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Aztecodus

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Extinct genus of Cartilaginous fish
Aztecodus
Temporal range: Middle Devonian
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Aztecodus

Long & Young, 1995

Aztecodus is an extinct genus of Chondrichthyian from the Devonian period.[1] It is named for middle to late Devonian-aged Aztec Siltstone of southern Victoria Land, Antarctica which produces this genus. It currently contains a singular species, A. harmsenae. It is named for sedimentologist Dr. Fraka Harmsen. It has unique teeth which are broad with widely divergent cusps separated by a crenulated cutting edge.[2] Anareodus statei may be a junior synonym to this genus and species.[3]

References

[edit ]
  1. ^ "Fossilworks: Aztecodus". fossilworks.org. Retrieved 17 December 2021.
  2. ^ Long, John & Young, Gavin. Sharks from the Middle-Late Devonian Aztec Siltstone, southern Victoria Land, Antarctica Records of the Western Australian Museum 17: 287-308 (1995).
  3. ^ Burrow, Carole & Long, John & Trinajstic, Kate. (2009). Disarticulated acanthodian and chondrichthyan remains from the upper Middle Devonian Aztec Siltstone, Southern Victoria Land, Antarctica. Antarctic Science. 21. 71-88. 10.1017/S0954102008001521.
Genera of Chondrichthyes (including "acanthodians")
Gnathostomata
Chondrichthyes
    • see below↓
Altholepidiformes
Elegestolepidida
Elegestolepididae
Tchunacanthidae
Ischnacanthiformes
Acritolepidae
Ischnacanthidae
Podoliacanthidae
Poracanthodidae
Diplacanthiformes
Diplacanthidae
Acanthodiformes
"Mesacanthidae"
"Cheiracanthidae"
Acanthodidae
Howittacanthidae
"Climatiiformes"
and related taxa
"Climatiidae"
Gyracanthidae
Vesperaliidae
Lamellin-forming taxa
Sinacanthidae
Mongolepidida
Mongolepididae
Shiqianolepidae
Incertae sedis
"Conventionally defined
chondrichthyans"
    • see below↓
"Conventionally defined chondrichthyans"
Pucapampellidae
Omalodontiformes
Aztecodontidae
Omalodontidae
Antarctilamnidae
Mcmurdodontidae
Symmoriiformes
Cladoselachidae
Falcatidae
Symmoriidae
Holocephali
"Ctenacanthiformes"
Ctenacanthidae
Heslerodidae
Jalodontidae
Phoebodontidae
Bransonelliformes
Xenacanthiformes
Diplodoselachidae
Xenacanthidae
Incertae sedis
Euselachii
    • see below↓
"Protacrodontidae"
Homalodontidae
Sphenacanthidae
Tristychiidae
Hybodontiformes
Distobatidae
Hybodontidae
Lonchidiidae
Incertae sedis
Elasmobranchii
sensu stricto
(Neoselachii)
Anachronistidae?
"Synechodontiformes"
Incertae sedis
Crown-Elasmobranchii
Incertae sedis scale-based taxa


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