Helodus simplex

Agassiz, 1838


Classification: Holocephali Helodontiformes Helodontidae

Reference of the original description
Agassiz, L. (1838)
Recherches sur les poissons fossiles, 11th livraison (November 1838). Petitpierre et Prince (text) and H. Nicolet (plates), Neuchâtel, vol. 3: [73]-140, pl. 1a, 8a, 8b, 15, 17, 19, 20, 24, 25b, 30, 31, 32, 33, 34, 35, 39, 40.

Synonyms / new combinations and misspellings
Helodus cf. simplex

Types
Helodus simplex



Description:


Citation: Helodus simplex Agassiz, 1838: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 04/2024

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References
Johanson, Z. & Underwood, C. & Coates, M.I. & Fernandez, V. & Clark, B. & Smith, M.M. (2021)
The stem-holocephalan Helodus (Chondrichthyes; Holocephali) and the evolution of modern chimaeroid dentitions. In: Ancient Fishes and their Living Relatives: a Tribute to John G. Maisey. Alan Pradel, John S. S. Denton & Philippe Janvier (eds.): pp. 205-214, Verlag Dr. Friedrich Pfeil, München, Germany
Coates, M.I. & Tietjen, K. & Johanson, Z. & Friedman, M. & Sang, S. (2021)
The cranium of Helodus simplex (Agassiz, 1838) revised. In: Ancient Fishes and their Living Relatives: a Tribute to John G. Maisey. Alan Pradel, John S. S. Denton & Philippe Janvier (eds.): pp. 193-204, Verlag Dr. Friedrich Pfeil, München, Germany
Johanson, Z. & Manzanares, E. & Underwood, C. & Clark, B. & Section, V.F. & Smith, M. (2020)
Evolution of the Dentition in Holocephalans (Chondrichthyes) Through Tissue Disparity. Integrative and Comparative Biology: 60(3): 630–643
DOI: 10.1093/icb/icaa093
Richards, K.R. & Sherwin, J.E. & Smithson, T.R. & Bennion, R.F. & Davies, S.J. & Marshall, J.E.A. & Clack, J.A. (2018)
Diverse and durophagous: Early Carboniferous chondrichthyans from the Scottish Borders. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 108(1), 67–87
DOI: 10.1017/s1755691018000166
Itano, W.M. & Lambert, L.L. (2018)
A new cochliodont anterior tooth plate from the Mississippian of Alabama (USA) having implications for the origin of tooth plates from tooth files. Zoological Letters, 4, Article 12
DOI: 10.1186/s40851-018-0097-8
Brazeau, M.D. & Friedman, M. (2014)
The characters of Palaeozoic jawed vertebrates. Zoological Journal of the Linnean Society, 170(4), 779–821
DOI: 10.1111/zoj.12111
Brusatte, S.L. (2007)
Pennsylvanian (Late Carboniferous) chondrichthyans from the LaSalle Limestone Member (Bond Formation) of Illinois, USA. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 244(1), 1–8
DOI: 10.1127/0077-7749/2007/0244-0001
Lund, R. & Garton, E.R. & Weishampel, D.B. (1979)
Fossil vertebrates of the Pennsylvanian system of West Virginia. In 9th Int. Congr. Carboniferous Stratigr. and Geol., Field Trip No. 1, AGI Selected Guidebook Series No.1, 105–107
Kuhn, O. (1967)
Die vorzeitlichen Fischartigen und Fische. Die Neue Brehm-Bücherei Heft 384. A. Ziemsen Verlag, Wittenberg.
Van der Heide, S. (1943)
La faune ichthyologique du Carbonifère supérieur des Pays-Bas. Mededeelingen van de Geologische Stichting, Serie C, IV, 3, No. 2, 65 pp. 4 pls.
Moy-Thomas, J.A. (1936)
On the structure and affinities of the Carboniferous cochliodont Helodus simplex. Geological Magazine, 73, 488–503
Traquair, R.H. (1903)
On the distribution of fossil fish-remains in the Carboniferous rocks of the Edinburgh district. Transactions of the Royal Society of Edinburgh, 40(3), 687–707
DOI: 10.1017/S0080456800034761
Woodward, A.S. (1889)
Catalogue of the fossil fishes in the British Museum. Part. I. British Museum (Natural History): 474 p., fig., 17 pl.
Hancock, H. & Atthey, T. (1872)
A few Remarks on Dipterus and Ctenodus, and on their Relationship to Ceratodus Forsteri, Krefft. Transactions of the Natural History Society of Northumberland, Durham, and Newcastle–upon–Tyne, 4(17), 397–423
Salter, J.W. (1861)
On the fossils of the South Wales. Memoirs of the Geological Survey, Part 3, Irons ores of South Wales: 219-239
Giebel, C.G. (1848)
Die Fische der Vorwelt, mit steter Berücksichtigung der lebenden Fische. Erster Band: Wirbelthiere. Dritte Abtheilung: Fische: i–xii, 1–467. Leipzig (Brockhaus).
Pictet, F.-J. (1845)
Traité élémentaire de paléontologie; ou, Histoire naturelle des animaux fossiles, considérés dans leurs rapports zoologiques et géologiques. Paris, Langlois et Leclerq, 1844-46, vol. II, pp. 259-310
Agassiz, L. (1838)
Recherches sur les poissons fossiles, 11th livraison (November 1838). Petitpierre et Prince (text) and H. Nicolet (plates), Neuchâtel, vol. 3: [73]-140, pl. 1a, 8a, 8b, 15, 17, 19, 20, 24, 25b, 30, 31, 32, 33, 34, 35, 39, 40.