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Showing results for tags 'chondrichthyes'.
Found 19 results
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I found this tooth and part of it that snapped off along some spoil piles. There is no root, and I believe it is the labial view of the tooth surface exposed. The stone comes from the Deer Creek Formation, Ervine Creek Member. I believe it is a Petalodont, possibly Harpacodus?
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- petalodont
- chondrichthyes
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From the album: My collection in progress
Rhombodus binkhorsti Dames 1881 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 1,8x2,8 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Batoidea Order: Rajiformes Family: Rhombodontidae -
From the album: My collection in progress
Cretalamna biauriculata Wanner 1902 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 1,8x2,8 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Otodontidae -
From the album: My collection in progress
Striatolamia macrota Agassiz 1843 Location: Morocco Age: 56-48 Mya (Ypresian, Eocene, Paleogene) Measurements: 1,8x2,8 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Odontaspididae -
From the album: My collection in progress
Squalicorax pristodontus Agassiz 1843 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 2,5x1,5 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Anacoracidae -
Over the last two years I have been able to collect a small but diverse group of shark and other chondrichthyan teeth from Pennsylvanian deposits in Illinois. Actually, all but one of the teeth are from one exposure of the La Salle Limestone of the Bond Formation- the other tooth was found in some roadside rip rap limestone in Central Illinois which seems to share many species with the La Salle, but unfortunately I have no way of determining the exact origin. Here is the first tooth, this is the one collected from rip rap in northern Champaign County. It is a cladodont type tooth,
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- shark
- pennsylvanian
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From the album: Muncie Creek Shale Phosphatic Nodules
Currently being donated and Identified. Will update on this specimen if this is a new species and its identification. -
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From the album: Muncie Creek Shale Phosphatic Nodules
The second half of the cartilage pterygiophores When breaking the concretion most of the internal structure was unfortunately damaged -
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From the album: Muncie Creek Shale Phosphatic Nodules
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From the album: Muncie Creek Shale Phosphatic Nodules
Currently being donated and Identified. Will update on this specimen if this is a new species and its identification. -
This tooth was labeled as Orodus but I wanted to get some other opinions. I see quite a few different Paleozoic tooth morphologies that are called Orodus which can be a little confusing. I am not saying the Orodus ID is incorrect but I see some things that remind me of a Hybodontiformes tooth. Burlington Limestone Biggsville Quarry Biggsville, Illinois The tooth measures 5mm across.
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L1: 7.6 cm L2: 6.2 cm W: 6.0 cm
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I know very little about shark teeth. I found this one a while back in Pennsylvanian (Desmoinesian) shale in northeastern Oklahoma. I am speculating this may be deltodus only because I see a nearly identical tooth labeled as deltodus on another website. The fossil is very thin (too thin to photograph the edges). Besides confirming the taxonomy, can anyone tell me which surface of the tooth is shown in Side A? Finally, would you say Side B is mainly matrix (other than the edges)? I think matrix is showing through the cracks on Side A, and that may be the only thing holding the fossil together.
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From the album: Chondrichthyan Teeth From The Pennsylvanian Period
The more flattened version and 3 extra fragments from another Petalodus -
From the album: Chondrichthyan Teeth From The Pennsylvanian Period
A few Petalodus teeth fragments I have found -
Help request! I am putting together a tool for judging rock age based on very crude, whole-rock, hand-sample observations of fossil faunas/floras -- the types of observations a child or beginner could successfully make. I view this as a complement to the very fine, species-level identifications commonly employed as index fossils for individual stages, biozones, etc. Attached is what I've got so far, but I can clearly use help with corals, mollusks, plants, vertebrates, ichnofossils, and the post-Paleozoic In the attached file, vibrant orange indicates times in earth history to com- 5 replies
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- biostratigraphy
- cambrian
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Red Hill is a site I first went to 10 years ago with my son, Ian who was 10 at the time. It is a very deep road cut into the uppermost part of the Catskill Formation representing a late Fammenian river system that was draining the Acadian mountains to the east and emptying into the inland sea in western PA and OH. It is one of a handful of sites in the world where Devonian tetrapods have been found. The site has fossil layers in both channel margin (red layers) and flood plain (gray-green layers) facies. While it is an active research site and groups go there under the understanding that anyth
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Hello, I am looking for help identifying a specimen collected during field work for my dissertation. The piece was collected from the Lower Oxford Clay (jason zone) in Peterborough, Cambs. I suspect that it is Ischyodus egertoni, but am not positive whatsoever! Any thoughts would be appreciated Cheers, Jacob.
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- oxford clay
- callovian
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I can't identificate it. I found it at marine sandstone from Paleogene. Also, do somebody has a handbook about chondrichthyes of Cappetta 2012 in PDF?
