Chimbuites

Chimbuites
Temporal range:
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Pachydiscidae
Genus: †Chimbuites
Casey & Glaessner, 1958
Type species
Chimbuites sinuosocostatus
Casey & Glaessner, 1958
Species
  • C. giganteus Matsumuto & Swarko, 1993
  • C. mirindowensis Wright, 1963

Chimbuites is an extinct genus of large Pachydiscid ammonites from the Cretaceous period of Papua New Guinea and Northern Australia.[1][2][3][4][5][6]

Taxonomic history

The type species, C. sinuosocostatus, was originally described in 1958 from the Albian stage near the Chimbu airstrip in the Eastern Highlands of Papua New Guinea, within the Chim Formation, placed in the family Hoplitidae.[1][3] C. mirindowensis was described in 1963 from the Upper Cenomanian stage around Mirindow and Mirialampi Points, Pouplimadourie, and Moonkinu on Bathurst Island; a species possibly equivalent to it was later also found in the Ieru Formation of Papua New Guinea in 1991.[2][4] With the description of C. giganteus from the Middle Cenomanian of the Kerabi Formation in 1993, the genus is now considered to be in the family Pachydiscidae, with all species likely being from the same period.[3][5]

References

  1. 1 2 Glaessner, Martin F.; Casey, R. (August 15, 1958). "New Cretaceous fossils from New Guinea With a Contribution on a New Ammonite Genus". Records of the South Australian Museum. 13 (2): 199–226. ISSN 0376-2750. LCCN 22014228. OCLC 2489475 – via Biodiversity Heritage LIbrary.
  2. 1 2 Wright, C. W. (1963). "Cretaceous ammonites from Bathurst Island, Northern Australia". Palaeontology. 6 (4): 597–614 – via Internet Archive.
  3. 1 2 3 Matsumoto, Tatsuro; Swarko, Stanislaw K. (December 31, 1992). "Cretaceous ammonites from south-central Papua New Guinea". AGSO Journal of Australian Geology & Geophysics. 14 (4): 411–433 – via Geoscience Australia.
  4. 1 2 Matsumoto, Tatsuro; Swarko, Stanislaw K. (December 31, 1990). "Ammonites of the Cretaceous Ieru Formation, western Papua New Guinea" (PDF). BMR Journal of Australian Geology & Geophysics. 12 (3): 245–262 – via Geoscience Australia.
  5. 1 2 Morales, J.; Clapham, M. (November 29, 2015). "Chimbuites". Paleobiology Database. Retrieved August 22, 2026.
  6. ↑ "Chimbuites". www.gbif.org. Retrieved 2026-08-22.