|
Date: |
|
Description: | Specimen of a fossil crinoid (sea lily), Marsupites sp., collected from the Marsupites Zone, Chalk Formation of Late Cretaceous, Senonian (?), Santonian (?) age.
This crinoid calyx (sea lily cup) is made up of three rows of five-sided plates which are made of the mineral calcite. Unlike most fossil crinoids, it did not have a stem fixing it to the sea floor. Like most present day crinoids it simply rested on the sea floor. The short, slender branching arms that it used to collect its food particles from the sea water are rarely found as fossils. The crinoid lived in quiet, shallow waters.
It is from the Cretaceous period (144 - 65 million years ago) | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Crinoidea Classification: Animalia Echinodermata Invertebrata | Temporal: | Cretaceous period (144 - 65 million years ago) | Source: | Tyne & Wear Archives & Museums | Identifier: | http://www.twmuseums.org.uk/geofinder/se... | Go to resource |
|
More Like this...
-
Crinoid
This crinoid calyx (sea lily…
-
-
-
-
-
-
-
-
-
|