Sea urchins in the Red Sea near Eilat hotels. The Middle East, April 13, 2002
Masses of tiny fossilized echinoderms or sea urchins in Fibularia damensis outcrop in coastal area in south-western Qatar, February 7, 2014
Sea urchin cactus(?) in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, July 5, 2014
Tiny fossilized echinoderms or sea urchins (Fibularia damensis) in coastal area in south-western Qatar, February 7, 2014
Fossilized sea urchin on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013
Close up of tiny fossilized echinoderms or sea urchins Fibularia damensis in coastal area in south-western Qatar, February 7, 2014
Tiny fossilized echinoderm or sea urchin in limestone in coastal area in south-western Qatar, February 7, 2014
Fossil sea urchins (echinoids, echinoderms) taken from desert in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 22, 2013
Two fossil sea urchins (echinoids, echinoderms) taken from desert in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 22, 2013
Fossil sea urchin (echinoid, echinoderm) among flint stones on desert plane in area of dunes near Harrarah, west from Mesayeed, south-west from Doha. Qatar, March 19, 2013