![](../../pictures/archives/compress/2014/1335/jpeg/18t.jpg) Members of the Qatar Natural History Group (QNHG) under the guidance of a geologist Jacques LeBlanc exploring fossilised stromatolites (microbial mats) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/30t.jpg) Qatar Natural History Group (QNHG) looking at fossilized dugong bones embedded in desert floor under the guidance of a geologist Jacques LeBlanc in area of coastal sabkha in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/29t.jpg) Qatar Natural History Group (QNHG) exploring fossilized dugong bones embedded in desert floor under the guidance of a geologist Jacques LeBlanc in area of coastal sabkha in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/28t.jpg) Members of the Qatar Natural History Group (QNHG) exploring fossilized dugong bones embedded in desert floor under the guidance of a geologist Jacques LeBlanc in area of coastal sabkha in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/15t.jpg) Members of the Qatar Natural History Group (QNHG) exploring glittering gypsum pavement (selenite) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/21t.jpg) Members of the Qatar Natural History Group (QNHG) exploring area of gypsum crystal pavement (selenite) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/24t.jpg) Members of the Qatar Natural History Group (QNHG) exploring fossilised intertidal stromatolites (microbial mats, laminated sediments) during fossil trip in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/18t.jpg) Pebbles covering lithified sand dune in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/20t.jpg) Pebbles covering layers of lithified sand dune in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/17t.jpg) Lithified (compacted and hardened, turned to stone) sand dune in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1787/jpeg/22t.jpg) Lithified (compacted and hardened, turned to stone) sand dune in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1787/jpeg/23t.jpg) Orange lithified (compacted and hardened, turned to stone) sand dune in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1799/jpeg/07t.jpg) Climbing an orange lithified (hardened) sand dune in area of Jebel Al-Nakhsh in south-western Qatar, April 2, 2016
![](../../pictures/archives/compress/2016/1799/jpeg/08t.jpg) Orange lithified (compacted and hardened, turned to stone) sand dune in area of Jebel Al-Nakhsh in south-western Qatar, April 2, 2016
![](../../pictures/archives/compress/2010/827/jpeg/22t.jpg) Dr. Petersen guiding a tour of a fort at Qal at Ruwayda archeological Site on northwest coast for Qatar Natural History Group. Qatar, February 6, 2010
![](../../pictures/archives/compress/2010/827/jpeg/24t.jpg) Dr. Petersen in an excavated mound guiding a tour of Qal at Ruwayda archeological Site on northwest coast for Qatar Natural History Group. Qatar, February 6, 2010
![](../../pictures/archives/compress/2014/1385/jpeg/16t.jpg) Group of birdwatchers from QNHG (Qatar Natural History Group) looking for a white owl near Green Circles (center-pivot irrigation) in Irkhaya Farms. South-western Qatar, March 29, 2014
![](../../pictures/archives/compress/2015/1683/jpeg/10t.jpg) QNHG (Qatar Natural History Group) exploring compact claystone (Midra Shale) of the Middle Eocene Dammam Formation at fossil site on flanks of Rawdat Al Heshaimiya(?) depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2016/1774/jpeg/03t.jpg) Group of bird watchers from QNHG (Qatar Natural History Group) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
![](../../pictures/archives/compress/2016/1774/jpeg/31t.jpg) Group of bird watchers from QNHG (Qatar Natural History Group) near a pond outside of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
![](../../pictures/archives/compress/2015/1608/jpeg/17t.jpg) Ethiopian hedgehogs rolled into prickly balls in Rawdat Al Faras Research Station (RAFRS, or Qatar University Farm) near Al Zubara Road during a tour with Qatar Natural History Group (QNHG). Qatar, May 29, 2015
![](../../pictures/archives/compress/2015/1608/jpeg/16t.jpg) Ethiopian hedgehog (Paraechinus aethiopicus) rolled into a ball in Rawdat Al Faras Research Station (RAFRS, or Qatar University Farm) near Al Zubara Road during a tour with Qatar Natural History Group (QNHG). Qatar, May 29, 2015
![](../../pictures/archives/compress/2014/1336/jpeg/07t.jpg) Seedling of Fagonia ovalifolia(?) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/01t.jpg) Sand covering chalky limestone in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/09t.jpg) Milkweed Glossonema varians on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1774/jpeg/20t.jpg) People from QNHG (Qatar Natural History Group) taking pictures of a lizard on periphery of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, March 5, 2016
![](../../pictures/archives/compress/2014/1336/jpeg/08t.jpg) Hairy leaves of Astragalus eremophilus(?) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/02t.jpg) Sand covering gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/17t.jpg) Slabs of gypsum crystals (selenite) with sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/11t.jpg) Sand button (creeping thorn rose, Neurada procumbens, local name saadan) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/12t.jpg) Group of birdwatchers from QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/20t.jpg) White flowers of Eremobium aegyptiacum (to the left) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/14t.jpg) Group of birdwatchers from QNHG (Qatar Natural History Group) on a service road near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/14t.jpg) Launaea capitata (local names huwa, hazan) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/18t.jpg) Stork bill (Monsonia nivea, Erodium neveum) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/01t.jpg) Desert rock carved by drifting sand (aeolian abrasion) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/12t.jpg) Compact seedling of desert plant Zygophyllum qatarense among sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/19t.jpg) Stork bill with a flower (Monsonia nivea, Erodium neveum) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/16t.jpg) Leaves of stork bill (Monsonia nivea, Erodium neveum) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/25t.jpg) Hairy leaves of milkvetch Astragalus arpilobus subsp. hauarensis in sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/17t.jpg) Stork bill with seeds (Monsonia nivea, Erodium neveum) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/23t.jpg) Sand button (creeping thorn rose, Neurada procumbens, local name saadan) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/21t.jpg) Hairy leaves of milkvetch Astragalus arpilobus subsp. hauarensis submerged in sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/22t.jpg) Rosette of leaves of stork bill (Monsonia nivea, Erodium neveum) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/10t.jpg) Haloxylon salicornicum (Hammada elegance local names remith, hamd) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/12t.jpg) Seedling of Zygophyllum qatarense (Tetraena qatarense) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/11t.jpg) Birdwatching with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/13t.jpg) Brown lily (Dipcadi erythraeum, local names mesailemo, besailemo) with flower buds on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/15t.jpg) Flower buds of Brown lily (Dipcadi erythraeum, local names mesailemo, besailemo) on sand in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1384/jpeg/13t.jpg) Watching birds with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
![](../../pictures/archives/compress/2012/1024/jpeg/14t.jpg) Jack Russell Terrier dog of Qatar Natural History Group (QNHG) in sands of Harrarah, 40 miles south-west from Doha. Qatar, March 2, 2012
![](../../pictures/archives/compress/2013/1191/jpeg/11t.jpg) Qatar Natural History Group (QNHG) wading near Al Mafjar village, northern area near Ruwais. Qatar, April 12, 2013
![](../../pictures/archives/compress/2016/1788/jpeg/07t.jpg) Sand and rocks in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1788/jpeg/10t.jpg) Sand and sky texture in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1788/jpeg/09t.jpg) Sand and sky ripples in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1787/jpeg/05t.jpg) Sand ripples in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2014/1334/jpeg/16t.jpg) Area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1788/jpeg/02t.jpg) Windblown sand with rocks in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1788/jpeg/05t.jpg) Sand and cloud ripples in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1787/jpeg/12t.jpg) Windblown sand with ripples in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1788/jpeg/03t.jpg) Grass Pennisetum divisum on windblown sand in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2016/1775/jpeg/21t.jpg) Sand covering gypsum crystals (selenite) in area of Jebel Al-Nakhsh (Khashm an Nakhsh) in south-western Qatar, March 11, 2016
![](../../pictures/archives/compress/2016/1837/jpeg/19t.jpg) Bird tracks in windblown sand on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, June 10, 2016
![](../../pictures/archives/compress/2014/1335/jpeg/14t.jpg) Chalky limestone in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/19t.jpg) Stones and pebbles in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1837/jpeg/16t.jpg) Sand mounds with plants of Anabasis setifera on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, June 10, 2016
![](../../pictures/archives/compress/2016/1837/jpeg/11t.jpg) Plant of Anabasis setifera in windblown sand on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, June 10, 2016
![](../../pictures/archives/compress/2016/1837/jpeg/09t.jpg) Plant of Leptadenia pyrotechnica in windblown sand on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, June 10, 2016
![](../../pictures/archives/compress/2015/1683/jpeg/11t.jpg) QNHG (Qatar Natural History Group) exploring fossils of the Middle Eocene Dammam Formation in a site on flanks of Rawdat Al Heshaimiya(?) depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2016/1789/jpeg/06t.jpg) Greater plantain (Plantago boissieri) on windblown sand on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, March 25, 2016
![](../../pictures/archives/compress/2014/1336/jpeg/04t.jpg) Layers of Miocene Dam Formation in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/13t.jpg) Dried stem of Zygophyllum in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/02t.jpg) Marine Miocene Dam Formation in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2015/1683/jpeg/12t.jpg) QNHG (Qatar Natural History Group) looking for fossils in Midra Shale of the Middle Eocene Dammam Formation in a site on flanks of Rawdat Al Heshaimiya(?) depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2014/1335/jpeg/06t.jpg) White gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/09t.jpg) Patterns of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/05t.jpg) Pavement by gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/04t.jpg) Layers of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/03t.jpg) Slab of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/22t.jpg) Seedling of Zygophyllum qatarense plant in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/16t.jpg) Slabs of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1837/jpeg/18t.jpg) Cornulaca monacantha (local names thalj, thallaj) in windblown sand on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, June 10, 2016
![](../../pictures/archives/compress/2016/1775/jpeg/23t.jpg) Arfaj (Rhanterium epapposum) growing on sand covering gypsum crystals (selenite) in area of Jebel Al-Nakhsh (Khashm an Nakhsh) in south-western Qatar, March 11, 2016
![](../../pictures/archives/compress/2016/1837/jpeg/08t.jpg) Cornulaca monacantha (local names thalj, thallaj) on windblown sand on roadside in area of Jebel Al-Nakhsh (Khashm an Nakhsh). South-western Qatar, June 10, 2016
![](../../pictures/archives/compress/2014/1335/jpeg/20t.jpg) Protruding layers of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1334/jpeg/26t.jpg) Succulent twig of Zygophyllum qatarense plant in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/22t.jpg) Texture of protruding gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/10t.jpg) Patterns of layers of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/06t.jpg) Polycarpaea repens on gypsum pavement (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/03t.jpg) Chalky deposits of marine Miocene Dam Formation in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2016/1775/jpeg/24t.jpg) Blooming Arfaj (Rhanterium epapposum) growing on sand covering layers of gypsum crystals (selenite) in area of Jebel Al-Nakhsh (Khashm an Nakhsh) in south-western Qatar, March 11, 2016
![](../../pictures/archives/compress/2015/1683/jpeg/09t.jpg) QNHG (Qatar Natural History Group) exploring fossils in limestone layer (Dukhan Limestone Member) of Dammam Formation in Jaow Al Hamar depression south from Trainah. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2014/1335/jpeg/07t.jpg) Grass growing on layers of gypsum crystals (selenite) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1336/jpeg/05t.jpg) Round chalky deposits of marine Miocene Dam Formation in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2014/1335/jpeg/11t.jpg) Green seedling of desert plant Zygophyllum qatarense in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2015/1683/jpeg/16t.jpg) QNHG (Qatar Natural History Group) gathering in a tea hall in Trainah agricultural settlement. Southern Qatar, November 6, 2015
![](../../pictures/archives/compress/2015/1572/jpeg/10t.jpg) QNHG (Qatar Natural History Group) watching birds on a small peninsula. Ruwais, Northern Qatar, April 3, 2015
![](../../pictures/archives/compress/2014/1334/jpeg/25t.jpg) Tiny flower of lunaria (Savignya parviflora, local name Gilgilan) in area of Jebel Al-Nakhsh in south-western Qatar, February 7, 2014
![](../../pictures/archives/compress/2012/1035/jpeg/06t.jpg) Qatar Natural History Group (QNHG) at Jazirat Umm Tays, barrier island at northern tip of Qatar, east from Ruwais, March 24, 2012
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