NUMMULITOIDEA

 

Test: planispiral or cyclic, lenticular multicamerate, with septal flap and canaliculated septa. A spiral marginal cord and spiral canal system is present in early forms, but is modified in advanced forms or replaced by intraseptal canals. Paleocene to Holocene.

 

There are four families:

·         Cycloclypeidae

·         Nummulitidae

·         Orthophragminidae

·         Pellatispiridae

 

Family Pellatispiridae Hanzawa, 1937

 

  • Biplanispira Umbgrove, 1937. Middle to Late Eocene

 

 

 

 

 

Biplanispira mirabilis (Umbgrove), Late Eocene, Indonesia

 

 

 

 

 

 

 

 

Assemblage of Biplanispira, Discocyclina Java

 

  • Bolkarina Sirel, 1981. Late Paleocene (Thanetian).
  • Miscellanea Pfender, 1935. Paleocene

 

 

 

 

 

 

Miscellanea meandrina (Carter), Qatar

 

  • Pellatispira Boussac, 1906. Late Middle Eocene to Late Eocene.

 

 

 

 

 

 

 

Pellatispira sp., Pakistan

 

  • Serraia Matsumaru, 1999. Late Middle Eocene.
  • Vacuolispira Tan Sin Hok, 1936. Late Eocene.

 

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Vacuolispira inflata (Umbgrove), Late Eocene, Borneo,

 

Family Nummulitidae de Blainville, 1827

 

Subfamily Heterostegininae Galloway, 1933

 

  • Grzybowskia Bieda, 1950. Late Eocene.

 

 

 

 

 

 

Grzybowskia multifida Bieda, Carpathians

 

  • Heterostegina d’ Orbigny, 1826, sensu stricto emended Banner and Hodgkinson, 1991. Late Eocene to Holocene.

Banner and Hodgkinson (1991) suggested three genera based on coiling:

1.        Heterostegina (Heterostegina). Late Eocene to Holocene.

 

 

 

 

 

Heterostegina sp., Indonesia

 

2.        Heterostegina (Vlerkina) = Heterostegina (Vlerkinella). Late Eocene to Late Miocene (Messinian).

 

 

 

Heterostegina (Vlerkina) borneensis van der Vlerk, Borneo

 

3.        Planostegina Banner and Hodgkinson, 1991. Late Paleocene to Holocene.

 

 

 

Planostegina sp., Borneo

 

  • Spiroclypeus Douvillé, 1905. Late Eocene (Letter Stage “Tb”) to Early Miocene (Letter Stage “Te5”)

 

 

 

Spiroclypeus sp., Java

 

  • Tansinhokella Banner and Hodgkinson, 1991. Late Eocene (Letter Stage “Tb”) to Early Miocene (Letter Stage “Te5”)

 

 

 

Tansinhokella tatauensis Banner and Hodgkinson, paratype, Tatau Formation, Sarawak, Borneo

 

 

Subfamily Nummulitinae de Blainville, 1827

 

·         Assilina d’Orbigny, 1839. Late Paleocene (planktonic zone P4) to Middle Eocene (planktonic zone P14)

 

 

 

 

 

Assilina granulosa var. chhumbiensis Gill, Lower Bhadra Beds, Pakistan

 

·         Nummulites Lamarck, 1801. Middle Paleocene to Early Oligocene

 

 

 

 

Nummulites sp., Gernona, Spain

 

·         Operculina d'Orbigny, 1826. Late Paleocene to Holocene

 

 

 

 

 

 

 

Operculina sp., Kalimantan

 

·         Operculinella Yabe, 1918. Oligocene to Holocene

 

 

 

 

 

 

Operculinella sp., Florida, USA

 

·         Planocamerinoides Cole, 1958. Late Paleocene to Middle Eocene (Plate 6.19, fig. 14)

·         Ranikothalia Caudri, 1944. Late Paleocene

 

 

 

 

 

 

Ranikothalia sahnii Davies, India

 

  • Heterocyclina Hottinger, 1977. Holocene.
  • Bozorgniella Rahaghi, 1973. Early Miocene (Aquitanian).
  • Planoperculina Hottinger, 1977, emended Banner and Hodgkinson, 1991. Holocene.

·         Radiocycloclypeus Tan Sin Hok, 1932. Early Miocene (Burdigalian) to Middle Miocene (Serravallian).

 

Family Cycloclypeidae Galloway, 1933 emend. BouFagher-Fadel, 2002

 

  • Cycloclypeus Carpenter, 1856. Early Oligocene to Holocene.

 

 

 

 

 

 

Cycloclypeus sp., Borneo

 

  • Katacycloclypeus Tan Sin Hok, 1932. Middle Miocene (late Langhian to Serravallian)

 

 

 

 

 

 

 

Katacycloclypeus annulatus (Martin), Darai Limestone, Papua New Guinea, Australia

 

Family Orthophragminidae Vedekind, 1937

 

Subfamily Discocyclininae Galloway, 1928

 

  • Actinocyclina Gümbel, 1870.. Middle to Late Eocene.
  • Asterophragmina Rao, 1942. Late Eocene.

 

 

 

 

 

Asterophragmina pagoda (Rao), Burma

 

  • Discocyclina Gümbel, 1870. Middle Paleocene to Late Eocene

 

 

 

 

 

Discocyclina sheppardi Barker, Soldado Rock, Trinidad

 

  • Hexagonocyclina Caudri, 1944. Early to Middle Eocene

 

 

 

 

 

 

 

Hexagonocyclina cristensis (Vaughan), Mexico

 

  • Nemkovella Less, 1987. Late Paleocene (Thanetian) to Early Eocene (Ypresian).
  • Pseudophragmina Douvillé, 1923. Eocene

 

 

 

 

 

Pseudophragmina floridana (Cushman), Georgia

 

Subfamily Orbitoclypeinae Brönnimann 1946

 

  • Asterocyclina Gümbel, 1870. Middle Paleocene to Eocene

 

 

 

Asterocyclina sp., Kopili Formation, Bangladesh

 

  • Neodiscocyclina Caudri, 1972. Middle Eocene

 

 

 

Neodiscocyclina anconensis (Barker), Barbados

 

  • Orbitoclypeus Silvestri, 1907. Late Paleocene to Late Eocene

 

 

 

 

Orbitoclypeus nummuliticus (Gümbel), France

 

  • Stenocyclina Caudri, 1972. Middle Eocene.