Gold-plated

Marble

Bronze

Gender

Women

Unisex

Condition

Natural

Restored

Enhanced

Good condition

Composed

Reassembled

As new - unused

Manipulated

Reconstructed

Cast

Excellent condition

Excellent condition - barely used with minimal signs of wear

Good condition - used with small signs of aging & blemishes

Fair condition

Period

Cretaceous (145 - 66 million years)

Cretaceous, Upper (100.5 - 66 million years)

Neogene, Miocene (23.03 - 5.33 million years)

Cretaceous, Lower (145 - 100.5 million years)

Devonian (419.2 - 358.9 million years)

Paleogene, Eocene (56 - 33.9 million years)

Quaternary, Pleistocene (2.58 - 0.0117 million years)

Triassic (251.9 - 201.3 million years)

Neogene (23.03 - 2.58 million years)

Jurassic, Lower (201.3 - 174.1 million years)

Jurassic (201.3 - 145 million years)

Devonian, Middle (393.3 - 382.7 million years)

Ordovician (485.4 - 443.8 million years)

Jurassic, Upper (163.5 - 145 million years)

Triassic, Middle (247.2 - 237 million years)

Paleogene, Oligocene (33.9 - 23.03 million years)

Carboniferous, Pennsylvanian (323.2 - 298.9 million years)

Paleozoic (541 - 251.9 million years)

Cambrian (541 - 485.4 million years)

Jurassic, Middle (174.1 - 163.5 million years)

Devonian, Lower (419.2 - 393.3 million years)

Ordovician, Middle (470 - 458.4 million years)

Cambrian, Terreneuvian (541 - 521 million years)

Quaternary (2.58 - 0 million years)

Carboniferous (358.9 - 298.9 million years)

Stone

Coral

Blood Coral

Lapis lazuli

Pearl

Natural Pearl

Turquoise

Rhodolite

Akoya cultured pearl

Sapphire

Amethyst

Aquamarine

Certification

No laboratory report

Non-CITES species

Style

Art Deco

Vintage

Signature

Not signed

Faceted cut

Round

Circle

Baroque

Exact colour

White

Mineral

Citrine

Labradorite

Quartz

Mineral form

Geode

Freeform

After 2000

Before 1400

1900-2000

Treatment

Conserved

Polished

Composite

Size on item

Adjustable

57 (EU) / 17 (IT) / 8 (US)

Large (18 - 18.5 cm)

53 (EU) / 13 (IT) / 6 ¼ (US)

56 (EU) / 16 (IT) / 7 ½ (US)

58 (EU) / 18 (IT) / 8 ¼ (US)

Pearl surface quality

Lightly spotted

Clean

Pearl luster

Fossils

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Rare conical echinoderms - Fossil plate matrix - Bolboporites sp.

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