Ptychodus atcoensis
Hamm & Cicimurri, 2011
Classification: Elasmobranchii incert. sedis Ptychodontidae
	Reference of the original description
	
	
Early coniacian (late cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group, north central Texas. Paludicola, 8(3), 107–127
Early coniacian (late cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group, north central Texas. Paludicola, 8(3), 107–127
	Types
Ptychodus atcoensis
	
	
	
Ptychodus atcoensis
Description:
Citation: Ptychodus atcoensis Hamm & Cicimurri, 2011: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 10/2025
		Remarks
shark-references Species-ID=11349;
		
		shark-references Species-ID=11349;
		References
		
	
		 
		
			
Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
	
	
		
		
			
Stratigraphic, Geographic, and Paleoecological Distribution of the Late Cretaceous Shark Genus Ptychodus within the Western Interior Seaway, North America. New Mexico Museum of Natural History and Science, Bulletin, 81, 1–94
	
	
		 
		
			
The first tooth set of Ptychodus atcoensis (Elasmobranchii: Ptychodontidae), from the Cretaceous of Venezuela. Swiss Journal of Palaeontology, 132(1), 69–75
DOI: 10.1007/s13358-013-0053-3
	
	
		 
		
			
Chondrichthyans from the Upper Cretaceous of Venezuela: Diversity and Palaeobiogeographic implications [Abstract]. In Schwarz, C. & Kriwet, J. (eds), 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th–10th, 2013, 13
	
	
		 
		
			
Early coniacian (late cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group, north central Texas. Paludicola, 8(3), 107–127
	
	
		 
		
			
New Data on the Occurrence and Distribution of Ptychodus from the Upper Cretaceous (Coniacian-Santonian) of Texas. Dallas Paleontological Society, Occasional Papers, 8: 1–31
	
	
	

Global impact and selectivity of the Cretaceous-Paleogene mass extinction among sharks, skates, and rays. Science, 379, 802–806
DOI: 10.1126/science.abn2080
Stratigraphic, Geographic, and Paleoecological Distribution of the Late Cretaceous Shark Genus Ptychodus within the Western Interior Seaway, North America. New Mexico Museum of Natural History and Science, Bulletin, 81, 1–94

The first tooth set of Ptychodus atcoensis (Elasmobranchii: Ptychodontidae), from the Cretaceous of Venezuela. Swiss Journal of Palaeontology, 132(1), 69–75
DOI: 10.1007/s13358-013-0053-3

Chondrichthyans from the Upper Cretaceous of Venezuela: Diversity and Palaeobiogeographic implications [Abstract]. In Schwarz, C. & Kriwet, J. (eds), 6th International Meeting on Mesozoic Fishes – Diversification and Diversity Patterns, Vienna, Austria August 4th–10th, 2013, 13

Early coniacian (late cretaceous) selachian fauna from the basal Atco Formation, lower Austin Group, north central Texas. Paludicola, 8(3), 107–127

New Data on the Occurrence and Distribution of Ptychodus from the Upper Cretaceous (Coniacian-Santonian) of Texas. Dallas Paleontological Society, Occasional Papers, 8: 1–31
 
				 
				 
    					 
    					 
    					 
    					 
                         
    					









