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Showing results for tags 'jurassic'.
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From the album: Invertebrates
Insect non det. Middle Jurassic Jiulongshan Formation Chifeng Province Nei Mongol PR China -
From the album: Ammonites of Southern Spain and world
Parkinsonia (Gonolkites) convergens Upper Bajocian (Parkinsoni Zone) Sengenthal, Bavaria (Germany) 160 mm -
Taxonomy according to Pazinato et al., 2020. Restoration from Pazinato et al., 2020, p. 10: Identified by oilshale. References: Charbonnier S. & Garassino A. 2012. — The marine arthropods from the Solnhofen Lithographic Limestones (Late Jurassic, Germany) in the collections of the Muséum national d’Histoire naturelle, Paris. Geodiversitas 34 (4): 857-871. http://dx.doi.org/10.5252/g2012n4a8 Pazinato, P. G., Jauvion, C., Schweigert, G., Haug, J. T., & Haug, C. 2020: After 100 years: a detailed view of an eumalacostracan crustacean from the Upper Jurassic Solnhofen Lagerstätte with raptorial appendages unique to Euarthropoda. Lethaia, https://doi.org/10.1111/let.12382.
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- francocaris
- solnhofen
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From the album: Ammonites of Southern Spain and world
Substreblites zonarius (ventral view) -
From the album: Ammonites of Southern Spain and world
Leptaleoceras accuratum with a ventral bite mark Middle Domerian (Algovianum Zone, Accuratum Subzone) Betic Range (Spain) 47 mm -
From the album: Vertebrates
'Furo' angustus (MÜNSTER, 1842) Late Jurassic Tithonian Zandt Bavaria Germany Length: 12cm P. Lambers (1998): THE GENUS FURO (PISCES HALECOMORPHI) FROM THE UPPER JURASSIC PLATTENKALKE OF GERMANY. ORYCTOS, Vol. 1 :23-35-
- jurassic
- lithographic limestone
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From the album: Vertebrates
Leptolepides haertesi ARRATIA, 1997 Late Jurassic Tithonian Zandt Germany Length: 9cm-
- leptolepides
- lithographic limestone
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Reference: Günter Schweigert (2002) Zwei neue Garnelen (Decapoda: Dendrobranchiata, Eukyphida) aus oberjurassischen Plattenkalken Süddeutschlands. Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie) Nr 323, pp 1-11
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- wintershof
- solnhofen
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A juvenile. Adults can get up to 20cm. References: Arratia, GF, "Anaethalion and similar teleosts (Actinopterygii, Pisces) from the Late Jurassic (Tithonian) of southern Germany and their relationships", Palaeontographica Abteilung A Palaeozoologie-Stratigraphie, vol. 200, issue 1-3, pp. 1–44
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- tithonian
- anaethalion
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Sinosura kelheimense (BOEHM, 1889) might be a junior synonym of Geocoma carinata (v. MUENSTER in GOLDFUSS, 1833)
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- kimmeridgian
- hienheim
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From the album: Vertebrates
Anaethalion angustus MÜNSTER, 1832 Late Jurassic Tithonian Solnhofen Germany Length: 4cm-
- anaethalion
- solnhofen
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Geocoma carinata (v. Münster in Goldfuss, 1833)
oilshale posted a gallery image in Member Collections
From the album: Invertebrates
Geocoma carinata (v. Münster in Goldfuss, 1833) Upper Jurassic Tithonian (Malm zeta) Zandt Germany Diameter 8cm / 3 inch-
- geocoma
- brittle star
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From the album: Invertebrates
Saccocoma tenella GOLDFUSS, 1831 Upper Jurassic Tithonian Solnhofen Germany A floating crinoid -
My specimens of this species are 2-3mm in diameter, and the thickness in the center is about 2/3 of the diameter. Thickness on the edge goes down to about 0.1mm. .
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- jurassic
- cretaceous
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Taxonomy from Maxwell et al. 2020. Identified by oilshale. References: Agassiz L. (1843) Recherches Sur Les Poissons Fossiles. Tome I (livr. 18). Imprimerie de Petitpierre, Neuchatel xxxii-188. Maxwell, E.E., Lambers, P.H., López-Arbarello, A., and Schweigert G. (2020) Re-evaluation of pachycormid fishes from the Late Jurassic of Southwestern Germany. Acta Palaeontologica Polonica 65 (3): 429–453.
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Taxonomy from GBIF.org. Diagnosis (from Arratia 1997): "Small, elongated teleost with a known maximum length of 65 mm. Head length 23–27% of standard length. Ethmoidal region about 24% of head length. With middle pit-line groove running onto pterotic. Two supraorbital bones, the first one expanded anteroventrally. Preopercular limbs form an angle of 90°. Quadrate-mandibular articulation placed below center of orbit. Dorsal fin origin anterior to pelvic fin origin. Origin of dorsal fin at 54–63% of standard length. Origin of anal fin at 84–88 % of standard length. With 45 or 46 vertebrae. Pectoral fin rays 15–19, pelvic fin rays 10–11, dorsal fin rays 15–16, anal fin rays 9. Complex epipleural bones bearing two or three thin projections about midlength of vertebral column." Leptolepides haerteisi A GG21.193 from Zandt, line drawing of the head (from Konwert 2016, p. 58): Identified by oilshale. References: Arratia G. (1997) Basal teleosts and teleostean phylogeny. Palaeo Ichthyologica, Volume 7, 168 pp. Konwert, Martin (2016): First record of Leptolepides haerteisi (Teleostei, Orthogonikleithridae) from the Upper Jurassic Plattenkalks of chamhaupten (Bavaria, Germany) Archaeopteryx 33: 54-61, Eichstätt 2016
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- zandt
- leptolepides
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References: C. Haug, D. E. G. Briggs, D. G. Mikulic, J. Kluessendorf, and J. T. Haug (2014). The implications of a Silurian and other thylacocephalan crustaceans for the functional morphology and systematic affinities of the group. BMC Evolutionary Biology 14(159):1-15 [M. Clapham/M. Clapham] H. Polz (1989). Clausocaris nom. nov. pro Clausia Oppenheim 1888. Archaeopteryx 7:73 H. Polz (1993). Zur Metamerie von Clausocaris lithographica (Thylacocephala, ?Crustacea). Archaeopteryx. 11: 105-112. H. Polz (1992). Zur Lebensweise der Thylacocephala. Archaeopteryx. 10: 1-12.
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- clausocaris
- jurassic
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From the album: Vertebrates
Palaeocarcharias stromeri BEAUMONT, 1960 Upper Jurassic Lithographic Limestone Solnhofen Formation Tithonian Schernfeld Germany juvenile- 10 comments
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- palaeocarcharodon
- solnhofen
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Several Late Jurassic macrosemiids are known from the Solnhofen limestones, including at least Notagogus, Histionotus, Voelklichthys and two species of Propterus. References: Gloria Arratia and Hans-Peter Schultze (2012): The macrosemiiform fish companion of the Late Jurassic theropod Juravenator from Schamhaupten, Bavaria, Germany. Fossil Record 15 (1) 2012, 5–25 / DOI 10.1002/mmng.201200001
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- notagogus
- solnhofen formation
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From the album: Fossil in Matchboxes
Brachiopod Goniorhynchia boueti These specimens were found in Langton Herring, Dorset, UK, from the Frome Clay (previously known as Fuller’s Earth). From the Jurassic period (206 - 144 million years ago) Period: Jurassic, Great Oolite Langton Herring© D&E
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From the album: Fossil in Matchboxes
Brachiopod Goniorhynchia boueti These specimens were found in Langton Herring, Dorset, UK, from the Frome Clay (previously known as Fuller’s Earth). From the Jurassic period (206 - 144 million years ago) Period: Jurassic, Great Oolite Langton Herring© D&E
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From the album: Fossil in Matchboxes
Brachiopod Goniorhynchia boueti These specimens were found in Langton Herring, Dorset, UK, from the Frome Clay (previously known as Fuller’s Earth). From the Jurassic period (206 - 144 million years ago) Period: Jurassic, Great Oolite Langton Herring© D&E
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Goniorhynchia boueti with original matchbox and label.jpg
DE&i posted a gallery image in Member Collections
From the album: Fossil in Matchboxes
Brachiopod Goniorhynchia boueti These specimens were found in Langton Herring, Dorset, UK, from the Frome Clay (previously known as Fuller’s Earth). From the Jurassic period (206 - 144 million years ago) Period: Jurassic, Great Oolite Langton Herring© D&E
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Amblysemius was clearly a predator as evidenced by its mouth full of sharp teeth. It was a notable fast swimmer. Together with its only sister genus Caturus, Amblysemius was a member of the extinct Halecomorpha family Caturidae. It appears that the halecomorph Liodesmus, known from Solnhofen only, is related to the Caturids, rather than the amiiforms, as has been usually surmised. Once a diverse major group of bony fishes, the Halecomorpha have only one surviving member, the bowfin (Amia calva) of eastern North America. Living bowfins are remarkably hardy since they have a swim bladder that opens into their esophagus so they can gulp air, and hence survive in water with low oxygen. Amblysemius was a primitive species of fish that thrived during the Jurassic Period but went extinct by the Lower Cretaceous Period. Amblysemius possessed ganoid scales that are more cycloid in nature and as a member of the holosteans a bony skeleton with a partially ossified vertebral column. The Caturidae are represented in the Solnhofen Formation by at least four species: Caturus furcatus Agassiz 1834 and Caturus giganteus Wagner, 1851. Caturus pachyurus Agassiz, 1833 and Caturus bellicianus Thiollière 1852 from Solnhofen, Germany and Cerin, France were transferred to the revived sister genus Amblysemius (now Amblysemius pachyurus and Amblysemius bellicianus). Compared to Caturus, Amblysemius is characterized by its more slender body outline, the bigger and more deeply forked caudal fin being heterocerc with the upper lobe clearly longer than the lower one and the strong dentition. Amblysemius has considerably smaller scales compared to Caturus. Maximum length is around 50cm; this specimen has only 30cm or 12". References: Paul Lambers (1994) The halecomorph fishes Caturus and Amblysemius in the lithographic limestone of Solnhofen (Tithonian), Bavaria. Geobios 27:91-99
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- amblysemius
- rupertsbuch
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The ending -lepis (=scale) is a feminine noun in apposition. It must therefore be Tetragonolepis semicincta and not T. semicinctus as is often found. Taxonomy from Fossilworks.org. References: G. Corroy. 1934. Les poissons et les reptiles du Muschelkalk et du Rhetien de Basse-Provence. Bulletin de la Societe geologique de France 3, serie 5(5-6):475-483. A. S. Woodward. 1895. Catalogue of the Fossil Fishes in the British Museum (Natural History), Part III 1-544. B. G. Gardiner. 1960. A revision of certain actinopterygian and coelacanth fishes, chiefly from the Lower Lias. Bulletin of the British Museum (Natural History), Geology 4(7): 241-384. D. Thies. 1989. THE BRAINCASE AND THE BRAIN OF TETRAGONOLEPIS SEMICINCTA BRONN 1830 (ACTINOPTERYGII, SEMIONOTIFORMES). Palaeontographica Abt. A, 209, p. 1-32. D. Delsate, C. J. Duffin, and R. Weis. 2002. A new microvertebrate fauna from the Middle Hettangian (Early Jurassic) of Fontenoille (Province of Luxembourg, south Belgium). Memoirs of the Geological Survey of Belgium 48:3-83.