Helodus didymus
M'Coy, 1855
Classification: Holocephali Helodontiformes Helodontidae
Reference of the original description
A synopsis of the classification of the British Palæozoic rocks, with a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge. In Sedgwick, A.(ed), A synopsis of the classification of the British Palæozoic rocks, London :J.W. Parker and Son; [etc.] 1855.
A synopsis of the classification of the British Palæozoic rocks, with a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge. In Sedgwick, A.(ed), A synopsis of the classification of the British Palæozoic rocks, London :J.W. Parker and Son; [etc.] 1855.
Synonyms / new combinations and misspellings
Helodus cf. didymus, Lophodus didymus
Helodus cf. didymus, Lophodus didymus
Types
Helodus didymus
Helodus didymus
Description:
Citation: Helodus didymus M'Coy, 1855: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 01/2025
Remarks
shark-references Species-ID=11648;
synonym of Psephodus magnus after Woodward (1889) p.177 [2593]
shark-references Species-ID=11648;
synonym of Psephodus magnus after Woodward (1889) p.177 [2593]
References
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1
Carboniferous Fishes of Alabama, Helodus version 1. In J.A. Ebersole (ed.), Fossil Fishes of Alabama. McWane Science Center, Birmingham, Alabama 2(18), 1–4
DOI: 10.69737/SJWW3698
On the fossil fishes of the Carboniferous Limestone Series of Great Britain. Scientific Transactions of the Royal Dublin Society, Series 2, 1: 327–548
A synopsis of the classification of the British Palæozoic rocks, with a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge. In Sedgwick, A.(ed), A synopsis of the classification of the British Palæozoic rocks, London :J.W. Parker and Son; [etc.] 1855.
Die Fische der Vorwelt, mit steter Berücksichtigung der lebenden Fische. Erster Band: Wirbelthiere. Dritte Abtheilung: Fische: i–xii, 1–467. Leipzig (Brockhaus).
A stratigraphical list of British fossils; arranged under the principal division of the British strata, with a few elementary remarks on their character and localities. London, Reeve Brothers, Strand, 132pp
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
Synoptical Table of British Fossil Fishes, Arranged in the Order of the Geological Formations. Report of the British Association for the Advancement of Science, 13th Meeting (1843), 194–207
Rise and diversification of chondrichthyans in the Paleozoic. Paleobiology, in press
DOI: 10.1017/pab.2024.1
Carboniferous Fishes of Alabama, Helodus version 1. In J.A. Ebersole (ed.), Fossil Fishes of Alabama. McWane Science Center, Birmingham, Alabama 2(18), 1–4
DOI: 10.69737/SJWW3698
On the fossil fishes of the Carboniferous Limestone Series of Great Britain. Scientific Transactions of the Royal Dublin Society, Series 2, 1: 327–548
A synopsis of the classification of the British Palæozoic rocks, with a systematic description of the British Palæozoic fossils in the Geological museum of the University of Cambridge. In Sedgwick, A.(ed), A synopsis of the classification of the British Palæozoic rocks, London :J.W. Parker and Son; [etc.] 1855.
Die Fische der Vorwelt, mit steter Berücksichtigung der lebenden Fische. Erster Band: Wirbelthiere. Dritte Abtheilung: Fische: i–xii, 1–467. Leipzig (Brockhaus).
A stratigraphical list of British fossils; arranged under the principal division of the British strata, with a few elementary remarks on their character and localities. London, Reeve Brothers, Strand, 132pp
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
Synoptical Table of British Fossil Fishes, Arranged in the Order of the Geological Formations. Report of the British Association for the Advancement of Science, 13th Meeting (1843), 194–207
