Shortcut Navigation:
Lobate Coral

Lobate coral

Lobate coral

  • Exhibition Text

    • Coral is a useful indicator of local past climate. This piece of coral (Porites lobata) is a skeleton built of calcium carbonate extracted from seawater by coral polyps. Coral formed in the winter has a different density than that formed in the summer, creating annual bands. This piece came from a coral that grew from approximately 1740 to 1900. Because coral grows near the ocean surface, the thickness of the layers varies with changes in temperature, salinity, and cloud cover.

      Show more
  • For Educators

    • Topic: Earth Science

      Subtopic: Climate/Climate Change

      Keywords: Salinity, Porites lobata, Climate, Climatology, Ocean temperature

      Audience: General

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am-5:45 pm
except on Thanksgiving and Christmas
Maps and Directions

Enlighten Your Inbox

Stay informed about Museum news and research, events, and more!