Ctenacanthus tumidus
WebCtenacanthus: [noun] a genus of Upper Devonian and Lower Permian sharks related to Cladoselache and known chiefly from its very stout fin spines. WebBackground Lupus erythematosus tumidus (LET) is characterized clinically by erythematous, succulent, edematous, nonscarring plaques in sun-exposed areas. Results of histological examination show perivascular and periadnexal lymphocytic infiltration and interstitial mucin deposition. The main differential diagnoses are polymorphous light …
Ctenacanthus tumidus
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WebCtenacanthus depressus NEWBERRY, 1897 Ctenacanthus gurleyi NEWBERY, 1897 Dactylus retus NEWBERRY, 1897 Edestus lecontei DEAN, 1897 ... Rhynchosaurus tumidus MORTON, 1897. Get Ctenerpeton primum COPE, 1897 . Gadow, H. F., 1897, Remarks on the supposed relationship of birds and Dinosaurs: Proceedings of the … Ctenacanthus (from Greek: κτείς kteis, 'comb' and Greek: ἄκανθα akantha, 'spine') is an extinct genus of ctenacanthiform chondrichthyan. Remains have been found in the Bloyd Formation in Arkansas, United States (Carboniferous period) and in South America. See more • Ctenacanthus buttersi St. John & Worthen, 1883 • Ctenacanthus chemungensis Claypole, 1885 • Ctenacanthus concinnus Newberry, 1875 See more • List of prehistoric cartilaginous fish genera See more • Fossil Sharks of the Rocky Mountains: Ctenacanthus and other Chondrichthyan Spines and Denticles. Wayne Itano, Boulder, Colorado, Karen Houck and Martin Lockley, University of Colorado, Denver See more
WebJuvenile in Panama. The chestnut-mandibled toucan is a resident breeder in moist lowland forest. The 2–4 white eggs are laid in an unlined cavity high in a decayed section of a … WebThis page was last edited on 26 November 2024, at 09:24. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply.By ...
WebJul 9, 2005 · Ctenacanthus sp. is represented by a single fin spine at Red Hill. More complete fossils have been recovered from the Early Carboniferous deposits in Scotland. The Scottish sharks were relatively small (50 cm), but extrapolation from the spine found at Red Hill suggest that this Late Devonian fish was substantially longer. WebWhat is Ctenacanthus? Ctenacanthus is an extinct genus of ctenacanthiform chondrichthyan. Ctenacanthus Explained. Ctenacanthus (from Greek, Modern (1453-);: κτείς, 'comb' and Greek, Modern (1453-);: ἄκανθα, 'spine') is an extinct genus of ctenacanthiform chondrichthyan.Remains have been found in the Bloyd Formation in …
WebATW030919. Ctenacanthiformes: Ctenacanthus + modern sharks. Most authors probably define this taxon as Ctenacanthus > modern sharks. However, that definition leaves the contents of the group rather vague. …
WebCtenacanthus angustus was reported from the Subcarboniferous Berea Grit (Late Devonian Berea Sandstone) in Ohio and Lewis County, Kentucky, by Newberry (1889, p. 181). This is surprising because the Berea has few fossils. It remains a valid genus (Maisey, 1981, 1984). Ctenacanthus coxianus was reported from the Keokuk Limestone in Missouri and ... tssa path 1WebApr 15, 2024 · Hodnett et al. (2024) described a new genus of ctenacanthiforms and proposed that this order should include four to five families or superfamilies. They presumed the combination the genera... tssa officeWebOccurrence of a Ctenacanthoid Shark Spine from the Upper Devonian of North Central Iowa. Proc. Iowa Acad. Sci. 81(2): 56-60, 1974. Although a diverse, invertebrate fauna is characteristic of the Upper Devonian, Lime Creek Formation, in north central Iowa, fossil fish remains are sparse. tssa pay invoiceWebThis page was last edited on 12 August 2024, at 16:10. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply.By ... tssa piping flow charthttp://devoniantimes.org/who/pages/ctenacanthus.html phison ps2251-19WebCtenacanthus amblyxiphias Cope, 1891; Ctenacanthus buttersi St. John & Worthen, 1883; Ctenacanthus chemungensis Claypole, 1885; Ctenacanthus concinnus Newberry, 1875 ... tssa path 2WebCtenacanthus depressus NEWBERRY, 1897 Ctenacanthus gurleyi NEWBERY, 1897 Dactylus retus NEWBERRY, 1897 Edestus lecontei DEAN, 1897 ... Rhynchosaurus … phison ps2251-70 mptool