Ptychodus acutus
Agassiz, 1843 (nomen nudum)
Classification: Elasmobranchii incert. sedis Ptychodontidae
	Reference of the original description
	
	
Recherches sur les poissons fossiles, 15th and 16th livraisons (March 1843). Jent and Gassmann, Soleure (text) and H. Nicolet, Neuchâtel (planches). – vol. 3: [i]-[iv], 157-390, 382*-382**, 1–32, [33]-[34], pl. 1, 18, 22, 22a, 22b, 26a, 38, 40b, 40c, 40d, 45, 47
Recherches sur les poissons fossiles, 15th and 16th livraisons (March 1843). Jent and Gassmann, Soleure (text) and H. Nicolet, Neuchâtel (planches). – vol. 3: [i]-[iv], 157-390, 382*-382**, 1–32, [33]-[34], pl. 1, 18, 22, 22a, 22b, 26a, 38, 40b, 40c, 40d, 45, 47
	Types
Ptychodus acutus
	
	
	
Ptychodus acutus
Description:
Citation: Ptychodus acutus Agassiz, 1843 (nomen nudum): In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2025
		Remarks
shark-references Species-ID=5332;
		
		shark-references Species-ID=5332;
		References
		
	
		
		
			
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
	
	
		
		
			
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
	
	
		
		
			
Recherches sur les poissons fossiles, 15th and 16th livraisons (March 1843). Jent and Gassmann, Soleure (text) and H. Nicolet, Neuchâtel (planches). – vol. 3: [i]-[iv], 157-390, 382*-382**, 1–32, [33]-[34], pl. 1, 18, 22, 22a, 22b, 26a, 38, 40b, 40c, 40d, 45, 47
	
	
		
		
			
Catalogue of Fossil Fish in the Collections of the Earl of Enniskillen, F.G.S. and Sir Philip Grey Egerton, Bart., F.R.S. Annals and Magazine of Natural History, 7(46), 487–498
	
	
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
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
Recherches sur les poissons fossiles, 15th and 16th livraisons (March 1843). Jent and Gassmann, Soleure (text) and H. Nicolet, Neuchâtel (planches). – vol. 3: [i]-[iv], 157-390, 382*-382**, 1–32, [33]-[34], pl. 1, 18, 22, 22a, 22b, 26a, 38, 40b, 40c, 40d, 45, 47

Catalogue of Fossil Fish in the Collections of the Earl of Enniskillen, F.G.S. and Sir Philip Grey Egerton, Bart., F.R.S. Annals and Magazine of Natural History, 7(46), 487–498
				
				
    					
    					
    					
    					
                        
    					








