Article · Wikipedia archive · Last revised Jul 12, 2026

Moanasaurus

Moanasaurus was a genus of mosasaur from the Late Cretaceous period. Its fossil remains have been discovered in the North Island of New Zealand. Moanasaurus was a very large mosasaurine known originally from holotype CD43, a disarticulated skull, vertebrae, ribs and flipper bones. The skull measures 78 cm (31 in) in length, which shows that Moanasaurus was one of the largest in the subfamily of Mosasaurinae. Researchers argue that some Antarctic Mosasaurus remains may be attributed to this genus.

Last revised
Jul 12, 2026
Read time
≈ 1 min
Length
272 w
Citations
3
Source
Moanasaurus
Temporal range: Late Cretaceous,
Life restoration
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Clade: Mosasauria
Family: Mosasauridae
Tribe: Mosasaurini
Genus: Moanasaurus
Wiffen, 1980
Species
  • Moanasaurus mangahouangae (type)
    Wiffen, 1980
Synonyms
  • Rikisaurus tehoensis
    Wiffen, 1990
  • Mosasaurus flemingi?
    Wiffen, 1990

Moanasaurus (From Māori moana "sea" and Greek sauros "lizard"; meaning "Sea Lizard") was a genus of mosasaur from the Late Cretaceous period. Its fossil remains have been discovered in the North Island of New Zealand. Moanasaurus was a very large mosasaurine known originally from holotype CD43, a disarticulated skull, vertebrae, ribs and flipper bones. The skull measures 78 cm (31 in) in length, which shows that Moanasaurus was one of the largest in the subfamily of Mosasaurinae.1 Researchers argue that some Antarctic Mosasaurus remains (including a "large, fragmentary skull") may be attributed to this genus.2

Two additional species have been named, "Moanasaurus hobetsuensis" (originally named Mosasaurus hobetsuensis) and "Moanasaurus longirostris", but these are nomina nuda because they were named in a PhD thesis. The same thesis argued that Mosasaurus flemingi is a junior synonym of Moanasaurus mangahouangae.3

See also

See also

References

References

  1. Wiffen, J. (1980). "Moanasaurus, a new genus of marine reptile (Family Mosasauridae) from the Upper Cretaceous of North Island, New Zealand". New Zealand Journal of Geology and Geophysics. 23 (4): 507–528. doi:10.1080/00288306.1980.10424122.
  2. Martin, J.E. (2007). "Biostratigraphy of the Mosasauridae (Reptilia) from the Cretaceous of Antarctica". Geological Society, London, Special Publications. 258 (1): 101–108. doi:10.1144/GSL.SP.2006.258.01.07. S2CID 128604544.
  3. Hallie P. Street (2016). A re-assessment of the genus Mosasaurus (Squamata: Mosasauridae) (PDF) (PhD). University of Alberta. doi:10.7939/R31N7XZ1K. S2CID 92749266.
External links