 Sea urchins in the Red Sea near Eilat hotels. The Middle East, April 13, 2002
 Serrated edge of the elytra of urchin beetle (Pionotheca coronata) taken from sandy area near Mesaieed, near Sealine Beach Resort. Qatar, July 10, 2015
 Sand dollar (Keyhole Urchin, Mellita quinquiesperforata) on eastern Bailey s Beach (Reject s Beach) in Newport. Rhode Island, March 15, 2003.
 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
 Front view of urchin beetle (Pionotheca coronata) taken from sandy area near Mesaieed, near Sealine Beach Resort. Qatar, July 10, 2015
 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
 Urchin beetle (Pionotheca coronata) taken from sandy area near Mesaieed, near Sealine Beach Resort. Qatar, July 10, 2015
 Urchin earthfan mushrooms (Thelephora penicillata) near Kuzmolovo, north from Saint Petersburg. Russia, September 3, 2017
 Urchin earthfan fungus (Thelephora penicillata) in Alexander Park. Pushkin (former Tsarskoe Selo) near Saint Petersburg, Russia, September 4, 2017
 Urchin earthfan mushrooms (Thelephora penicillata) on the ground in Aleksandrovsky (Alexander) Park of Pushkin (former Tsarskoe Selo), a suburb of Saint Petersburg. Russia, September 25, 2017
 Urchin earthfan fungus (Thelephora penicillata) on the ground in Aleksandrovsky (Alexander) Park of Pushkin (former Tsarskoe Selo), a suburb of Saint Petersburg. Russia, September 25, 2017
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