|
Date: |
|
Description: | Crinoids (sea-lilies) are animals with a skeleton made up of hundreds of pieces of calcite (calcium carbonate). The photograph shows the specimen upside down. At the top of the block, part of the stem is visible and is made of circular rings of calcite. Only the top few rings are shown but in life, the stem would have been much longer, attaching the crinoid to the seabed. You can trace the rings of the stem down to a bowl-shaped structure called a calyx. Beneath the calyx, a series of at least five arms can be seen and these were used to catch small food particles from the sea water. | License: | http://www.imagine.org.uk/about/copyright/ | Rights holder: | Tyne & Wear Museums | Subjects: | fossils natural world | Source: | Tyne and Wear Imagine | Identifier: | http://www.imagine.org.uk/details/index.... | Go to resource |
|
More Like this...
-
-
Crinoid
This is an almost complete…
-
Crinoid
This crinoid calyx (sea lily…
-
-
-
Crinoid
This bud-shaped fossil is a…
-
-
Crinoid
This specimen is the crown…
-
Crinoid
The underside of a Sagenocrinites…
-
Crinoid
This specimen shows the three…
|