dorsal spine of Cladoselache. The neurocranium and jaws of Cladoselache
Read Online

dorsal spine of Cladoselache. The neurocranium and jaws of Cladoselache

  • 818 Want to read
  • ·
  • 68 Currently reading

Published by Cleveland Museum of Natural History in Cleveland .
Written in English


  • Cladoselache,
  • Fishes, Fossil -- Ohio

Book details:

Edition Notes

Other titlesNeurocranium and jaws of Cladoselache.
Statementby John Edward Harris.
SeriesScientific publications of the Cleveland Museum of Natural History -- v. 8, no. 1
ContributionsCleveland Museum of Natural History.
The Physical Object
Pagination12 p. :
Number of Pages12
ID Numbers
Open LibraryOL20372422M

Download dorsal spine of Cladoselache. The neurocranium and jaws of Cladoselache


Cladoselache therefore probably seized prey by the tail and swallowed it whole. Its sturdy but light-weight fin spines were composed of dentine and enamel. Cladoselache also had a blade-like structure which was positioned in front of the dorsal fins. These anatomical features made swimming easier and : Chondrichthyes. Subclass Chondrichthyes. Infraclass Elasmobranchii. Authors; Authors and affiliations; J. A. Moy-Thomas 1. The dorsal spine of Cladoselache 2. The neurocranium and jaws of Cladoselache. Scient. pubis Cleveland Mus () Jaws and teeth of American xenacanth sharks. J. Paleont, 26, – Google Scholar. Jaekel, O. () Neue Author: J. A. Moy-Thomas.   The fossil selachian fishes Palaeospinax Egerton, and Nemacanthus Agassiz, The dorsal spine of Cladoselache. II. The neurocranium and jaws of Cladoselache. Scientific Publications. Cleveland Museum of Natural History, 8: 1 Cited by: The mouth of Cladoselache was not under slung like in today‭’‬s sharks but instead more closely resembled the mouths of other fish.‭ ‬The jaw joint appears to have been quite weak,‭ ‬but was supported by powerful muscles,‭ ‬something that would have enabled Cladoselache to tackle larger prey.‭ ‬The number of gill slits varies between five and seven depending upon the .

Like the latter, it appears to have had a long otic region on the neurocranium, a heterodont dentition and two dorsal finspines, but it differed in having longer, deeper jaws and a . The braincase and jaws of a Devonian ‘acanthodian’ and modern gnathostome origins Martin D. Brazeau1 Modern gnathostomes (jawed vertebrates) emerged in the early photograph of neurocranium, tooth row and anterior part of The braincase and jaws of a Devonian ‘acanthodian’ and modern gnathostome origins. català: Cladoselache Deutsch: Cladoselache English: Cladoselache español: Cladoselache 日本語: クラドセラケ 中文: 裂口鯊.   The Devono-Carboniferous chondrichthyan Stethacanthus is best known for its striking 'spine-brush' complex. Here we provide the first detailed description of the neurocranium, using several well-preserved specimens from Bearsden, Scotland (Serpukhovian; Pendleian E1).Cited by:

Most of the best fossil specimens of Cladoselache (see illustration) are from the Upper Devonian Cleveland Shales and include complete individuals of around 1 m ( ft) in length. Several of these have mineralized traces of soft tissues, including much of the superficial jaw and gill musculature and even apparent traces of internal organs such. this how the world looked like when the Cladoselache lived. The earthquake must have moved some rocks because, after the earthquake I saw a fossil of some I measured it,"wow!" 6 feet long! how to pronounce Cladoselache: CLAY . The floor of the braincase is comparatively flat in Dalatias (Shirai, pl. 8), but in other dalatiids there may be a very deep interorbital septum below the cranial cavity (e.g., Squaliolus; fig. 3C, D).In this form, the preorbital muscle has an extensive origin along the entire ventral part of the septum and is inserted on the lower jaw anterior to the mandibular adductor ().Cited by: : Cladoselache shark of the Paleozoic Era Cladoselache is one of the first primitive predatory sharks that lived in the seas of North America in the Devonian Period Poster Print (14 x 14): Posters & Prints.