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  1. Ludwigia

    Craspedites nodiger

    Calcite Steinkern.
  2. Taxonomy from Schweigert et al. 1998. Description by Schweigert et al. 1998, p. 28 (translated from German by oilshale):"Muensteria vermicularis Sternberg alias Epitrachys rugosus (Eulers) is an elongated, gradually widening structure with a rough, granular surface. Usually it is not strictly straight but slightly curved. Particularly characteristic is a fine striation or wrinkling running transverse to the longitudinal axis. This striation gradually disappears on the broader end, so that it is only dimly discernible in the rock, if at all." References: Sternberg, K. M. (1833): Versuch e
  3. oilshale

    Gyrodus sp.

    The Canjuers sediments are slightly younger than the Solnhofen limestones in Germany. Gyrodus (from Greek: γύρος gyros, 'curved' and Greek: ὀδούς odoús 'tooth') is a genus widely distributed in the Jurassic. Two species, G. circularis and G. hexagonus, are described from Solnhofen. This distinctly elongated looking fish from the Canjuers deposits of about the same age is probably a species not yet described. Diagnosis from Lambers 1991, p. 490 (Genus, emend. Hennig 1906): ”Pycnodontid fishes with the following combination of characters: body form hexagonal; skull without ganoin; derm
  4. oilshale

    Amiopsis lepidota (Agassiz, 1833)

    Taxonomy from Fossilworks.org. Etymology: Lepidota (Greek), a form of lepidotós, scaly. Grande & Bemis 1998, p.490: “ Originally described as †Megalurus lepidotus by Agassiz in 1833:146, and listed that way by numerous authors over the next 100 years or so, but †Megalurus Agassiz is a junior homonym--see generic list for †Amiopsis Kner, 1863, above. Also referred to as †Urocles lepidotus by Jordan (1919:567); Lange (1968:32); Lambers (1992:295); and others." Grande & Bemis 1998, p.493: “Emended species diagnosis-†Amiopsis lepidota differs from other species of the genus by the fo
  5. oilshale

    Ophiopsiella procera (Agassiz, 1843)

    The genus previously known as Ophiopsis Agassiz, 1834 (except Ophiopsis muensteri Agassiz, 1834), was reassigned by Lane & Ebert 2015 to Ophiopsiella. Taxonomy from Lane & Ebert 2015. Lane & Ebert 2015, p. e883238-4 :”Diagnosis—The genus Ophiopsiella is characterized by the following unique combination of features: medium-sized halecomorph fishes with body depth increased anteriorly to form a low hump and tapering posteriorly; parietals equal in length to dermopterotics; antorbitals do not reach the orbit; lacrimal large and deep; *low number of suborbitals with ventral-most
  6. Mesolimulus walchi in dorsal preservation with (poorly) retained "death trace". Taxonomy from Russel et al. 2021. Russel et al. 2021, p. 6: "Emended diagnosis. Prosoma semi-circular, genal spines without indentations that terminate at a first fifth of thoracetron. Cardiac lobe cone-shaped with crenulated margins and cardiac ridge. Ophthalmic ridges present and do not curve towards lateral prosomal margins. Posterior prosomal rim pronounced and lacks beads along margin. Occipital bands present and pronounced. Thoracetron trapezoidal and has pronounced flange. Lateral margin ridges abs
  7. oilshale

    Magila latimana Muenster 1839

    Taxonomy from Fossilworks.org. The state of preservation of Magila is mostly poor, which becomes understandable when you consider that Magila was a burrowing crustacean living in the ground. Therefore, a more calcified carapace was not necessary. Only the exceptionally wide claws are mostly well preserved. These probably also served for digging. Diagnosis from Garassino & Schweigert 2006, p. 22: “Carapace cylindrical laterally flattened; deep cervical groove strongly directed forward; one or two carinae weak in antennal region; rostrum short and edentate; antennal spine well developed;
  8. oilshale

    Archaeomaene tenuis (Woodward 1895)

    Taxonomy from Lynne Bean 2021. Archaeomaene tenuis can be easily distinguished from the much more common Cavenderichthys talbragarensis by the more posterior dorsal fin. Diagnosis for Archaeomaene tenuis from Bean 2021 (modified from Woodward 1895): “ Same as family with the following additional characteristics. The supraorbital sensory canal has branched (ramified) tubules [*]. The dorsal fin is placed opposite to the anal fin. Pelvic, dorsal and anal fins are without fringing fulcra [*]. There are six uroneurals; the epaxial margin of the caudal fin has a few long basal fulcra and long f
  9. Taxonomy from Fossilworks. From Ebert 2014, p. 39: "Belonostomus sphyraenoides Agassiz, 1844 is known only from the Eichstätt basin. Belonostomus is very rare in the Plattenkalk basin of Eichstätt and as far as I know, all specimens belong to B. sphyraenoides. The Plattenkalk of Eichstätt is dated as eigeltingense β horizon of the Tithonian (Schweigert et al. 2013). Belonostomus sphyraenoides has about 71 vertebrae and 71 lateral line scales." References: Agassiz, L. (1833-1844): Recherches sur les Poissons Fossiles.- 5 vols., 1420 pp. 396pls., with supplements. Petitpierre, Neu
  10. Since the summer of 2007, the Jura Museum Eichstätt has maintained a scientific research excavation in the Ettling limestone quarry (Markt Pförring). For a long time, this limestone quarry was considered almost fossil-empty, until private collectors discovered a number of exceptionally well-preserved specimens. The Ettlingen site yielded numerous species previously unknown in the rest of the Plattenkalk region. The fish are very difficult to prepare - the preparation is done under the microscope purely mechanically by scraping only with fine needles and scalpels. The last two pictures ar
  11. charlie3425

    Fossils from the French west coast

    I was able to obtain a couple of fossils found on the western coast line of France. The first one is presumably a piece of paddle bone from the upper tithonian, found between Wimereux and Cap de la Crèche. It measures about 220 x 160 x 65mm. Very heavy. The second is a vertebra found between Cap d'Alprech and Equihen (Tithonian). Measuring about 80 x 65 x 35mm. Could these be pliosaur or rather plesiosaur fossils? I'm sure they are too worn to identify better than sp.? Thanx for notes!
  12. Taxonomy from Mindat.org. Diagnosis from Enay and Hess 1962, p. 662 (translated from french by oilshale): "Small species. Disc granulated on both sides (radial shields included), the granules hiding small imbricate plates. Radial shields and plates articulated by means of two condyles and a facet carried by both the radial shield and the corresponding plate. Radial shields of moderate width, those of the same radius not touching. Ambulacral parts of oral plates or jaws (= oral frames of Matsumoto) without wings. Double peristomal plates. About 6 contiguous oral papillae on each side. Prob
  13. Hi all! In continuation of the previous reports. Less text, more pics Bits of scenery:
  14. oilshale

    Propterus elongatus

    From the album: Vertebrates

    Propterus elongatus Wagner, 1863 Upper Jurassic Tithonian (Malm zeta) Eichstätt Germany Length 21 cm / 8 inch
  15. oilshale

    Glyphea pseudoscyllarus

    From the album: Invertebrates

    Glyphea pseudoscyllarus Schlotheim, 1822 Upper Jurassic Tithonian (Malm zeta) Solnhofen Germany Length 6 cm / 2 inch
  16. Hi all! Those who follow my reports know I was planning another trip to Ulyanovsk in spring. Well, here is the report, in continuation of 1, 2 and 3. This time I was on the shore for 3 days. In short, the weather was fine, the ice abundant, the competition high and the finds scarce. The trip felt more like an extravagant outing than a productive fossil hunt
  17. Von Mayer originally described this chimaera under the name Ischyodus avitus. Elasmodectes avitus, a cartilaginous fish, is conspicuous for its sparsely ossified skeleton. There is a nuchal spine behind the head; the dorsal fin begins just behind the nuchal spine and extends to the tail. Elasmodectes seems to have possessed a skin or only very thin scales, which seems to be almost impossible to preserve. The Skull is presenting its dosal view. Reverence: WOODWARD, A.S. (1891) Catalogue of the fossil fishes in the British Museum (Natural History). Part II. containing
  18. oilshale

    Agathis jurassica White, 1981

    One of the common coniferous plant fossils found at the Talbragar site is Agathis jurassica. The genus Agathis is extant, representing a small group of some 21 species mainly distributed in Australasia, belonging to the same family (Araucariaceae) as Wollemia. Together with a fishtail. Key references: White. M.E., 1981a. Fish beds reveal lush fossil forest. Australian Natural History 20 (7), 227-230. White. M.E., 1981b. Revision of the Talbragar Fish Bed Flora (Jurassic) of New South Wales. Records of the Australian Museum 33 (15), 695-721. Woodward,
  19. From the album: Vertebrates

    Macrosemimimus fegerti SCHROEDER et al., 2012 Upper Jurassic Lower Tithonian Ettling Germany Length 20cm / 8" Picture under UV light
  20. oilshale

    Fish non det.

    From the album: Vertebrates

    Fish non det. Upper Jurassic Tithonian Hienheim Germany Length 2cm / .8"
  21. Hi all! I was finally able to visit the Volga site thanks to a water level/ good weather window. The journey was mostly a success, I got a better understanding of the site, used new means of transportation and examined more of the shoreline. Among the finds were two dozens of marine reptile verts and bone fragments and LOTS of ammonites and other mollusks. Unfortunately the river level was not low enough, 1m higher than during my 1st trip, 0,5m lower than in the 2nd. But it was at least possible to walk the shore. There's still a lot more to do, but now I have a pretty clear idea how to m
  22. Hi, I'm considering this partial ichthyosaur jaw with 5 teeth (3 in a natural position and 2 others that have been displaced--one is on top and one is on the backside) from Jurassic (Tithonian) deposits in Tartarstan, Russia. The seller, who is also the finder/preparer, has identified this as Undorosaurus and noted that there is repair to the last tooth at the end, which broke and has been glued back together, and some holes that he filled in on that tooth--these are shown in the second photo with the red line (repaired break) and circles (filled in holes), as drawn by seller--but
  23. oilshale

    Caturidae non det

    From the album: Vertebrates

    Caturidae non det. Upper Jurassic Tithonian (Malm zeta) Solnhofen Germany Length 33cm / 13"
  24. Three species of Thylacocephala have been described from the Solnhofen Formation (“Solnhofen lithographic limestones”) so far: Clausocaris lithographica, Dollocaris michelorum, and Mayrocaris bucculata. A fourth new genus and species was newly described in 2019: Falcatacaris bastelbergeri. References: Braig, Florian, Haug, Joachim T., Schädel, Mario, and Haug, Carolin (2019): A new thylacocephalan crustacean from the Upper Jurassic lithographic limestones of southern Germany and the diversity of Thylacocephala. Palaeodiversity, 12(1) : 69-87
  25. RuMert

    Jurassic fish (?) tooth for ID

    Hi, what do you think of this tooth? It's of round section (at the base), has carinae, rooted probably. Possible ID: Eutrichiurides, Lepisosteus or maybe something like croc? Middle Tithonian, Jurassic, Moscow, Russia (marine environment). 7 mm length. Provenance is not crucial, IMHO, if you have something similar, for example, from Dorset, please let me know. "frontal" view round base "side view", carinae a "head" is visible here, it was probably the part that stuck out of the jaw view from
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