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Heteroptychodus

Chondrichthyes - Hybodontiformes - Hybodontidae

Taxonomy
Heteroptychodus was named by Yabe and Obata (1930).

It was assigned to Ptychodontidae by Cappetta et al. (2006); and to Hybodontinae by Cuny et al. (2010).

Synonymy list
YearName and author
1930Heteroptychodus Yabe and Obata
2006Heteroptychodus Cappetta et al.
2010Heteroptychodus Cuny et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classChondrichthyes
RankNameAuthor
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii()
orderHybodontiformes(Patterson 1966)
superfamilyHybodontoidea
familyHybodontidae()
subfamilyHybodontinae
genusHeteroptychodusYabe and Obata 1930

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Heteroptychodus Yabe and Obata 1930
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†Heteroptychodus kokutensis Cuny et al. 2010
†Heteroptychodus steinmanni Yabe and Obata 1930
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilec
Life habit: nektonicc
Diet: carnivorec
Created: 2004-08-17 13:49:23
Modified: 2009-12-13 03:31:01
Source: c = class, subp = subphylum
References: Wagner 2023, Carroll 1988

Age range: base of the Early/Lower Cretaceous to the top of the Aptian or 143.10000 to 113.20000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Tithonian - Berriasian149.2 - 137.05Thailand (Mukdahan) H. sp. (78978)
Early/Lower Cretaceous143.1 - 100.5Malaysia (Pahang) H. kokutensis (229084)
Valanginian - Barremian137.05 - 121.4Japan (Mie) H. sp. (52343)
Barremian125.77 - 121.4Japan (Gunma) H. steinmanni (229065)
Late/Upper Barremian125.77 - 121.4Thailand (Changwat) H. steinmanni (201767)
Late/Upper Barremian125.77 - 121.4Thailand (Udon Thani) H. kokutensis (116559) H. steinmanni (140552)
Late/Upper Barremian125.77 - 121.4Thailand (Sakon Nakhon) H. sp. (204916) H. steinmanni (79489)
Late/Upper Barremian125.77 - 121.4Thailand (Khon Kaen) H. sp. (117466)
Aptian121.4 - 113.2Thailand (Nakhon Ratchasima) H. steinmanni (99337)
Aptian - Albian121.4 - 100.5Thailand (Khon Kaen) H. steinmanni (224555)
Aptian - Albian121.4 - 100.5Thailand (Ubon Ratchathani) H. steinmanni, H. steinmanni (52346)
Aptian - Albian121.4 - 100.5Thailand (Nong Bua Lam Phu) H. sp. (237368)
Aptian - Albian121.4 - 100.5Thailand (Kalasin) H. steinmanni (97765)