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Showing results for tags 'rana'.
Found 8 results
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From the album: Fossil Collection: DC Area and Beyond
Eldredgeops (Phacops) rana (Enrolled) Penn Dixie Fossil Park & Nature Preserve, NY Moscow Formation Middle Devonian -
From the album: Fossil Collection: DC Area and Beyond
Eldredgeops (Phacops) rana Gore, VA (Gore Grocery) Mahantango Formation Middle Devonian -
From the album: Fossil Collection: DC Area and Beyond
Eldredgeops (Phacops) rana Penn Dixie Fossil Park & Nature Preserve, NY Moscow Formation Middle Devonian -
From the album: Prae's Collection (REMPC)
REMPC A0019 Trilobite - Eldredgeops rana Middle Devonian Windom mb., Moscow Fm., Western New York State, USA-
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- devonian
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This year has not had the volume of fossil outings that I would like to see. The weather here in Southern Ontario, Canada has been horrible. Rain, heat and unbearable humidity. Some of my fossil buddies have a big excursion and BBQ to follow planned for today but I could not join in due to plans from "The One Who Must Be Obeyed" otherwise known as "The Wife". So on the spur of the moment since the weather Sunday is going to be awesome I am going to Penn Dixie tomorrow Sunday July 8th with my buddy Jim. Jim is another Canadian Human Backhoe like Kane. If any of you forum people are in the vicinity and want to join in you are more than welcome. Devonian Digger Cannot make it as he is off doing family stuff so my limited expertise will have to suffice. I have been known to have reasonable success at the site ...lol Seriously though if you can join us what I can guarantee you is that you will work hard but you will go home with complete trilobites perhaps even multiples. It makes a world of difference to go with someone that sort of knows what they are doing and that brings the right equipment. Better yet if you find something really special (not a Brach Kane) and treat me nice I might even prep it for you. Hope to see some of you there.. I will be the Homeless looking old geezer in the fossil forum Tee Shirt and Jurassic Park hat struggling to move blocks that are far too big for me.... Regardless I will try to post some pics in this thread of the excursion.
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Well as of late I don't seem to be prepping many for me, although I have had some stunning fossils pass by my workshop in the last few months I know these are common as dirt. I found this little gem (dimension 27.17 mm x 17.26 mm) on Monday May 22 at Penn Dixie. So I took time this morning while working on a stunning greenops for someone else to quickly have a go at this little beauty for myself. I will post something on the greenops prep in a bit. It is going to be a nice one. A trilobite does not have to be rare to be beautiful. As far as I can recall the phacops rana ( I know that is not the correct name but it probably was when I found my first one) was the first complete trilobite I ever found, so they will always have a special place for me. The mind gets fuzzy with old age as the senility begins to creep in. This one was from Penn Dixie and took a whopping 12 minutes to prep. Other than the tip of the cephalon (head) everything was buried. Buried trilos always have the best potential to be pristine. Came out pretty nice for a quickie. Was prepped on a Comco air abrasion unit with no airscribing, using 40 micron dolomite at 25 PSI with a .030 and .015 inch nozzle under a Olympus scope at 10x magnification. No restoration, no gluing, no coatings.
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- eldregeops
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Taxonomy from GBIF.org. Diagnosis by Špinar 1980, p. 5 (translated from German by oilshale): "Medium to large frog (see Table 5). The species is characterized by following characteristics: 1. small skull in the shape of a Gothic arch. Its length is not quite 1/5 of the body length (in the species Rana temporaria almost 1/4 of the body length). 2. ossa fronto-parietalia orocaudally elongated with concurrent edges on thesurface of bone; mutually trough-shaped incurved and caudally broadened. 3. pars medialis ossis nasalis broad, irregularly triangular, process laterahs of same bone long. 4. maxilla toothed up to 2/3 of its length. 5. maxillary arch complete; processus frontalis of maxillary short, broad, truncated; lateral process not reaching nasal. 6. quadratojugals long. 7. Vertebral column long, consisting of 9 long, mostly procoelous vertebrae. Ribs absent. They are fused with processus transversi. 8. processus transversus of 3rd vertebra most directed laterocaudally. 9. processus transversus of sacral vertebra cylindrical, narrow, forming an angle of 35-42° with transverse plane. 10. urostylus conspicuously narrow, long, rod-shaped, with 2 articular pits on the proximal end. 11. shoulder girdle firmistern. 12. cleithrum well ossified, broad; margo scapularis and margo caudalis forming an angle of about 31 -32°. 13. scapula broad, strong, even broader to margo cleithralis. 14. ilium with low, bean-shaped tuber superius, as well as low, long crest (crista ossis ischii). 15. femur shorter than os cruris. Total length of both bones less than length of body - measured from oral end of intermaxillare to the caudal end of the ischium. 16. calcaneus bent through on the tibial side. 17. webbing between toes of hind foot well developed. In the 4th toe it extends to middle of 3rd phalanx. 18. hind limbs conspicuously dark striped." Identified by oilshale. References: Špinar, Z. V. (1980): Fossile Raniden aus dem oberen Pliozän von Willershausen (Niedersachsen). Stuttgarter Beiträge zur Naturkunde / Ser. B, Nr. 53, pp. 1-53, 9 Taf., 25 Abb., 8 Tab.
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I was posting these pictures in a previous thread from my first cephalon that I prepped myself. I started this little guy as a practice piece until I suddenly discovered he had a complete body hiding in the rock. I've been uploading pictures step-by-step as I work on it. Figured I would share them as a separate topic.
