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A few highlights from fossil hunting in the Amberg-Sulzbach county (Bavaria, Germany) in June 2022. There's small abandoned limestone quarries all over the place, picked a couple random ones and found these guys and dozens of more fragmentary bits.
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- amberg-sulzbach
- ammonites
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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. Probably no dental papillae. Teeth obtuse, not very strong. Adoral plates in contact proximal to the buccal shield. Brachial spines 3, erect, a little longer than the article. Ventral brachial plates pentagonal, longer than wide, contiguous on half of the arm only. Dorsal brachial plates triangular with a very convex distal margin. Tentacular pores on almost the entire length of the arms, two tentacular scales per pore. Vertebrae with zygospondyle articulation." Kutscher and Röper 1965 note that “Ophiopetra lithographica differs from Sinosura kelheimense, which occurs simultaneously with it, already by the protruding, distinct spines, the non-keeled dorsal shields, the distinct spiny warts and the sickle-shaped bursal spines.” (translated from german by oilshale). References: Enay, R.; Hess, H. (1962) Sur la découverte d'Ophiures (Ophiopetra lithographica ng.nsp.) dans le Jurrassique supérieur du Haut-Valrmomey (Jura méridional). Eclogae geologicae Helvetiae. 55(2), 657-673, pl. I-II. Kutscher, M.; Röper, M. (1965) Die Ophiuren des Papierschiefers von Hienheim (Malm zeta 3, Untertithon). Archaeopteryx, 13: 85-99.
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Recently I visited a clay pit near Mistelgau in Bavaria. It's a kinda famous quarry because of the "belemnite battle field". Huge plates with hundreds/thousands belemnites come from there. But you can also findother fossils like ammonites and also bones. I already was there a few times and I mainly found ammonites and of course belemnites. But this time I also found some bones in the area of the Belemnite battle field. They were just laying therebut it was kinda difficult to find them because they are round, Belemnites are round etc. so I more or less crawled through the quarry So here are two picture of the quarry: The typical ground there: Lots of belemnites, some ammonites and very rare other fossils like bones. I found two types of bones. Firstly Ichthyosaur paddle bones: Here is a picture of all the paddle bones I found (unprepped): Mostly they were kinda small but I was able to find a nice one with a length of 3 cm: And here is another detailed picture of a small one (1cm)
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From the album: Prae's Collection (REMPC)
Ammonite - Indeterminate species Jurassic, Tithonian Solnhofen Limestone, Altmuhltal Formation Bavaria, Germany -
Literature: Presl, K. in Sternberg, C. von, 1838. Versuch einer geognostisch–botanischen Darstellung der Flora der Vorwelt. Leipzig & Prag. Part 8, vii+ 71 p. Kathleen Bauer et al. (2015): LEPACYCLOTES KIRCHNERI N. SP. (ISOETALES, ISOETACEAE) AUS DEM UNTEREN JURA VON OBERFRANKEN, DEUTSCHLAND. Ber. Naturwiss. Ges. Bayreuth 2015, XXVII: 429-443 Nosova, Natalya, van Konijnenburg-van Cittert, Johanna H.A., Kiritchkova, Anna, New data on the epidermal structure of the leaves of Podozamites Braun, Review of Palaeobotany and Palynology (2016), doi:10.1016/j.revpalbo.2016.11.00
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Literature: Newberry, John S. 1888. Fossil fishes and fossil plants of the Triassic rocks of New Jersey and the Connecticut Valley. U.S. Geological Survey Monograph. xiv: 77-152. H. Steur: De onder-lias-flora van Bayreuth (Deel 2). GRONDBOOR & HAMER NR 2-2011.
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Hello, I have found these ammonites a few years ago in Bavaria, Germany. These are found in an area roughly 20km from Solnhofen (Jurassic). I beleave the geological formation in this area is a little older then the formations in Solnhofen but i can't find proof if this. I hope these pics are of enough quality to provide an ID. Regards, Arno
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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. Taxonomy from Diagnosis from Bertram 1977, p. 193: " Notagogus reaching standard length of 70 mm; mean proportions as percentage of standard length: head length 33%, trunk depth 29 %, predorsal length 41 %; dorsal fin-ray count: ant. 10-14, post. 10-11; about 34 lateral line scales, only part of their hind borders bearing prominent serrations; no free fulcra on pectoral fin, very few fringing fulcra on first dorsal fin, fringing fulcra on anal fin." Line drawing from Bartram 1977, p. 191: Identified by oilshale using Bartram 1877. References: Agassiz, L. (1843) Recherches Sur Les Poissons Fossiles. Tome I (livr. 18). Imprimerie de Petitpierre, Neuchatel xxxii-188. Woodward, A. S. (1919) The fossil fishes of the English Wealden and Purbeck Formations, Part III. Palaeontographical Society, London 1917:105-148. Bartram, A.W.H. (1977) The Macrosemiidae, a Mesozoic family of Holostean fishes. Bulletin of the British Museum of Natural History (Geology), 29, 137-234. 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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Calcitized phragmocone.
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Calcite mold.
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These little guys are the index fossil for the platynota Zone. They are the microconch to Physodoceras sp. Old German Chronostratigraphy: Malm (Weissjura) gamma 1
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This sample still has a white substance covering it which is original shall material. This is the index fossil for the apyrenum subzone. Old German Chronostratigraphy: Lias (Schwarzjura) delta Literature: Simonsen,S. et al (2012): Die Tongrube Buttenheim, 2. überarbeitete Auflage, Verlag Der Steinkern
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- a1150
- amaltheenton formation
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Remnants of the original aragonite shell were still on this fossil when found, but they were removed in order to expose the pyritized steinkern mold. The overwhelming majority of the fossils at Buttenheim show this type of preservation, although pure or partial calcite molds also occur. This is also the index fossil for the solare subzone, which is only recognized in Germany. For information on identification of this species see Pleuroceras spinatum under Collections. Old German Chronostratigraphy: Lias (Schwarzjura) delta Literature: Simonsen,S. et al (2012): Die Tongrube Buttenheim, 2. überarbeitete Auflage, Verlag Der Steinkern
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- a587
- amaltheenton formation
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The first three photos show an extremely well-preserved specimen of this species which was gifted to me by an aquaintance. The last three show an accumulation of strongly pyritized ones from the clay pit at Buttenheim in Bavaria, the largest of which has a diameter of 5cm. This is the index fossil for the spinatum zone and also for the spinatum subzone, an informal designation in Germany. The clay pit at Buttenheim is world-reknowned for its upper Pliensbachian ammonite fauna. It is one of, when not the best site worldwide for studying the breadth of variation and development of form through time, particularly of the various species of the genus Pleuroceras. Zones, subzones and horizons are all easily accessible and layed out like the pages of a book here. This species looks quite similar to P. solare, but is relatively easily distinguishable upon closer study. The extremely strong ribs rise to a point slightly above the keel, whereas the somewhat weaker ones of P.solare lie a little below its keel. The whorls of P.spinatum are also somewhat wider than those of P.solare. Old German Chronostratigraphy: Lias (Schwarzjura) delta Literature: Simonsen,S. et al (2012): Die Tongrube Buttenheim, 2. überarbeitete Auflage, Verlag Der Steinkern
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- a369 & a1148
- altdorf
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The last three photos show a specimen from the Whitby Mudstone Formation in Yorkshire in pyrite conservation. The diagnosis for distinguishing this species from D.commune, which is quite similar, can be found in the collection here under that species. Literature: Howarth, M.K. (1973): The Stratigraphy and Ammonite Fauna of the Upper Liassic Grey Shales of the Yorkshire Coast. Bulletin of the British Museum (Natural History) Geology. Vol.24 No.4
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The quality of preservation of the fossils at this world famous site is outstanding. This sample is practically complete, just missing the last portion of the body chamber. It gives its species name to both the lithographical unit and the zone. Lithography: Parkinsonien-Oolith Old German Chronostratigraphy: Dogger(Braun Jura) delta Literature: Callomon et al (1987): Zur Stratigraphie des Mittel- und unteren Oberjuras in Sengenthal und Neumarkt/Opf. (Fränkische Alb). Stgt. Beitr. B132 Schmidt-Kaler et al (1992): Wanderungen in die Erdgeschichte: Sulzkirchen & Sengenthal. Verlag Dr. Friedrich Pfeil.
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