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Manuel Quiring

Rare Arcestes sundaicum Cluster with Exceptional Preservation – Upper Triassic, Timor

Rare Arcestes sundaicum cluster from the Upper Triassic (Norian), Bobonaro Scaly Clay, Noe Bihati, Timor, Indonesia. This exceptional specimen shows a striking natural arrangement of spines radiating from the central test, creating an elegant floral-like formation.

The sea urchin is preserved in remarkable three-dimensional detail, with its crown of spines still attached—an extremely rare occurrence in the fossil record. The surrounding matrix adds further scientific and aesthetic interest, containing remains of other marine organisms that testify to the richness of the ancient ecosystem.

Dimensions: 6 × 3.5 cm (sea urchin body without matrix)

A unique and highly decorative fossil, combining paleontological significance with natural beauty—an outstanding centerpiece for any serious fossil collection.

Triassic, Upper (237 - 201.3 million years) - Indonesia

Sea Urchin - Fossil skeleton - Arcestes sundaicum - 13.5 cm - 8 cm

Fossils

Reserve price

No reserve price

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Closing date

tomorrow

27 March

Tuesday

Sunday

28 March

Thursday

Wednesday

Monday

Budget

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Location

The Netherlands

Italy

France

Spain

Lithuania

Germany

United States

Hong Kong

Taiwan

Belgium

Sweden

Poland

Austria

United Kingdom

Romania

Türkiye

Czech Republic

Denmark

Greece

Portugal

Singapore

Dimensions

Height

Width

Depth

Object

Fossil tooth

Fossilised animal

Amber

Fossil teeth

Fossil skeleton

Raw mineral

Fossil matrix

Fossil fragment

Fossilised shell

Fossilised plant

Fossilised claw

Fossilised jaw

Carved mineral

Fossil bone

Ring

Fossil plate matrix

Fossil skull

Fossil carapace

Earrings

Fossil molar

Fossil cabochon

Fossil mortality plate

Fossil vertebra bone

Metaphysical stones

Necklace

Country of origin

Morocco

Madagascar

Indonesia

North America

China

Brazil

Netherlands

Asia

Lebanon

Canada

Russia

Baltic states

Myanmar

Algeria

Japan

Uruguay

Europe

Material

Silver

Gender

Women

Unisex

Condition

Natural

Restored

Enhanced

As new - unused

Reassembled

Composed

Manipulated

Good condition

Reconstructed

Excellent condition - barely used with minimal signs of wear

Hand carved

Good condition - used with small signs of aging & blemishes

Fair condition

Period

Cretaceous (145 - 66 million years)

Neogene, Miocene (23.03 - 5.33 million years)

Cretaceous, Upper (100.5 - 66 million years)

Paleogene, Eocene (56 - 33.9 million years)

Cretaceous, Lower (145 - 100.5 million years)

Neogene (23.03 - 2.58 million years)

Quaternary, Pleistocene (2.58 - 0.0117 million years)

Devonian (419.2 - 358.9 million years)

Triassic (251.9 - 201.3 million years)

Jurassic (201.3 - 145 million years)

Devonian, Middle (393.3 - 382.7 million years)

Jurassic, Upper (163.5 - 145 million years)

Jurassic, Lower (201.3 - 174.1 million years)

Carboniferous, Pennsylvanian (323.2 - 298.9 million years)

Triassic, Middle (247.2 - 237 million years)

Ordovician (485.4 - 443.8 million years)

Jurassic, Middle (174.1 - 163.5 million years)

Devonian, Lower (419.2 - 393.3 million years)

Carboniferous (358.9 - 298.9 million years)

Triassic, Lower (251.9 - 247.2 million years)

Paleogene (66 - 23.03 million years)

Cambrian (541 - 485.4 million years)

Paleogene, Paleocene (66 - 56 million years)

Ordovician, Middle (470 - 458.4 million years)

Mesozoic (251.9 - 66 million years)

Stone

Coral

Natural Pearl

Pearl

Blood Coral

Topaz

Lapis lazuli

Quartz

Amethyst

Turquoise

Opal

Certification

No laboratory report

Style

Paleolithic

Art Deco

Art Nouveau

Baroque

Round

Cabochon cut

Oval

Faceted cut

Exact colour

White

Mineral

Labradorite

Citrine

Fluorite

Mineral form

Geode

Freeform

Carving

Crystal

After 2000

1900-2000

Before 1400

Treatment

Conserved

Polished

Composite

Size on item

Adjustable

55 (EU) / 15 (IT) / 7 ¼ (US)

Large (18 - 18.5 cm)

59 (EU) / 19 (IT) / 8 ¾ (US)

56 (EU) / 16 (IT) / 7 ½ (US)

Large (19 cm)

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

52 (EU) / 12 (IT) / 6 (US)

60 (EU) / 20 (IT) / 9 (US)

Pearl surface quality

Fossils

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Sea Urchin - Fossil skeleton - Arcestes sundaicum - 13.5 cm - 8 cm

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