Tumaio Limestone, Chatham Island (Eocene of New Zealand)

Where: Chatham Island, New Zealand (43.7° S, 176.6° W: paleocoordinates 53.6° S, 147.8° W)

• coordinate stated in text

When: Early/Lower Eocene (55.8 - 48.6 Ma)

Environment/lithology: transition zone or lower shoreface; lag, calcareous tuff

• bedding and textural features indicative of a mid-shelf to upper-bathyal life setting
• a calcareous palagonite tuff of basaltic composition with beds of lapillistone and tuff-breccia

•soft, poorly bedded, bryozoan grainstone and minor echinoid-spine packstone

Size classes: mesofossils, microfossils

• Associated macrofossils include a scleractinian coral, several brachiopods, a gastropod and bivalves.

Collection methods: PREPARATION: Individual bryozoans could be picked out of the limestone whereas bulk collections were collected for later washing, sieving and sorting. Specimens were studied by scanning electron microscopy using a LEO 1455VP SEM at the Natural History Museum, London, UK and a Hitachi TM3000 Tabletop Microscope at the National Institute of Water and Atmospheric Research, Wellington, New Zealand.

Primary reference: D. P. Gordon and P. D. Taylor. 2015. Bryozoa of the Early Eocene Tumaio Limestone, Chatham Island, New Zealand. Journal of Systematic Palaeontology 1-88 [L. Liow/F. Franeck]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 172944: authorized by Lee Hsiang Liow, entered by Franziska Franeck on 03.09.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Stenolaemata
 Cyclostomata - Lichenoporidae
 Cyclostomata - Cerioporidae
? Ceriopora sp. Goldfuss 1826
Tholopora sp. Gregory 1909
Heteropora scholzi n. sp. Gordon and Taylor 2015
 Cyclostomata - Densiporidae
? Borgella sp. Kluge 1955
 Cyclostomata - Horneridae
? Hornera sp. Lamouroux 1821
 Cyclostomata - Crisinidae
Crisina hochstetteriana Stoliczka 1865
 Cyclostomata -
cf. Serietubigera sp. d'Orbigny 1853
 Cyclostomata - Diaperoeciidae
Nevianipora sp. Borg 1944
? Harmelinopora sp. Brood 1976
 Cyclostomata - Plagioeciidae
Mesenteripora jamesi n. sp. Gordon and Taylor 2015
Plagioecia zatoni n. sp. Gordon and Taylor 2015
 Cyclostomata -
? Telopora sp. Canu and Bassler 1920
 Cyclostomata - Tubuliporidae
Idmidronea sp. Canu and Bassler 1920
Zagorsekia nodulosa n. gen. MacGillivray 1895
Platonea dilatata Gordon and Taylor 2015
Exidmonea sp. Mongereau 1970
 Cyclostomata - Oncousoeciidae
 Cyclostomata -
cf. Discocytis sp. d'Orbigny 1854
 Cyclostomata - Cinctiporidae
? Attinopora sp. Boardman et al. 1992
Gymnolaemata
 Ctenostomata -
 Cheilostomata - Electridae
Conopeum stamenocelloides n. sp. Gordon and Taylor 2015
 Cheilostomata - Aspidostomatidae
Aspidostoma twinn n. sp. Gordon and Taylor 2015
Aspidostoma clava n. sp. Gordon and Taylor 2015
Aspidostoma gelasinus n. sp. Gordon and Taylor 2015
Melychocella obliqua n. sp. Gordon and Taylor 2015
Melychocella bilamellata n. sp. Gordon and Taylor 2015
 Cheilostomata - Microporidae
Micropora chathamica n. sp. Gordon and Taylor 2015
Andreella dubia n. sp. Gordon and Taylor 2015
 Cheilostomata - Onychocellidae
Floridina sp. Jullien 1881
Floridina elegans n. sp. Gordon and Taylor 2015
Onychocella subtriangulata n. sp. Gordon and Taylor 2015
 Cheilostomata - Chaperiidae
Chaperiopsis cookae n. sp. Gordon and Taylor 2015
 Cheilostomata - Pyrisinellidae
Pyrisinella primazelandiae n. sp. Gordon and Taylor 2015
 Cheilostomata - Foveolariidae
Dactylostega spiralis n. sp. Gordon and Taylor 2015
 Cheilostomata - Bryopastoridae
Pseudothyracella campbelli n. sp. Gordon and Taylor 2015
Cladobryopastor philipi n. gen. n. sp. Gordon and Taylor 2015
 Cheilostomata - Calloporidae
Tumaiella dieffenbachi n. gen. n. sp. Gordon and Taylor 2015
Marssonopora connexa n. sp. Gordon and Taylor 2015
Amphiblestrum paleogenicum n. sp. Gordon and Taylor 2015
 Cheilostomata - Romancheinidae
Exochella linearis n. sp. Gordon and Taylor 2015
Exochella abigailae n. sp. Gordon and Taylor 2015
Exochella reidae n. sp. Gordon and Taylor 2015
Exochella woodae n. sp. Gordon and Taylor 2015
Hemicyclopora ventricosa n. sp. Gordon and Taylor 2015
 Cheilostomata - Bryocryptellidae
Porella tiorioriensis n. sp. Gordon and Taylor 2015
 Cheilostomata - Lepraliellidae
Chataimulosia revelator n. sp. Gordon and Taylor 2015
Multescharellina pisiformis n. sp. Gordon and Taylor 2015
 Cheilostomata - Exechonellidae
Exechonella chathamensis n. sp. Gordon and Taylor 2015
 Cheilostomata - Arachnopusiidae
Arachnopusia dimorpha n. sp. Gordon and Taylor 2015
Moyanopora hugoi n. gen. n. sp. Gordon and Taylor 2015
Quasitrilaminopora curiosa n. sp. Gordon and Taylor 2015
 Cheilostomata - Phidoloporidae
Reteporella mediocris n. sp. Gordon and Taylor 2015
 Cheilostomata - Celleporidae
Osthimosia curiosa n. sp. Gordon and Taylor 2015
Osthimosia aurora n. sp. Gordon and Taylor 2015
 Cheilostomata - Adeonidae
Adeonellopsis incompta n. sp. Gordon and Taylor 2015
 Cheilostomata - Diedroporidae
Diedropora gravabilis n. gen. n. sp.
Diedropora gravabilis n. gen. n. sp. Gordon and Taylor 2015
 Cheilostomata - Tubucellariidae
Siphonicytara primitiva n. sp. Gordon and Taylor 2015
Siphonicytara litotes n. sp. Gordon and Taylor 2015
 Cheilostomata - Lacernidae
Lacerna ordinaria n. sp. Gordon and Taylor 2015
 Cheilostomata - Eminooeciidae
Macrocamera obesa n. sp. Gordon and Taylor 2015
 Cheilostomata - Gigantoporidae
Gigantopora modesta n. sp. Gordon and Taylor 2015
Gigantopora grandis n. sp. Gordon and Taylor 2015
 Cheilostomata - Schizoporellidae
Phonicosia sinuosa n. sp. Gordon and Taylor 2015
 Cheilostomata - Porinidae
Porina turrita n. sp. Gordon and Taylor 2015
 Cheilostomata -
Illusiopora bifax n. gen. n. sp., Illusiopora recta n. gen. n. sp.
Illusiopora bifax n. gen. n. sp. Gordon and Taylor 2015
Illusiopora recta n. gen. n. sp. Gordon and Taylor 2015
 Cheilostomata - Cellariidae
Cellaria bicuspidata n. sp. Gordon and Taylor 2015
Cellaria inarticulata n. sp. Gordon and Taylor 2015
Cellaria gigas n. sp. Gordon and Taylor 2015
Cellaria palatum n. sp. Gordon and Taylor 2015