Heliolites interstincta Linnaeus with Syringopora bifurcata Lonsdale.
Two colonial corals growing next to each other .The Syringopora appears to be overgrowing the Heliolites somewhat. Interesting.
Silurian, Wenlock Series.
May Hill, Forest of Dean, Gloucestershire.
Specimen : 13 x 10 x 7 cm.
