Galerie d'images
Toutes les images de la base — taxons, formations et intervalles géologiques.
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4,826 image(s)
Shetwemys, Shell remains of the podocnemidid turtle S. fajumensis (Erymnochelyini). (a–f) AMNH 5087, carapace and partial plastron, in dorsal (a), ventral (b), anterior (c), posterior (d), left lateral (e), and right lateral (f) views. (g–h) SMNS 11233/1, partial carapace, in dorsal (g) and ventral (h) views. Gebel Quatrani Formation, Fayum depression, Egypt, Lower Oligocene (Rupelian)
Kleigroeve in de Formatie van Boom te Kruibeke
Crommium angustatum Grateloup, 1827 fossil snail shell (apical view) from the Oligocene of France. (42 mm across at its widest) Of all the molluscs, the gastropods (snails) have made the most ecological adaptations. They can be found in almost all fundamental environments: marine, freshwater, terrestrial. Most gastropods live in the ocean, and have a single, asymmetrically coiled, external shell of calcium carbonate (CaCO3 - usually aragonite). The hard calcareous shell is the most easily fossilized part of the gastropod. The soft parts of a snail (the “slug” portion) include a well developed head having eyes, tentacles, and a mouth, and a well developed, strong, muscular foot used principally for locomotion. The shell is carried upright on the snail’s back, or is partially dragged behind. When threatened by a predator, many snails can retract their soft parts into the shell’s interior for protection. Many fossil snails in the Paleozoic rock record are often not well preserved, or are preserved as internal molds. The original aragonite of many gastropod shells is not stable on geologic time scales, and often recrystallizes or dissolves completely away. Fossil snail shells in Mesozoic and Cenozoic rocks are usually better preserved. Classification: Animalia, Mollusca, Gastropoda, Naticoidea, Ampullinidae Age: Rupelian Stage (Stampian Stage), Lower Oligocene Locality: Gaas, Landes Department, Aquitaine, southwestern France
Crommium angustatum Grateloup, 1827 fossil snail shell (apical view) from the Oligocene of France. (42 mm across at its widest) Of all the molluscs, the gastropods (snails) have made the most ecological adaptations. They can be found in almost all fundamental environments: marine, freshwater, terrestrial. Most gastropods live in the ocean, and have a single, asymmetrically coiled, external shell of calcium carbonate (CaCO3 - usually aragonite). The hard calcareous shell is the most easily fossilized part of the gastropod. The soft parts of a snail (the “slug” portion) include a well developed head having eyes, tentacles, and a mouth, and a well developed, strong, muscular foot used principally for locomotion. The shell is carried upright on the snail’s back, or is partially dragged behind. When threatened by a predator, many snails can retract their soft parts into the shell’s interior for protection. Many fossil snails in the Paleozoic rock record are often not well preserved, or are preserved as internal molds. The original aragonite of many gastropod shells is not stable on geologic time scales, and often recrystallizes or dissolves completely away. Fossil snail shells in Mesozoic and Cenozoic rocks are usually better preserved. Classification: Animalia, Mollusca, Gastropoda, Naticoidea, Ampullinidae Age: Rupelian Stage (Stampian Stage), Lower Oligocene Locality: Gaas, Landes Department, Aquitaine, southwestern France
Crommium angustatum Grateloup, 1827 fossil snail shell (abapertural view) from the Oligocene of France. (57 mm tall) Of all the molluscs, the gastropods (snails) have made the most ecological adaptations. They can be found in almost all fundamental environments: marine, freshwater, terrestrial. Most gastropods live in the ocean, and have a single, asymmetrically coiled, external shell of calcium carbonate (CaCO3 - usually aragonite). The hard calcareous shell is the most easily fossilized part of the gastropod. The soft parts of a snail (the “slug” portion) include a well developed head having eyes, tentacles, and a mouth, and a well developed, strong, muscular foot used principally for locomotion. The shell is carried upright on the snail’s back, or is partially dragged behind. When threatened by a predator, many snails can retract their soft parts into the shell’s interior for protection. Many fossil snails in the Paleozoic rock record are often not well preserved, or are preserved as internal molds. The original aragonite of many gastropod shells is not stable on geologic time scales, and often recrystallizes or dissolves completely away. Fossil snail shells in Mesozoic and Cenozoic rocks are usually better preserved. Classification: Animalia, Mollusca, Gastropoda, Naticoidea, Ampullinidae Age: Rupelian Stage (Stampian Stage), Lower Oligocene Locality: Gaas, Landes Department, Aquitaine, southwestern France
Close up of the Eulithomyrmex rugosus holotype head. Museum of Comparative Zoology specimen UCM17019. Priabonian; Florissant Formation, Colorado, USA
Amaltheenton, Bachriss des Pliensbach bei Zell unter Aichelberg
Pleuroceras spinatum (Bruguière 1789)- Amaltheidae; Pyritic specimen. biozone index to the end of Pliensbachian. Stage : Pliensbachian from 189,6 ± 1,5 Ma to -183,0 ± 1,5 Ma (million years ago) (Domerian) Locality: Lanuéjols, Gard, France Size : 4.5x3.8x1.45 cm 30.6g
Permineralized Jurassic fern rhizome from Korsaröd (Sweden) of Osmundastrum pulchellum. It has preserved Nuclei and Chromosomes, a fine subcellular detail has rarely been documented in fossils. It´s Rooted in DNA content was used to extrapolate relative genome, finding relationships with extant Osmundastrum cinnamomeum, and confirmed a monophyletic Osmunda. Osmundastrum pulchellum is one of the earliest fossil Osmundastrum rhizomes known so far, and the first of its kind from the Mesozoic of Europe. Its impressive preservation has lead to know even the biotic interactions with the Plant. It also has recovered the only know case know to preserve the ongoing mitosis processes in plant cells via calcification from volcanic hydrothermal brine.
Early Jurassic (Lias γ, Pliensbachian) ferruginous limestone (the bed below the hammer) and marl (the bed ‘behind’ the hammer) in the cap rocks of the oolithic iron ore deposit at the village of Rottorf am Klei, Lower Saxony, Germany, largely obscured by weathered material of the same rocks.
Arminisaurus schuberti (NAMU ES/jl 36052), a plesiosaurian from the Pliensbachian of Bielefeld (Germany). Right scapula in medial view.
Arminisaurus schuberti (NAMU ES/jl 36052), a plesiosaurian from the Pliensbachian of Bielefeld (Germany). Rear part of right lower jaw ramus in side view.
Outline of history by H. G. Wells Publication date 1920 Topics Archeological Survey, World history, Ancient civilization, World politics Collection digitallibraryindia; JaiGyan Language English Book from the Archaeological Survey of India Central Archaeological Library, New Delhi Book Number: 9651 Book Title: Outline of history Book Author: H. G. Wells Book Language: English Number of Pages: 1252 Publisher: Cassell; London; 1920 Subject: World history; Ancient civilization; World politics Source URL: http://asi.nic.in/asi_books/9651.pdf Year: 1920 Addeddate 2017-11-05 18:34:50 Identifier in.gov.ignca.9651 Identifier-ark ark:/13960/t1qg51s3g Ocr ABBYY FineReader 11.0 (Extended OCR) Ppi 600 Scanner Internet Archive Python library 1.7.3
Iconofósseis
Granite of Devonian/Carboniferous age from the Stubai Alps. This rock is on display at the geological public collection of the Alpines Museum in Munich.
Grænsen mellem de Sen-Ordoviciske Jerrestad Fm øverst og Dicellograptus-skifer nederst markeret ved de tynde gule lag ca. en trediedel fra toppen; Læså ved Vasegaard.
Upper Jurassic (Oxfordian) sedimentary rock layers at the base of a cliff at low tide at Filey Brigg in North Yorkshire, England.
The Géoscope at the motorway service station, La Lozère, displays a collection of rocks found in Lozère. Each has a description. Limestone (beige) Oxfordian Provenance:La Canourgue, Lozère
Відслонення вапняків понтійського ярусу неогену. Схил узбережжя Чорного моря в районі 16 станції Великого фонтану. Одеса, Україна
New species of Mesozoic benthic foraminifera from the former British Petroleum micropalaeontology collection, Ophthalmidium dracomaris n. sp. (1) holotype (NHMUK PM PF 74496); (2–5) paratypes (NHMUK PM PF 74497–74500). (8–9) Eobigenerina calloviensis n. sp.: (8) holotype (NHMUK PM PF 74504); (9) paratype (NHMUK PM PF 74505). (10–12) Trochammina fordonensis n. sp.: (10) holotype (NHMUK PM PF 74501); (11–12) paratype (NHMUK PM PF 74502–74503). (13–15) Arenoturrispirillina swiecickii n. sp.: (13) holotype (NHMUK PM PF 74506); (14–15) paratype (NHMUK PM PF 74507 + NHMUK PM PF 74552). (16–17) Ataxophragmium mariae n. sp.: (16) holotype (NHMUK PM PF 74553); (17) paratype (NHMUK PM PF 74554).
Barriolucio (España). Accesos a la localidad.
Jurassic Forest, Cathedral of Ferns - Blue Mountains, New South Wales.
A life reconstruction of the middle Jurassic sauropod, Spinophorosaurus nigerensis, from the nigerian Irhazer Shale.
HKU zh:香港大學 Stephen Hui Geological Museum zh:許士芬地質博物館 Mesozoic 中生代 rocks Oct 2016
locuri preistorice din satul cobilea provin din erele paleozoica si mezoica si cenozoic
Graph of relative Dinosaur fossil populations from each period of geologic time in the Mesozoic, ordered by major clade
1 Quality Square, Ludlow
1 Dinham, Ludlow
1 - 5 Upper Linney
1 - 5 Castle Street
1 - 2 Broad Street
1 - 13 Temeside
'The Kitchen Door' in Quality Square, Ludlow
"The Vaults"
Pseudocidaris mammosa Stage : Kimmeridgian 157.3 ± 1.0 Ma and 152.1 ± 0.9. (million years ago)
Etage: Kimméridgien, Sous-étage: inférieur, Zone: Rasenia cymodoce, Sous-zone: Lithacosphinctes achilles, Horizon: Lithacosphinctes achilles. -150.8 à –155.7 millions d'années.
Fig 2. Geological section of the “Mittlerer Kimmeridge”. This figure is based on Fischer and modified from Lallensack et al. Beds yielding terrestrial fossils are listed.
Steinbruch Langenberg. Steilgestellte Schichten des Jura.
Formation d'âge Kimmeridgien (jaune orangé) et Tithonien (Barre tithonique, en gris sur la photo). On peut remarquer que les strates ont été plissées. L'âge des mouvements tectoniques ayant déformé la structure est donc plus jeune que le Tithonien.
The GSSP for the Hirnantian stage in the ICS geological timescale (uppermost Ordovician stage), located in the Wangjiawan profile (an outcrop of black shale, brownishly weathered siliceous shale and chert layers of the Wufeng Formation) along the G241 road, about 40 km north of Yichang, Hubei, China. An exact golden spike is missing in the profile (2025) but a memorial plague marks the place. The GSSP occurs at the first appearance of fossils of the graptolite species Normalograptus extraordinarius. It was ratified in 2006.
Eleniceras cf. curvicostatum (Tzankov), Lower Hauterivian, Kalotina, Bulgaria Cr1 963X1 at the Sofia University 'St. Kliment Ohriski' Museum of Paleontology and Historical Geology
Eleniceras aff. stevrecensis Breskovski, Lower Hauterivian, Dragoman, Bulgaria, Cr1 959 - Cr1 960 X 1 at the Sofia University 'St. Kliment Ohridski' Museum of Paleontology and Historical Geology
DUVALIA POLYGONALIS (BLAINVILLE) HAUTERIVIAN TEKE DERE SHUMEN SOFIA UNIVERSITY 'ST. KLIMENT OHRIDSKI' MUSEUM OF PALEONTOLOGY AND HISTORICAL GEOLOGY
Distoloceras belimelensis sp.n. Lower Hauterivian, Belimel, Montana Province, Cr1 970X1 (Coll. G. Mandov) at the Sofia University 'St. Kliment Ohridski' Museum of Paleontology and Historical Geology
Crioceratites (C.) villiersianum bituberculatum (Sarkar) Hauterivian, Belimel, Cr1 929X1 at the Sofia University 'St. Kliment Ohridski' Museum of Paleontology and Historical Geology