seashell

Table of Contents

Introduction References & Edit History Quick Facts & Related Topics

Images & Videos

chambered nautilus shell

Cone shell (Conus textile)

Cowrie (Cypraea)

Florida horse conch

Conus gloriamaris

King helmet shell (Cassis tuberosa)

Discover

Two chicks near an egg with a white background (poultry, chick, chickens, birds).

What Do Eggs Have to Do with Easter?

Hemp (Cannabis sativa).

9 Mind-Altering Plants

Titanic infographic. The 30th anniversary of its discovery is September 1, 2015. SPOTLIGHT VERSION.

Timeline of the Titanic’s Final Hours

African Americans demonstrating for voting rights in front of the White House as police and others watch, March 12, 1965. One sign reads, "We demand the right to vote everywhere." Voting Rights Act, civil rights.

Timeline of the American Civil Rights Movement

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Ahura Mazda - relief of the Zoroastrian god Ahura Mazda at the ancient ruins of Persepolis in Iran. Also known as Ormazd Zoroastrianism,

Which Religion Is the Oldest?

Close up of books. Stack of books, pile of books, literature, reading. Homepage 2010, arts and entertainment, history and society

12 Novels Considered the “Greatest Book Ever Written”

seashell: Facts & Related Content

Written and fact-checked by The Information Architects of Encyclopaedia Britannica

Facts

Also Known As	sea shell

Photos and Videos

chambered nautilus shell

Cone shell (Conus textile)

Cowrie (Cypraea)

Florida horse conch

Conus gloriamaris

King helmet shell (Cassis tuberosa)

Discover how calcium and carbonate dissolved in seawater serve as the building material for seashell construction

See All Videos and Images →

Topics

aperture epibyssate shell siphuncle conchin endobyssate shell whorl periostracum columella shell collecting conchology What Are Turtle Shells Made Of?

Quiz

Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.

Characteristics of the Human Body