Solitary corals always seem to catch my eye so I was pleased to receive these two specimens from my friend, Jenaro.
Here are a pair of Paracunnolies undulatus from the Cretaceous (Santonian stage) near Santa Maria, Lérida, Spain. These look similar to Microcyclus thedfordensis from the Hungry Hollow member of the Widder formation in Canada.
The other species is Diploctenium falloti from the same locality. It is shaped quite differently than the Paracunnolies above with septae on both sides of a flat, disc shaped body with a groove along the edge.
Thanks to Jenaro for these cool fossils!