fossil
branching coral
Cladopora & Syringopora
The tell
Branching tubes that fork, often lying in a tangle. Crinoid stems are straight and made of stacked discs; these are hollow tubes.
Cladopora and Syringopora. "Organ pipe coral" is the nickname, and when you see one in cross-section you will understand why.
What it gets mistaken for
- crinoid
- bryozoan
- chain coral
- roots
- twigs
The facts
- also calledCladopora & Syringopora
- age~380 million yrs
- where it turns upHuron & the Straits ยท statewide float
- on the chartfossil · 500 stickers ever
Put it on the shelf
Every stone on this chart is drawn and kiss-cut at three inches. The rarer the stone, the fewer exist: only 500 branching coral will ever be printed, then the run is retired.
10% of every order goes to the Roscommon County Animal Shelter.