Milburn Quarry (Oligocene of New Zealand)

Also known as H45/f22

Where: South Otago, New Zealand (46.1° S, 170.0° E: paleocoordinates 52.3° S, 175.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Milburn Limestone Formation, Chattian (28.1 - 23.0 Ma)

• Waitakian, Oligocene; the Oligocene portion of the Waitakian is Chattian

•The precise stratigraphic context of OU 11573 is currently unknown, but likely falls within the early Waitakian (Oligocene, 25.2–23.0 Ma [2]). This estimate is supported by s strontium date of 23.8 ± 0.7 Ma for the horizon that yielded OU 22545. (Marx & Fordyce, 2015)

Environment/lithology: glauconitic limestone

Size class: macrofossils

Preservation: original phosphate

Primary reference: A. R. Andrew. 1906. On the geology of the Clarendon phosphate deposits, Otago, New Zealand. Transactions of the New Zealand Institute 38:447-482 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 45653: authorized by Mark Uhen, entered by Mark Uhen on 21.11.2004, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Chondrichthyes
 Lamniformes - Lamnidae
Carcharodon auriculatus Blainville 1818 white shark
Lamna sp. Cuvier 1816 mackerel shark
Lamna bronnii2 Agassiz 1843 mackerel shark
 Lamniformes - Odontaspididae
Odontaspis incurva Davis 1888 sand tiger shark
 Hexanchiformes - Hexanchidae
"Notidanus gigas" = Hexanchus gigas
"Notidanus gigas" = Hexanchus gigas Sismonda 1857 sixgill shark
 Pristiophoriformes - Pristiophoridae
Pristiophorus lanceolatus7, "Lamna ? lanceolata" = Pristiophorus lanceolata, "Trygon ? ensifer" = Ikamauius ensiler
Pristiophorus lanceolatus7 Davis 1888 saw shark
"Lamna ? lanceolata" = Pristiophorus lanceolata Davis 1888 saw shark
"Trygon ? ensifer" = Ikamauius ensiler Davis 1888 saw shark
Mammalia
 Cetacea -
"Lophocephalus parki n. gen. n. sp." = Mauicetus parki1, Odontoceti indet.3, Prosqualodon cf. davidis4
"Lophocephalus parki n. gen. n. sp." = Mauicetus parki1 Benham 1937 whale
Benham (1937) states that the type specimen of Lophocephalus parki is from either the Milburn or Clarendon quarry. It is here arbitrarily assigned to Milburn.
Odontoceti indet.3 Flower 1867 toothed whale
cranial endocasts
Prosqualodon cf. davidis4 Flynn 1923 toothed whale
 Cetacea - Squalodontidae
? Squalodontidae indet.4 Brandt 1873 toothed whale
"Squalodon" andrewi4 Benham 1942 toothed whale
"Prosqualodon" hamiltoni4 Benham 1937 toothed whale
 Cetacea - Kentriodontidae
Kentriodontidae indet.4 Slijper 1936 toothed whale
Crinoidea
 Comatulida - Comatulidae
"Actinometra sp." = Comatula
"Actinometra sp." = Comatula Lamarck 1806 crinoid
Echinoidea
 Spatangoida - Brissidae
 Camarodonta - Echinidae
Echinus enysii sea urchin
 Cidaroida - Cidaridae
Cidaris sp. Leske 1778 pencil urchin
Bivalvia
 Arcida - Cucullaeidae
"Cucullea alta" = Cucullaea
"Cucullea alta" = Cucullaea clam
 Pectinida - Limidae
Lima colorata Hutton 1873 file clam
 Pectinida - Pectinoidae
 Ostreida - Pinnidae
 Ostreida - Ostreidae
Gastropoda
 Architaenioglossa - Ampullinidae
Globularia indet.6 Swainson 1840 snail
 Neogastropoda - Volutidae
Voluta sp. Linnaeaus 1758 volute
 Neotaenioglossa - Calyptraeidae
"Crepidula (Janacus) unguiformis" = Crepidula unguiformis
"Crepidula (Janacus) unguiformis" = Crepidula unguiformis Lamarck 1822 slipper shell
 Epitonioidea - Epitoniidae
Scalaria browni wentletrap
Scalaria lyrata wentletrap
Rhynchonellata
 Terebratulida - Terebratulidae
 Terebratulida - Terebratellidae
Magellania sinuata, Magellania marshalli n. sp., "Magellania lenticularis" = Neothyris lenticularis
Magellania marshalli n. sp. Andrew 1906
"Magellania lenticularis" = Neothyris lenticularis Deshayes 1839
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Malacostraca
 Decapoda - Carcinidae
"Portunites granulifer n. sp." = Maeandricampus granuliferus5
"Portunites granulifer n. sp." = Maeandricampus granuliferus5 Glaessner 1960 crab
 Decapoda - Raninidae
Laeviranina perarmata n. sp.5 Glaessner 1960 crab
Anthozoa
 Pennatulacea -
Graphularia robinae McCoy 1877 sea pen
Tubothalamea
 Miliolida - Soritidae
Foraminifera
 Lituolida - Lituolidae
"Textularia agglutinans" = Textularia jurassica
"Textularia agglutinans" = Textularia jurassica Guembel 1862
Nodosariata
 Nodosariida - Nodosariidae
Foraminifera
  -
Cristellaria rotulata Lamarck 1804