Lot - Rare Complete Monumental Giant Clam Shell

Mollusks - Point Reyes National Seashore (U.S. National Park Service)

Lot - TRIDACNA GIGAS GIANT CLAM SHELL

Giant Clam Shell

Millions of seashells on NC beaches: Collectors controversy

The Search for Intelligent Life Is About to Get a Lot More

A fine and rare monumental natural shell now raised on wrought iron display stand. Size: Shell width 37 overall height 37 x 23depth.

TRIDACNA GIGAS GIANT CLAM SHELL

Mollusks - Point Reyes National Seashore (U.S. National Park Service)

Giant Clams - Amakuma Ryukyu

Extra Large Giant Clam Shell MATCHING PAIR Very Very Rare Unique

Lot - Rare Complete Monumental Giant Clam Shell

Mollusks - Big Thicket National Preserve (U.S. National Park Service)

Rare purple pearl found in Chester County couple's clam dinner

Antique Giant Natural Real Clam Shell 31 Long

Lot 130 - Skulls: Eastern Moa Skull (†Emeus crassus)

A rare, truly giant clam shell, Tridacna Gigas, one of the largest and finest specimens we have ever seen, retaining both halves. Beautifully

Rare Truly Giant Clam Shell, Tridacna Gigas