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Showing results for tags 'toarcian'.
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Stratificazione : Toarciano Origine: Italia grazie
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Typical pyrite preservation from this area in a concretion. This is the index fossil for the semicelatum subzone.
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Well preserved with shell.
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Mostly phragmocone. Calcite mold.
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This finely preserved specimen with complete shell on a multi block with another of this species and 2x Pseudogrammoceras was a gift from Dan Woehr (Uncle Siphuncle) when he came over for a visit. He gave it to me in the raw and I had the pleasure of preparing it. This gift inspired me to visit the site myself a year later.
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The shell of this specimen is crushed, but it nevertheless withstood the pressure. Phragmocone.
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Limestone mold of perhaps only a part of the phragmocone. This genus could get very large (deep sea goers) and they lasted chronologically for a long time, existing for most of the jurassic and cretaceous periods. It was not possible to determine the zone, since it was found in a loose block at a construction site where several zones were exposed.
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This specimen is missing part of the body chamber, but it displays very well nevertheless what size the shell of this ammonite had reached. This is the index fossil for the European bifrons zone. Literature: Rulleau, L. (1979): Geologie et Paleontologie des Carrières Lafarge à Belmont (Rhone), Section Geol. d. Comité d'Entreprise de l'usine du Val d'Azergues Howarth, M.K. (1992): The Ammonite Family Hildoceratidae in the Lower Jurassic of Britain. Monograph of the Palaeontographical Society.
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I found this "giant" (in my opinion ) bivalve at Serra d'Aire e Candeeiros, in Toarcian layers. I know it doesn't show many good details, but I hope someone can help me. 1-The rule that I use for comparison, has 20 cm long. 2-One close view Sorry for the bad pictures, Regards, P.S-This is the biggest bivalve in my collection, at the moment.
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I must admit that I like Triassic ammonoids more but Jurassic ammonites are very interesting too. So two friends and I went on a Jurassic field trip last Saturday. One friend is a specialist of lower Jurassic (Hettangian) Alpine ammonites. We visited two old locations which were unknown to both friends. Weather was very fine. It was one of these golden mountain days in autumn, with warm sun, the smell of fresh fallen leaves and virgin snow on the higher tops. While hiking from one location to the other I was lucky and found a Jurassic/Toarcian Lytoceras sp. The upper side was pretty dissolved due to strong condensation of the limestone I will prep it from the downside which is normally better preserved. The rest of the day we spent at a Hettangian location where we found smaller ammonites which were covered with a black ferro-manganese crust. Andreas
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From the album: Cephalopoda
Hildoceras augustisiphonatum (Buckman 1913), Toarcian, Furlo, Italy. 35 mm. TRADED -
From the album: Cephalopoda
Mercaticeras umbilicatum (Buckman 1913), Toarcian, Furlo, Italy. 40 mm. TRADED -
From the album: Cephalopoda
Phylloceras baconicum, Toarcian, Furlo, Italy. 45 mm. ps. TRADED -
From the album: Cephalopoda
Phylloceras selinoide, Toarcian, Furlo, Italy. 60 mm. -
From the album: Cephalopoda
Calliphylloceras capitanioi, Toarcian, Eupilio, Italy. 55 mm. -
From the album: Cephalopoda
Calliphylloceras nilsonni, Toarcian, Furlo, Italy. 55 mm. TRADED
