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Heteroptychodus information


Heteroptychodus
Temporal range: Early Cretaceous
PreꞒ
O
S
D
C
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Pg
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Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Hybodontiformes
Genus: Heteroptychodus
Yabe and Obata, 1930
Species
  • Heteroptychodus chuvalovi
  • Heteroptychodus kokutensis
  • Heteroptychodus steinmanni

Heteroptychodus is an extinct genus of hybodont that lived in Asia during the Early Cretaceous period. It had low, rounded durophagous teeth that are covered in ridges. Species have been reported from Japan, Mongolia, Malaysia, Thailand, Southern China, and possibly Kyrgyzstan. Fossils have been found in freshwater environments.[1]

  1. ^ Teng, Yu He; Sone, Masatoshi; Hirayama, Ren; Yoshida, Masataka; Komatsu, Toshifumi; Khamha, Suchada; Cuny, Gilles (2019-01-02). "First Cretaceous fish fauna from Malaysia". Journal of Vertebrate Paleontology. 39 (1): e1573735. doi:10.1080/02724634.2019.1573735. ISSN 0272-4634.

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Heteroptychodus

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Heteroptychodus is an extinct genus of hybodont that lived in Asia during the Early Cretaceous period. It had low, rounded durophagous teeth that are...

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List of prehistoric cartilaginous fish genera

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Ward, 2004 †Heteroptychodus Yabe & Obata, 1930 †Heteroptychodus kokutensis Cuny, Laojumpon, Cheychiw & Lauprasert, 2010 †Heteroptychodus steinmanni Yabe...

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Hybodontiformes

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Hamiltonichthys Gansuselache Dabasacanthus Teresodus Diablodontus Gunnellodus? Heteroptychodus Lissodus Form genera Palaeoxyris (genus used for the egg capsules of...

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Sao Khua Formation

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the Sao Khua Formation Genus Species Presence Material Notes Images Heteroptychodus H. steinmanni Over 130 fragmentary teeth. A hybodont Hybodontiformes...

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Khok Kruat Formation

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Ratchathani province. 5 teeth, most of them incomplete. A hybodontiform. Heteroptychodus H. aff. steinmanni Khok Pha Suam locality, Ubon Ratchathani province...

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Phu Kradung Formation

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Acrodus A. kalasinensis Kalasin province. Teeth. A hybodontiform. Heteroptychodus H. cf. H. kokutensis One almost complete tooth and 20 fragmentary crowns...

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