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Showing results for tags 'cephalopoda'.
Found 15 results
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The Devonian period is known as "The Age of Fish", but could also be known as "The Age of Brachiopods." In the Early / Lower Devonian, brachiopods reached the height of their diversity towards its end in the Emsian. We see the ancestral groups occurring, lingulids, craniids, orthids, protorthids, pentamerids, rhynchonellids and strophomenids, as well as the later successful groups we have seen before such as atrypids, athyrids and orthotetids, plus the rise of spiriferids, spiriferinids and productids and the beginning of the terebratulids. By the end of the Devonian , several of these g
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- pentremitidea archiaci
- cordillera cantabrica
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From the album: My collection in progress
Parkinsonia pachypleura Buckman 1925 Location: Saint-Benin-d'Azy, Bourgone-Franche-Comté, France Age: 168 - 166 Mya (Batonian, Middle Jurassic) Measurements: 4,2 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Suborder: Ammonitina Family: Parkinsoniidae -
From the album: My collection in progress
Cleoniceras sp. Parona & Bonnarelli 1895 Location: Atsimo-Andrefana, Madagascar Age: 157 - 155 Mya (Oxfordian, Upper Jurassic) Measurements: 4,5 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Ammonitida Suborder: Ammonitina Family: Hoplitidae The ammonite is iridescent. In some parts is visible the elaborate ammonitic suture pattern. -
From the album: My collection in progress
Manticoceras sinuosum Hall 1843 Location: Erfoud, Morocco Age: 383 - 359 Mya (Upper Devonian) Measurements: 7,2 cm (diameter) Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Cephalopoda Subclass: Ammonoidea Order: Agoniatitida Suborder: Gephuroceratina Family: Gephuroceratidae -
From the album: Bertie Group fossils
An uncommon cephalopod from the Fiddlers Green Formation Collected on 5/13/2022© Owen Yonkin 2022
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Just a note that James Cullison's 1944 monograph on the rocks and fauna of the upper Lower Ordovician of Missouri and Arkansas is now freely available for download or perusal at https://archive.org/details/paper-cullison-1944-the-stratigraphy-of-some-lower-ordovician-formations-of-the This publication has always been devilishly tough to get a hold of. A nice systematic paleontology section deals with the many gastropods and other mollusks as well as the less diverse brachiopods, trilobites, and sponges. The monograph covers the following formations as currently accepted in Missour-
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- cephalopoda
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A friend uncovered this oddball today in the Late Ordovician (Sandbian) of eastern Missouri, in the uppermost part of the Plattin Group (a Platteville equivalent) or possibly the lowermost part of the Decorah Group. He's been finding a lot of weird fossils in that zone, including articulated cyclocystoids, but this one I'm at a loss on. Too wobbly for an orthoconic cephalopod, too much space between calcite elements for a crinoid column. Given the size, is machaeridian a possibility? What other ideas should we be considering?
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- annelida
- echinodermata
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Hi I've been gifted a plate with different ammonites in it. As it comes from a second hand store, there's no record for provenance,age and all other infos. I'd appreciate any help with the identification. Thanks Back of plate:
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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
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- biostratigraphy
- cambrian
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Hello, I am a new user and I recently picked up this ammonite fossil at a local rock & fossil shop. I got it for $80, and it has not been worked on much, only one side has been mostly cleared of rock. I have tried to use various sources on the internet and galleries, but I am new to this and have not been able to identify this fossil myself. It is decently large, and about 8-9 inches across at its longest. There are lots of deep ridges in the shell, but each ridge as far as I can tell is uniform, with no protrusions. Unfortunately, I do not know the origin of this fossil, or the type of ro
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I was seven miles south of Glendive; Montana on October 12, 2018; time 1400; exploring a drainage cut into the Pierre Shale Formation while looking for concretions. This scaphites was partly exposed on the surface of a concretion. Later, I removed most of the surrounding matrix.
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- campanion
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here 9,1 MB
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- cephalopoda
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Not quite sure what is going on here. In my class we were handed a box of fossils and this was in it. My theory is that its the body of a nautilus. Let me know what your thoughts are.
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Sorry about the slight blur around the edges on the photos. I had to much sun light peeping into my prepping shed. I've attached a relevant PDF for the location of the find as well. Goniatites species unknown at present ( any further help would be great ) Description: Fossil Goniatites collected from the Carboniferous Limestone, of Early Carboniferous age from the Cowlow Nik Goniatite Bed in Cowlow Nik, west of Castleton, Derbyshire (Midland England). Period: Carboniferous (Early), Carboniferous Limestone Rock: Carboniferous
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Hello, I wonder if anyone have seen something like this. Never mind the cephalopod ID, I'm interested in the scar-like structures on them. Here is cephalopod from early devonian of Czech Republic: and second one from different locality, but similar age: Here's one from the shales of late ordovician (Bohdalec formation, I think this corresponds with lower Katian) Not sure if the devonian and ordovician "scars" are the same thing, but they do look similar. At first I thought it was a bryozoan colony, but the shape is too regular. My best guess is it might be traces of some brachiopod s
