About the product:

🪨 Fossil Type: Fish on sandstone plate "Knigtia Eocaena" from the Green River Formation (geological formation dating from the Eocene, located along the current course of the Green River in the state of Wyoming, in the United States).

🌍 ⛏️ Origin: Kemmerer - Wyoming - USA

📐 💎 Dimensions: 95 millimeters long x 75 high x 5 thick

⚖️ Weight : 51 grams

✨ Finish: 1 side cleaned / 1 side in rough stone

🔬 Treatment: None

🎁 Comes with a Gem and Zen certificate, ideal for giving as a gift or treating yourself!

📋 Mineralogical sheet:

Property	Details

Scientific name

Knightia eocaena

Geological period

Eocene (~50 million years ago)

Origin / Deposits

Green River Formation, Wyoming, USA

Family

Clupeidae (like modern herring and sardines)

Size	10–15 cm on average, up to 25 cm for the largest specimens

Shape

Fusiform, elongated, adapted to swimming in schools

Scales

Small, arranged in regular rows

Teeth

Small, conical

Fins	Dorsal, pelvic, anal, pectoral

Lifestyle

Gregarious, moving in dense schools

Environment

Eocene freshwater lakes

Discovery

Abundant fossils in the Green River Formation

Scientific significance

Most common fossil species in the region (≈70% of fossil fish found)

Use / Collection

Collection, museums, paleontological study

Status

Wyoming's iconic fossil

Value

Highly prized by collectors and museums

Conservation

Well-preserved specimens, often displayed in display cases