RMCNYTGF–calcareous grasslands on spouth exposed slopes of Kyffhaeuer mountain, Germany, Thuringia, Kyffhaeuser, Steinthaleben
RM2DF7872–Fossil foraminifera (Nummulites sp. ) in calcareous rock (limestone). Sample.
RMENF9TT–Calcispongiae (Calcareous sponge), by Ernst Haeckel, 1904 - Editorial use only.
RM2AF25KJ–Mammoth Hot Springs in winter, famous travertine terraces, Calcareous sinter, UNESCO World Heritage, Yellowstone NP, Wyoming, USA.
RMP6TT51–Calcareous skeleton of sea urchin -
RM2BJ35N7–Calcareous stone urn with Chimera. Etruscan culture (3rd-2nd cent. BC) Stone. Catalan coast. Archaeology Museum of Catalonia, Barcelona.
RMP8P1AB–Flowering Pyramidal orchid on calcareous slope
RMBDY0EE–Calcareous tufa spires in Mono Lake, Lee Vining, California, USA
RFEHXW07–Germany, Oberammergau, calcareous grassland with trumpet gentians and creeping buttercups
RMBTECT7–Yellow calcareous sponge off Key Largo coast, Florida, USA
RMBHFBK4–View at waterfall with calcareous sinters, Barranco de los Molinos, Parque Natural de Betancuria, Fuerteventura, Canary Islands,
RMKKREKY–ancient devil's tower at sunrise, Sud Sardinia, Italy. This sighting tower was built in 1639 by the Crown of Spain, and is made of volcanic rock material, andesite and friezes in calcareous sandstone
RFMCACHY–Two species of lichens (white-to-bluish, Acarospora glaucocarpa; black, Staurothele areolata) growing on calcareous sandstone: San Rafael Swell, Utah
RFFC2JEE–The calcareous tufa formation
RFKJN5BX–Fly Orchid 'Ophrys insectifera' grows on calcareous soil,flowers May and June,orchid, vulnerable,Somerset, UK,
RMB56J71–Dropwort Filipendula vulgaris widespread plant of calcareous grassland Also grown in gardens
RFRR6HD1–Mussel shell with natural calcareous tubes made by marine worms, like Pomatoceros species. Found on beach.
RMCNYPBY–facing south slope with calcareous soil of Kyffhaeuser, Germany, Thueringen
RM2DF73F9–Calcareous tubeworm (Serpula vermicularis) fixed on a mussel shell.
RF2ATG844–Winemaker holding piece of calcareous soil from Italian vineyard
RMJ2E1W4–Mammoth Hot Springs in winter, famous travertine terraces, Calcareous sinter, UNESCO World Heritage, Yellowstone NP, Wyoming, USA.
RMP6TRJH–Calcareous skeleton of sea urchin Strongylocentrotus franciscanus
RMFK8Y5P–Brook of calcareous waters which flow into the Cuiaba river in Noble
RMP8P18W–Flowering Military orchid on calcareous slope
RFRTFA9P–Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces
RFGA61KM–Calcareous or alkaline meadow with different types of grasses and flowers, including red clovers. Berner Oberland, Switzerland.
RMT56RPT–Calcareous tubeworm or fan worm showing feathery feeding tentacles in the intertidal zone at Hill Head near Fareham, UK. Marine wildlife.
RFMW9MD5–Kunderberg in South of Holland, reserve with calcareous grassland, famous for its orchids, Limburg, Netherlands.
RF2HBRFCC–Mnium stellare, known as the starry thyme-moss or stellar calcareous moss
RFJCPXY7–Scrub encroachment onto calcareous grassland. Invasion of bushes and coarse vegetation displacing diverse flora of limestone meadow
RFEJCH4G–The calcareous tufa formation
RFKJN5C0–Fly Orchid 'Ophrys insectifera' grows on calcareous soil,flowers May and June,orchid, vulnerable,Somerset, UK,
RMB53XR1–Dropwort Filipendula vulgaris widespread plant of calcareous grassland Also grown in gardens Transilvania Romania
RM2APPFA9–Carline thistle (Carlina vulgaris) growing wild on calcareous grassland in the karst country of the Burren at Parknabinna, County Clare, Ireland
RF2CH74X6–mason inspecting calcareous sandstone wall on construction site
RMJFJC0M–Dawn on the calcareous peaks of Mount Paterno reflected in the still water of Lakes of Piani, Locatelli refuge, Sesto of pusteria, Trentino Alto-Adige, Italy, Europe
RM2DF7449–Datil de mar (Lithodomus lithofagus) is an edible marine mollusk that lives inside calcareous rocks.
RMJ9MRE4–Common spotted orchid (Dactylorhiza fuchsii) growing on calcareous soil.
RM2ABK9PR–Common Pasque Flower ( Pulsatilla vulgaris ) growing on calcareous low-nutrient meadow, wild flower, spring ephemeral, Europe.
RMP6TRWA–Calcareous skeleton of sea urchin Phyllacanthus imperialis
RMFK9J97–Rhodolith - calcareous algae that produce calcium carbonate and jaguareca - ascensionis Holocentrus
RME1RD1G–Flowering Fragrant Orchid on calcareous slope
RFRTFAA3–Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces
RFC5W8N8–Spain, Granada, View of highway passing through calcareous rock
RMT56RR0–Calcareous tubeworm or fan worm showing feathery feeding tentacles in the intertidal zone at Hill Head near Fareham, UK. Marine wildlife.
RMD23Y14–large Calcareous sandstone boulder on a calm beach
RF2BXF549–Mnium stellare, known as the starry thyme-moss or stellar calcareous moss
RMB9JT7B–Calcareous springs in Ragana mire Kemeri National park Latvia
RFCXE4FM–Calcareous formations travertine
RFKJN5C4–Fly Orchid 'Ophrys insectifera' , grows on calcareous soil,flowers May and June,orchid, vulnerable, Wiltshire, UK
RME7Y41C–Worn calcareous rocks and trees frame the bay of Saint Palais France.
RM2APPFD3–Bloody cranesbill (Geranium sanguineum) growing wild on calcareous grassland in the karst country of the Burren at Parknabinna, County Clare, Ireland
RFW3991E–Calcareous tube worm remains from an ancient pot found in the ocean
RF2BBC99X–Calcareous tube worm (Serpula columbiana), Seymour Inlet, BC
RM2DF7431–Datil de mar (Lithodomus lithofagus) is an edible marine mollusk that lives inside calcareous rocks.
RM2H507AG–Magpie inkcap (Coprinopsis picacea), a fungus associated with beech woodland and calcareous soils
RFCXA3M4–calcareous tubeworm, serpulid tubeworm, fanworm, or plume worm (Serpula columbiana) Sea of Japan, East sea
RMP6TT3A–Calcareous skeleton of sea urchin - genus Brissus. Spain. Europe
RMFRAA4R–Backhoe moving calcareous rocks broken by explosives in opencast mine
RME1RD0D–Flowering Fragrant Orchid on calcareous slope
RFRTFA9R–Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces
RFC5W8PC–Spain, Granada, View of highway passing through calcareous rock
RMT56RR1–Calcareous tubeworm or fan worm showing feathery feeding tentacles in the intertidal zone at Hill Head near Fareham, UK. Marine wildlife.
RFRGRTGM–Marsh Helleborine (Epipactis palustris) flowering on a calcareous fen in Western Germany
RF2BXF553–Mnium stellare, known as the starry thyme-moss or stellar calcareous moss
RMB9JRY2–Calcareous springs in Ragana mire Kemeri National park Latvia
RFCXEX3B–Freakish calcareous formations
RFKJN5C9–Fly Orchid 'Ophrys insectifera' grows on calcareous soil, flowers May and June, orchid, vulnerable, Wiltshire, UK,
RME56GN9–Flock of sheep grazing on calcareous grassland of chalk downland on Milk Hill, the Marlborough Downs, Wiltshire, England
RMHH8PWC–Very unusual vertical pipe (water escape) structures formed when phonolitic ignimbrite was deposited on wet calcareous sand at El Medano, Tenerife
RM2D97GR9–Pyrenean kidneyvetch (Anthyllis vulneraria pyrenaica) on dry calcareous lawn, Pyrenees, France
RMDGWMY1–Lizard Orchid, Himantoglossum hircinum in dry calcareous grassland, Dordogne, France.
RM2E0PPGR–Arenaria alfacarensis is a perennial like-moss plant native to calcareous mountains of Jaen and Granada provinces.
RM2H507A8–Magpie inkcap (Coprinopsis picacea), a fungus associated with beech woodland and calcareous soils
RFE7MEDX–calcareous tubeworm, serpulid tubeworm, fanworm, or plume worm (Serpula columbiana) Sea of Japan, East sea
RM2A1563Y–An old scallop shell that has been colonised by tube worms that live inside calcareous tubes. Black background. Dorset England UK GB
RMFRAA56–Workman preparing calcareous rocks to burning oven - municipality of Cacapava do Sul - RS
RMBKPN8E–Calcareous slopes in Zuid-Limburg, the Netherlands
RFRTFAAB–Sinter terraces with calcareous tuff deposits, hot springs, colorful mineral deposits, Palette Springs, Lower Terraces
RFDDJ9DP–Austria, Calcareous grasslands or Violet Fritillary, close up
RMWREHBJ–Partly open, pink, purple forets on flower spike of a pyramidal orchid (Anacamptis pyramidalis) on Hungerford Common, pyramid shape, Berkshire, June
RFRGR6EE–Single flower of Marsh Helleborine (Epipactis palustris) from a calcareous fen in Western Germany