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Showing results for tags 'devonian'.
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Taxonomy from Fossilworks.com. Alternative combination: Aspidosoma roemeri. Description from Südkamp, 2017, p. 134: "Encrinaster has many characteristics common with Euzonosoma. The differences are as follows. The elongated arms are strap-like, broadening distally until the disc edge and then tapering evenly as comparatively narrow arms to the arm tips. The interradial disc outline is convex to straight. The marginals are flat overlapping plates. The ambulacrals are more delicate, less rectangular than in Euzonosoma, and more sub-triangular in oral view." Identified by oilshale using Südkamp 2017. References: Schöndorf, F. (1910) Palaeozoische Seesterne Deutschlands. II. Die Aspidosomatiden des deutschen Unterdevon. Palaeontographica 57:1-63. Lehmann, W.M. (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung 21:1-160 Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
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- aspidosoma
- bundenbach
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I have this unnamed moroccan tilobite in my collection , now i want to know If somebody knows the exact species. I've done a little bit of research and found two species that match very well : Holladorps and Minicryphaeus Quaterspinosus . Or i am completly wrong and its a complete different species Length of the trilobite : 5 cm Found in : Erfoud, morocco
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All material was found in a lag deposit layer on SW side of highway Rt120. SYSTEMATIC PALEONTOLOGY SARCOPTERYGII Romer, 1955 TETRAPODOMORPHA Ahlberg, 1991 MEGALICHTHYIDAE Hay, 1902 Diagnosis—Osteolepiform distinguished by a cosmine cover to dermal bones in combination with a premaxillary tusk that interrupts or lies lingual to the premaxillary marginal tooth row, contact between the subopercular and the second submandibular bones, and a distinct rostral process of the supratemporal that is without cosmine cover (Borgen and Nakrem, 2016). Diagnosis—A species of Megalichthys that is distinguished from previously described species by the presence of a pineal series of bones, the presence of a triangular principal gular, and the lack of sensory canal pores on the postparietal.
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- catkill fm
- devonian
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I am fortunate enough to have such a huge amount of Middle Devonian Givetian material that I thought it best to put the older Middle Devonian stage, the Eifelian, in its own thread. There are some spectacular fossils here as well though! I thought a good place to start would be in the Formosa Reef, which I believe is quite early Eifelian. This tabulate coral and stromatoporoid reef continues similar complexes found from the Middle Silurian, see my: https://www.thefossilforum.com/topic/84678-adams-silurian/page/3/ thread from page three onwards for details. All these Formosa Reef specimens come from a delightful gift from my good friend @Monica who is a tad busy with life at the moment but is fine and still thinking of the forum. This outcrop can be found on Route 12 near Formosa/Amherstburg, Bruce County, Ontario, Canada. This beautiful-looking specimen came to me with only a third of it revealed but I managed to get it this far after nine days of painful pin prepping. Monica found another one and posted it for ID here: https://www.thefossilforum.com/topic/105528-weird-circular-imprints-formosa-reef-lower-devonian/#comment-1172285 The specimen was identified by another Canny Canadian @Kane to be the little stromatoporoid sponge Syringostroma cylindricum. Hardly a reef-builder, but gorgeous nonetheless. It does have a little thickness to it, but not much. Beautiful! Pretty thin, actually. I love this Monica, thank you!
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- acanthopyge
- acanthopyge contusa
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From the album: Moscow formation, Devonian, Erie co. New York, USA
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From the album: Moscow formation, Devonian, Erie co. New York, USA
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From the album: Moscow formation, Devonian, Erie co. New York, USA
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From the album: Moscow formation, Devonian, Erie co. New York, USA
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From the album: Moscow formation, Devonian, Erie co. New York, USA
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From the album: Devonian, Catskill Fm., Pennsylvania USA
Lobe-finned fish scale -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Positive and negative of an unidentified plant -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Lobe-finned fish scale -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Lobe-finned fish tooth -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Lobe-finned fish tooth-
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- catskill fm
- devonian
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From the album: Devonian, Catskill Fm., Pennsylvania USA
Plant matter from this site is poorly preserved and often needle like leaves or stem fragments. -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Plant matter from this site is poorly preserved and is often just leaves similar to pine needles or stem fragments -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Placoderm armor -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Placoderm armor -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Early freshwater shark tooth -
From the album: Devonian, Catskill Fm., Pennsylvania USA
Early freshwater shark tooth-
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- catskill fm
- devonian
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From the album: Devonian, Catskill Fm., Pennsylvania USA
Early freshwater shark tooth-
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- catskill fm
- devonian
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From the album: Devonian, Catskill Fm., Pennsylvania USA
Predatory lobe-finned fish scale -
I brought out a bag of Devonian brachiopods from the Cerro Gordo to clean up this week when I noticed this unknown in amongst the shells. At first I thought geologic but if you look close, it appears to have six sided symmetry. So is this some sort of echinoderm??
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- cerro gordo
- devonian
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Looking for some experts on these attached images. These are just ones I can’t figure out. Scale in metric. I had a successful hunt at the end of 2023. Soon I’ll be adding a photo album of this and some of my other finds from various locations. Overall, I found Ageleodus pectinatus teeth, Hyneria lindae teeth and scales, Megalichthys mullisoni scales, Langlieria radiatus scales, Holoptychius sp. scale, acanthodian fish spine, Phyllolepis rossimontina armor, Turrisaspis elektor armor, and plant leaves and stems. EDIT: Location - Clinton County, PA.
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- armor plates
- bothriolepis
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From the album: Fossil Collection: DC Area and Beyond
Bivalvia Deep Springs Road Quarry, NY Windom Formation Middle Devonian
