Article · Wikipedia archive · Last revised Jun 10, 2026

Ichthyodectes

Ichthyodectes is an extinct genus of ichthyodectid ray-finned fish which lived during the Late Cretaceous. Fossils of the species included have been found from Canada to Texas.

Last revised
Jun 10, 2026
Read time
≈ 1 min
Length
222 w
Citations
1
Source
Ichthyodectes
Temporal range: Coniacian-Campanian
~
Ichthyodectes ctenodon
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Ichthyodectiformes
Family: Ichthyodectidae
Subfamily: Ichthyodectinae
Genus: Ichthyodectes
Cope, 1870
Species

See text

Ichthyodectes is an extinct genus of ichthyodectid ray-finned fish which lived during the Late Cretaceous. Fossils of the species included have been found from Canada to Texas.

Description

Ichthyodectes ctenodon ("fish biter with comb teeth") was an ichthyodectid over 3 m (9.8 ft) in length.1 It lived in the Western Interior Seaway of North America during the late Cretaceous. It was closely related to the 4–6 m (13–20 ft) long Xiphactinus audax, and the 2 m (6 ft 7 in) long Gillicus arcuatus, and like other ichthyodectids, I. ctenodon is presumed to have been a swift predator of smaller fish. As its species name suggests, I. ctenodon had small, uniformly sized teeth, as did its smaller relative, G. arcuatus, and may have simply sucked suitably sized prey into its mouth.

Species

Ichthyodectes anaides, Smithsonian National Museum of Natural History. source ↗
Life reconstruction of I. ctenodon source ↗
  • I. acanthicus
  • I. anaides
  • I. arcuatus
  • I. cruentus
  • I. ctenodon
  • I. elegans
  • I. goodeanus
  • I. hamatus
  • I. libanicus
  • I. minor
  • I. multidentatus
  • I. parvus
  • I. perniciosus
  • I. prognathus
  • I. tenuidens
References

References

  1. "Huge Ichthyodectes Fish Fossil from Kansas". The Virtual Fossil Museum. Archived from the original on 26 August 2022.