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From the album: Holzmaden
A 1.6 cm long Ichthyosaur (perhaps Temnodontosaurus) tooth from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). The prep work was kinda hard because the tooth broke into two pieces. Some more pictures: -
From the album: Holzmaden
A 1.2 cm long Steneosaurus (crocodile) tooth from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Two more pictures:-
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Last Sunday I was for about 6 hours in the quarry Kromer (Lower Jurassic) near Holzmaden (Germany) and I was kinda successful there. Besides several teeth I found a beautiful piece with croc bones. At first only a cross section of a bone was visible but during the preparation some more bones got visible. I am not finished yet but I prepped about 4 hours until now. This is a picture of the unprepped stone: And after 1.5 hours: I will post a picture of the current state today... I am very excited about this find because crocodile material is much rarer than Ichthyosaur material in Holzmaden. And I never found such a croc bone until now. I am really not sure what type of bone it is. Maybe from the pelvis or from the shoulder?
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From the album: Holzmaden
These are two crocodile vertebrae from the lower Jurassic (Posidonia Shale) from the quarry Kromer near Holzmaden. The bigger one is about 8 cm long. Here is a picture of the unprepped fossil: The prep work took about 10 hours. I am very pleased with this find because in general crocodile bones are much rarer than Ichthyosaur bones in Holzmaden. Some more pictures: -
Last Saturday I was in the quarry Kromer (Posidonia Shale, Lower Jurassic) for the first time of the year. Maybe some of you already noticed this topic: http://www.thefossilforum.com/index.php?/topic/93302-prepping-a-plate-with-some-ichthyosaur-vertebrae/ Beside of this plate I also found some other cool things but firstly here is a picture of the quarry: You are allowed to search in the heaps on the left behind the white car. The material isn't that bad at the moment. I was there about 6 hours and I found about 6 teeth. I already prepped three Stenosaurus (crocodile) teeth: 1 cm long: 1.8 cm long: (the best one) And 1.2 cm long: (damaged) I also found this fish: The cross section is about 5 cm long and it will need very much prep work... I don't think that I will do this one in the near future although a friend and expert said that this is a kinda nice find! My favourite finds were the bones. I found several incomplete ones which I didn't take home but also the plate with the vertebrae and another plate with some bones on it. Here is a picture of one of the visible bones: I think that should be an Ichthyosaur Humerus but I am not entire sure. I will post some more pictures of it tomorrow and after the prep. There are also a couple of ribs on the plate so it could be interesting! And for all the invertebrate fans. Here is a sweet little ammonite: Thanks for watching!!
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From the album: Holzmaden
A 2.5 cm long Ichthyosaur vertebra from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). Here is a picture of the unprepped cross section: It took about 3 hours to prep this one. Some more pictures: -
In this thread I wanna share some fossils from Holzmaden, which I found partly years ago but prepped recently with my new tools. I will not show only bones but also belemnites and other fossils from Holzmaden. All the finds are from the quarry Kromer. Hopefully I will be able to extend this thread step by step! So for today I want to show three bones from the posidionia shale from Holzmaden. Firstly this 3 cm long Ichthyosaur vertebra. Here is a picture of the unprepped piece: As you can see there was only the cross section visible so it was a kinda hard work. I think until now the prep took about 2 hours and I will probably prep it a bit more... but here is a picture of the current state of the vertebra: I am very satisfied with the result until now! Especially because I didn't lost too much of the fossil material in the areas where I had to glue it.
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From the album: Holzmaden
A small and a bit damaged 1.2 cm long Steneosaurus (crocodile) tooth from the Posidonia Shale from the quarry Kromer near Holzmaden. -
From the album: Holzmaden
A very small (a bit less than 1 cm long) Steneosaurus (crocodile) tooth from the Posidonia Shale from the quarry Kromer near Holzmaden. Another picture: -
Recently I wasnt very active here but I managed to find a couple fossils in the meanwhile. A week ago I planned to visit the Pliensbach near Holzmaden in Germany. The Pliensbach is a type locality for the so called Pliensbachium, a time period in the lower Jurassic. On the way I saw an old pile with some jurassic rocks and stopped there. Luckily I was able to find some fossils there! Here is a picture of the view I had on the top of the pile: Belemnites are very common there but I found two really nice and big ones. Both are about 15 cm long and they seem to be Acrocoelites(?) ( @TqB ). They are one of my best belemnites until! I also found remains of a very rare layer with many sea urchins and sea urchin spines in it. Too bad I wasnt able to find some urchins but I found some cool plates with many spines. At the top of the pile I found some ammonites from the Sinemurian. I like the pyrite on them! The one I am holding is probably an Oxynoticeras and the other one is a Gagaticeras: Here is an overview: And one more detailed picture: Finally I found a piece of Loligosepia aalensis (vampyromorpha) and some fish rests. Here is a picture of the vampyromorpha: Alter my visit at the pile I was at the Pliensbach for a short time but I didn't really found something I can show. Maybe I will post one or two pictures tomorrow. Thanks for watching
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From the album: Holzmaden
A 1.8 cm long Steneosaurus (crocodile) tooth from the Posidonia Shale in the quarry Kromer near Holzmaden. The prep work took about 1 hour with my air pen and my sandblaster. Some more pictures: -
From the album: Holzmaden
This is a kinda funny combination out of a fish bone and a very rare pterosaur bone. The fish bone is the bigger one (5 cm long) and is lying on the top of the pterosaur bone. The piece comes from the quarry Kromer near Holzmaden (Lower Jurassic). As these are marine deposits you can imagine how rare the pterosaur bone is Some very bad detailed pictures: (sorry for the bad quality but my camera is not good enough) -
From the album: Pterosaur Dorygnathus Teeth & Bones from Jurassic Lias - Holzmaden/Germany
© Trahho
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From the album: Holzmaden
A kinda interesting combination out of an ammonite, a belemnite and a partial Ichtyosaur rib. It wasn't very difficult to prep but all in all it took about 3 hours. The belemnite is about 10 cm long and the partial rib is about 11 cm long. I found this one last year in the quarry Kromer near Holzmaden. Some more pictures: And the unprepped rib: -
From the album: Holzmaden
A 1.5 cm long Ichthyosaur tooth from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale).- 2 comments
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From the album: Holzmaden
A 6bcm long Saurorhynchus (?) jaw from the quarry Kromer in Holzmaden (Lower Jurassic, Posidonia Shale). Next to it is a beautiful pyritized bivalve. Another picture: -
From the album: Holzmaden
This one is a 14 cm long Acrocoelites from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). Some more pictures: This is one of my favourite Belemnite from there.-
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From the album: Holzmaden
A stone with two ribs, a half vertebra and some rests of some belemnits from the quarry Kromer near Holzmaden (Lower Jurassic). All the bones are Ichthyosaur bones. The story of this one is kinda curious because on the stone was firstly only the damaged vertebra visible. But after a hit with my hammer I saw two cross sections, which belong to Ichthyosaur ribs: After some prep: And some pictures of the result: It was very tough to prep it because the stone is extremely hard and the separation layer between the fossil and stone was bad. I think all in all it took about 5 hours to finish this one. I am not completely satisfied with the result but its okay. -
From the album: Holzmaden
A 7 cm long Saurorhynchus (?) lower jaw from the quarry Kromer in Holzmaden (Lower Jurassic, Posidonia Shale). A detailed pictures of the teeth: -
From the album: Vertebrates
Dapedium stollorum THIES & HAUFF 2011 Early Jurassic Posidonia shale Holzmaden Germany Length 23cm Lit.: D. Thies and B. Hauff: A new species of Dapedium LEACH, 1822 (Actinopterygii, Neopterygii, Semionotiformes) from the Early Jurassic of South Germany. Palaeodiversity 4: 185–221; Stuttgart 30 December 2011. -
Taxonomy from Thies & Waschkewitz 2015. Formerly identified as D. punctatum. Quote from Thies et Hauff, 2011: "Specimens of Dapedium from the Posidonia Shale identified as D. punctatum by QUENSTEDT (1858) were already suspected of not being conspecific with D. punctatum AGASSIZ, 1835 from the Lower Liassic (Sinemurian) of England by WAGNER as early as 1860." Diagnosis from Thies & Hauff 2011, p. 188: "Body ellipsoidal to circular in outline, rostral and ventral borders of the operculum forming an obtuse angle of 100° to 120°, caudal margin of scales serrated, anterior scales behind the operculum of the second to fourth vertical row with a length/height ratio ranging between 0.29 and 0.32, marginal teeth unicuspid." References: D. Thies and B. Hauff: A new species of Dapedium LEACH, 1822 (Actinopterygii, Neopterygii, Semionotiformes) from the Early Jurassic of South Germany. Palaeodiversity 4: 185–221; Stuttgart 30 December 2011. Thies, D. & Waschkewitz, J. 2015. Redescription of Dapedium pholidotum (Agassiz, 1832) (Actinopterygii, Neopterygii) from the Lower Jurassic Posidonia Shale, with comments on the phylogenetic position of Dapedium Leach, 1822. Journal of Systematic Palaeontology, 14 (4): 339-364. doi: 10.1080/14772019.2015.1043361
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https://www.nationalgeographic.com/science/2018/12/incredible-jurassic-ichthyosaur-fossil-preserves-skin-blubber/ @LiamL @belemniten
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From the album: Holzmaden
Another 12 cm long Acrocoelites from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). -
From the album: Holzmaden
A 12 cm long Acrocoelites gracilis from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale).- 2 comments
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From the album: Holzmaden
A nice combination of two Acrocoelites gracilis from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). The bigger one is 17 cm long and the other one is 14 cm long.
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