Fossil Plant | Annularia sphenophylloides | Spain florescent Calamites grew along rivers and

Calamites grew along rivers and wetlands

This has been backed up by examination of coprolites (fossil feces)

are more closely related to living coleoids (i

• Rüdiger Birenheide

Fossil Plant | Annularia sphenophylloides | Spain florescent Calamites grew along rivers andAnnularia sphenophylloides Late Carboniferous (~305 myo) Len Province Spain Plant approx. size: 2. 25" x 2. 25" Matrix approx. size: 11. 75" x 6. 5" x 0. 75" at thickest part. Average thickness approx. 0. 5". Annularia sphenophylloides is the foliage (leaf whorls) of the extinct Calamites, an arborescent (tree like) horsetail that flourished in Carboniferous coal swamps. The plant bore leaves in distinct whorls around the stem nodes. In A.