The Geology of Delaware

Share

First State Geology Newsletter Signup

First State Geology has been the newsletter of DGS for over 25 years.

Click here to signup!

Segmented Worms: Phylum Annelida

Printer-friendlySend by email

Phylum Annelida
Annelids are segmented worms. The remains of the soft-bodied segmented worms are not usually preserved as fossils. Some marine (salt-water) types, however, secrete tubes of calcium carbonate to use both as a home and to provide protection from their enemies. These tubes can be found as isolated specimens or attached to larger shells. Two genera, Serpula and Hamulus, are fairly common in formations near the C&D canal.

Reference(s): 

Unless otherwise noted, photographs and figures are from DGS Special Publication No. 18, by E. M. Lauginiger, 1988.

Photo Gallery
7. Serpula implicata - specimen from the Mount Laurel Formation, also occurs in the Merchantville Formation<br>8. Hamulus sp. - specimen from the Mount Laurel Formation, also occurs in the Merchantville Formation<br>
Serpula implicata - occurs in the Mount Laurel Formation and the Merchantville Formation<br>Hamulus sp. - occurs in the Mount Laurel Formation and the Merchantville Formation<br>
2. Serpula sp.<br>Photograph from Plate VI, DGS Report of Investigations No. 21, by T. E. Pickett, 1972.