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Showing results for tags 'steneosaurus'.
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A new fossil crocodylomorph-related paper is now available online: Johnson, M. M., Young, M. T., and Brusatte, S. L. (2020). Emptying the wastebasket: a historical and taxonomic revision of the Jurassic crocodylomorph Steneosaurus. Zoological Journal of the Linnean Society 189 (2): 428–448. https://doi.org/10.1093%2Fzoolinnean%2Fzlaa027 Michela Johnson and colleagues restrict Steneosaurus to the type species S. rostromajor, and make the teleosauroid snout MNHN 8900 the S. rostromajor lectotype (the skull fragment MNHN 8753 was later recognized as belonging to the metriorhynchid Metriorhynchus superciliosus) and they correctly recognize, as I had tacitly noticed, that Eudes-Deslongchamps (1867-1869) made an error in declaring that the Bathonian-age teleosauroid 'Steneosaurus' megistorhynchus best fulfilled the function of Steneosaurus type species not knowing that megistorhynchus was not an originally included nominal species of Steneosaurus. A Ph.D thesis written by Johnson last year regarding teleosauroids is available at this link: https://era.ed.ac.uk/handle/1842/36656 (Chapter 4 of the thesis by Johnson resurrects Macrospondylus for S. bollensis from the Toarcian of Europe and coins new genera for several taxa placed in Steneosaurus while revalidating Aeolodon and Sericodon, but I wouldn't disclose the names of the new genera until Chapter 4 is published, because doing so would be tantamount to stealing my thunder) In any case, Johnson and colleagues at long last figured out the concept of what the original Steneosaurus is, and given that Bathysuchus, Aeolodon, and Sericodon are much younger than the Steneosaurus type species, whereas Macrospondylus and a few other Early Jurassic teleosauroids are much older than rostromajor, it is apparent that the past assignment of many teleosauroid species to Steneosaurus is a historical accident and not reflective of biology reality, because Lemmysuchus is closer to Machimosaurus than to Steneosaurus or 'S.' edwardsi.
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From the album Vertebrates (other than fish)
2.5cm. Tooth. Obtained on a trade with Strepsodus. Lower Oxford Clay Callovian Middle Jurassic Found at Maxey Pit, Peterborough, Cambridgeshire, UK -
From the album Holzmaden
A 2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Sadly its a bit damaged. Another picture: -
From the album Holzmaden
A 2 cm long Steneosaurus tooth (crocodile) with a belemnite fragment from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Two detailed pictures: Sadly the tooth is broken and a little piece is missng. -
From the album Holzmaden
A 1.2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). That black fossil around the tooth is petrified wood. Some more pictures:-
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- petrified wood
- marine reptile
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From the album Holzmaden
A 2 cm long Steneosaurus tooth (crocodile) from the lower Jurassic from the quarry Kromer near Holzmaden (Germany). Some more pictures:-
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- posidonia shale
- lower jurassic
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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: -
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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- germany
- reptile bone
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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. -
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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- holzmaden
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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: -
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: -
Recently you could find "many" bones and teeth in a "Bonebed" in a quarry near Buttenheim in Germany. Too bad I was a bit too late to search in this Bonebed. As I was there it was still possible to find something but the layer was buried under about 1 meter dirt. So I couldn't really find something there. All bones and teeth come from the Toarcian. This thread of @Kasia inspired me to buy some teeth and bones from there too. So thank you for the inspiration Here are my acquirements: I bought three Steneosaurus (crocodile) teeth: The first one is about 1. 3 cm long: Detailed: The next one is a big one with a length of 2 cm. This one was found in Altdorf: The last one is damaged and small (0.8 cm long) Beside of these Croc teeth I also bought some Ichthyosaur material from there: A 1.1 cm long tooth which could be quite nice if someone didn't glued it that bad... I am not sure what I will do with this one because there seems to be another tooth in the matrix and I will maybe try to break it and glue it a bit better. Too bad the teeth are extremely fragile so I am not sure what I will do... And another small Ichthyosaur tooth with a length of 0.6 cm: And last but not least three small Ichthyosaur vertebrae: All three are a bit bigger than 2 cm. All in all I have to say that I am quite satisfied with my purchase expecially because I didn't had to pay too much money for them. Thanks for viewing
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- buttenheim
- vertebrae
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From the album Holzmaden
A 1.2 cm long Steneosaurs (crocodile) tooth from the quarry Kromer near Holzmaden (Lower Jurassic). Because the tooth is that filigree I didnt prep it further. Another image: -
From the album Holzmaden
A 1 cm long Steneosaurs (crocodile) tooth from the quarry Kromer near Holzmaden (Lower Jurassic). Another image: -
From the album Holzmaden
A not so bad 1.5 cm long Steneosaurus tooth from the quarry Kromer near Holzmaden. The prep work was very hard because the tooth is quite fragile. Another picture: -
After my visit last week (http://www.thefossilforum.com/index.php?/topic/86063-my-little-trip-to-solnhofen/) This time I was at the visitor quarry in Solnhofen. It was very hard work and it was too hot but the finds arent too bad Its a pity that I couldnt find a fish but nevertheless I found some interesting things! Two pictures of the quarry: A beautiful 4 cm long Laevaptychus: A cuttlefish remain: with nice details (6 cm long): And my finds of the day: Two teeth Teeth arent that common in Solnhofen I assume, so I must had some serious luck The first one is 1.5 cm long and it seems to be a crocodile tooth. I think its a Steneosaurus tooth: I like the root The second isnt that big with a length of 0.7 cm. I cant determine this one... Maybe also a crocodile tooth? Maybe someone can help me a bit with determining? Thanks for your help! Hope you enjoyed the pictures!
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Does anyone know if toys/models of Steneosaurus (the slender-bodied longirostral Jurassic teleosaurid crocodyliform often found in Europe and the UK) exist? I'd like to get one if I can. -
From the album Holzmaden
A 1.5 cm long Steneosaurus tooth with a damaged tip. It comes from the quarry Kromer in Holzmaden (Lower Jurassic). The prep work took about an hour.-
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- lower jurassic
- quarry kromer
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From the album Holzmaden
A 1.3 cm long Steneosaurus (crocodile) tooth from the quarry Kromer near Holzmaden (Lower Jurassic). Some more pictures: -
From the album Holzmaden
A 1.6 cm long Steneosaurus tooth from the quarry Kromer near Holzmaden (Lower Jurassic). Another picture:-
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- steneosaurus tooth
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From the album Holzmaden
A 0.7 cm long Steneosaurus from the quarry Kromer near Holzmaden (Lower Jurassic). The tip is a bit damaged. -
From the album Holzmaden
A beautiful about 2 cm long Steneosaurus tooth from the quarry Kromer near Holzmaden (Lower Jurassic). -
From the album Vertebrates (other than fish)
11 mm. long tooth. Missing the point again Recieved on a trade for prep with Sebastian (belemniten). From the slate quarry Kromer in Oehmden near Holzmaden. Early Jurassic, early Toarcian Posidonienschiefer, "Schlacken". -
From the album Holzmaden
Another Steneosaurus tooth from Holzmaden (Lower Jurassic) with a length of 1.3 cm.
