'Feathered' Sharks Survived The Deadliest Ocean In Earth's History

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Published on July 27, 2024 2:00:55 PM ● Video Link: https://www.youtube.com/watch?v=uSkDP0spaMA

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Sharks have been around for a long time. They have technically been around longer than true trees have – originating in the Ordovician period, while the green woody giants emerged in the middle Devonian. Unfortunately, their cartilaginous skeletons decay to mostly nothing when they die under most circumstances. Only hard parts get preserved. This has left us with a slew of tantalizing bits and pieces of some of the weirdest things to slide through the water. One of those mysterious enigmas of the cartilaginous fish fossil record is the porcupine eel shark – Listracanthus.
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✅ RESEARCH ✅
Bolton, H. (1896). On the occurrence of the genus Listracanthus in the English Coal measures. Geological Magazine, decade 4, 3, 424–426.

EDWARDS, W. & STUBBLEFIELD, C. J. 1948. Marine Bands and other marker horizons in relation to the sedimentary cycles of the middle coal measures of Nottinghamshire and Derbyshire. Quarterly Journal of the Geological Society of London 412, 209–60.

HIBBARD, C. W. 1938. A new fish Listracanthus eliasi, from the Pennsylvanian of Nodaway County, Missouri. The University of Kansas Science Bulletin 25, 169–71.

KÖNEN, A. VON 1879. Die Kulm−Fauna von Herborn. Neues Jahrbuch für Mineralogie 1879, 309–46.

Mutter, R.J. & Neuman, A.G. (2006). An enigmatic chondrichthyan with Paleozoic affinities from the Lower Triassic of western Canada. Acta Palaeontologica Polonica, 51(2), 271–282.

NEWBERRY, J. S. 1873. Descriptions of fossil fishes. Report of the Geological Survey of Ohio 1(2), 245–355.

NEWBERRY, J. S. 1875. Descriptions of fossil fishes. Report of the Geological Survey of Ohio 2(2), 1–64.

NEWBERRY, J. S. & WORTHEN, A. H. 1870. Part II – Paleontology of Illinois – Section I – Description of fossil vertebrates. In Geology and Paleontology (ed. A. H. Worthen) 6, 345–74. Authority of the Legislature of Illinois, Chicago.

SCHMIDT, W. 1950. Uber Listracanthus woltersi n. sp. und einen anderen neuen fishrest aus dem tiefsten Westfal B von Prosper II bei Bottrop/Westfalen. Zeitschrift der Deutschen Geologischen Gessellschaft 101, 44– 58.

WOODWARD, A. S. 1891. Catalogue of the Fossil Fishes in the British Museum (Natural History), Part 1. British Museum (Natural History), London, xlvii + 474 pp.

WOODWARD, A. S. 1903. On the Carboniferous ichthyodurolite Listracanthus. Geological Magazine 10, 486–8.

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