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Showing results for tags 'posidonia shale'.
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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: -
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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- acrocoelites
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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
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 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
Another belemnite (perhaps Acrocoelites) with a length of 10 cm from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). -
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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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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- acrocoelites gracilis
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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. -
From the album: Holzmaden
A colorful 9 cm long Acrocoelites from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). -
From the album: Holzmaden
A 14 cm long Acrocoelites sp. from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). -
From the album: Holzmaden
A 10 cm long Acrocoelites gracilis from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale). -
From the album: Holzmaden
A 6 cm long rest of an Ichthyosaur neural spine bone from the quarry Kromer near Holzmaden. After a bit of prep: And finished:- 4 comments
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- crocodile
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From the album: Holzmaden
A 10 cm long Acrocoelites from the quarry Kromer near Holzmaden (Lower Jurassic, Posidonia Shale).- 3 comments
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- acrocoelites
- belemnite
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From the album: Holzmaden
A 9 cm long Acrocoelites from the quarry Kromer near Holzmaden (Posidonia Shale). -
From the album: Holzmaden
A 2 cm long Ichthyosaur vertebra from the quarry Kromer near Holzmaden (Posidonia Shale). Some more pictures: I personally like the color on this one! -
From the album: Holzmaden
A 13 cm long part of an Ichthyosaur rib from the quarry Kromer near Holzmaden (Posidonia Shale): Unprepped: Some more pictures of the prepped piece: -
From the album: Holzmaden
A 3 cm long Ichthyosaur vertebra from the quarry Kromer near Holzmaden. The preparation was kinda hard because at the beginning you could only see the cross section: And here is another picture of the prepped vert: -
This piece was found by me two years ago in the Kromer Quarry near Holzmaden and was prepped by Roger Furze ( @Ludwigia ). On the piece you can see a disarticulated Ichthyosaur skull with some ribs and vertebrae. You can see one eyehole very good, although the eye itself isn't preserved. Isolated bones are not that rare in Holzmaden but such pieces are very rare! It could be a skull of a juvenile.
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