J32/f7585 - Stillwater Mudstone, Karoro Brickworks Quarry (Miocene of New Zealand)

Also known as S44/f585; GS 3341

Where: New Zealand (42.5° S, 171.2° E: paleocoordinates 48.7° S, 173.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Stillwater Mudstone Formation (Blue Bottom Group), Waiauan (12.7 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Stillwater Mudstone, which overlies the Inangahua Formation (Otaian-Altonian) and underlies the Eight Mile Formation (Tongaporutuan-Waipipian) of the Blue Bottom Group. The Stillwater Mudstone includes the Tindale Limestone Member. AGE: Macrofossil biostratigraphy indicates a Waiauan-Tongaporutuan age, while microfossils suggest a Waiauan age.

• bed-level stratigraphic resolution

Environment/lithology: deep-water; unlithified, concretionary, gray, blue siltstone

• ENVIRONMENT: Upper, but not uppermost, bathyal environment, probably in the range of 400-800 m.
• SPECIFIC LITHOLOGY: Massive or indistinctly bedded blue-grey siltstone with very little sand-sized material and with scattered, irregularly tabular concretions. LITHIFICATION: Unlithified based on figured specimens.

Size class: macrofossils

Preservation: original aragonite, original calcite

Collection methods: quarrying,

• COLLECTOR: A.G. Beu, M. Gage, R.H. Hoskins, S.M. Jarman, P.A. Maxwell, S.G. Nathan. REPOSITORY: Mostly reposited at New Zealand Geological Survey (now GNS Science), Lower Hutt, New Zealand

Primary reference: P. A. Maxwell. 1988. Late Miocene Deep-Water Mollusca from the Stillwater Mudstone at Greymouth, Westland, New Zealand: Paleoecology and Systematics. New Zealand Geological Survey Paleontological Bulletin 55 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 63089: authorized by Austin Hendy, entered by Austin Hendy on 04.08.2006, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Exhaustive for gastropoda, bivalvia and scaphopoda. Some other groups known to be present (decapoda, teleost fish, sharks) but not listed. NOMENLCATURE: Authoritative publication using modern nomenclature.
 Opisthobranchia - Cylichnidae
Cylichnania sp. Marwick 1931 snail
? Cylichna sp. n. sp. Lovén 1846 snail
Taita lawsi n. sp. Maxwell 1988 snail
Scaphander sp. Monfort 1810 snail
 Sorbeoconcha - Eulimidae
Eulimidae indet. Philippi 1853 snail
 Sorbeoconcha - Epitoniidae
Notacirsa subnodulosa n. sp. wentletrap
 Sorbeoconcha - Rissoidae
Ihungia ponderi n. sp. snail
 Neogastropoda - Horaiclavidae
 Neogastropoda - Raphitomidae
Rugobela sp. n. sp. Finlay 1924 snail
 Neogastropoda - Terebridae
Zeacuminia viapollentia n. sp. auger snail
 Neogastropoda - Mangeliidae
 Neogastropoda - Turridae
 Neogastropoda - Drilliidae
 Neogastropoda - Pseudomelatomidae
Comitas nana n. sp. snail
Comitas "sp. C" Finlay 1926 snail
 Neogastropoda - Clathurellidae
 Neogastropoda - Cochlespiridae
Cochlespira (Cochlespira) sp. n. sp. Conrad 1865 snail
 Neogastropoda - Ptychatractidae
Exilia wellmani n. sp. snail
 Neogastropoda - Volutomitridae
 Neogastropoda - Costellariidae
Paracomitas (Macrosinus) beui n. sp. ribbed mitre
 Neogastropoda - Cancellariidae
 Neogastropoda - Buccinidae
? Austrofusus sp. Kobelt 1879 true whelk
 Neogastropoda - Nassariidae
 Neogastropoda - Columbellidae
Retizafra toreuma n. sp. snail
 Neogastropoda - Fasciolariidae
 Neogastropoda - Muricidae
 Neogastropoda - Marginellidae
Volvarinella sp. Habe 1951 margin shell
Serrata flemingi n. sp. margin shell
 Sorbeoconcha - Cassidae
Echinophoria sp. Sacco 1890 snail
 Sorbeoconcha - Ranellidae
Sassia sp. n. sp.
Sassia sp. n. sp. Bellardi 1872 triton shell
 Sorbeoconcha - Naticidae
Taniella mima n. sp. moon snail
 Sorbeoconcha - Cerithiopsidae
Cerithiopsidae indet. Adams and Adams 1853 snail
 Sorbeoconcha - Triphoridae
Inella sp. n. sp.
Inella sp. n. sp. Bayle 1878 snail
 Sorbeoconcha - Newtoniellidae
 Sorbeoconcha - Triforidae
 Heterostropha - Pyramidellidae
Waikura elevata n. sp., Evelynella doliella, Turbonilla zesulcata n. sp., "? Pyrgiscus discors n. sp." = Turbonilla (Pyrgiscus)
Waikura elevata n. sp. snail
Turbonilla zesulcata n. sp. snail
"? Pyrgiscus discors n. sp." = Turbonilla (Pyrgiscus) snail
 Heterostropha - Ringiculidae
 Heterostropha - Mathildidae
 Pholadida - Corbulidae
"Notocorbula innerans" = Corbula (Notocorbula)
"Notocorbula innerans" = Corbula (Notocorbula) clam
 Cardiida - Semelidae
? Abra sp. Lamarck 1818 abra
 Lucinida - Lucinidae
 Arcida - Limopsidae
Limopsis cf. gisbornensis Maxwell 1978 clam
 Arcida - Arcidae
Bathyarca aff. cybaea Hedley 1906 clam
 Pectinida - Propeamussiidae
Parvamussium sp. n. sp. Sacco 1897 mud scallop
 Pectinida - Pectinoidae
Lentipecten sp. Marwick 1928 scallop
 Nuculida - Nuculidae
? Ennucula sp., "Ennucula" otamaringaensis, "Linucula delli n. sp." = Nucula (Linucula), "Deminucula bergmansi n. sp." = Nucula (Deminucula), "Varinucula crepida" = Nucula (Varinucula)
? Ennucula sp. Iredale 1931 nut clam
"Linucula delli n. sp." = Nucula (Linucula) nut clam
"Deminucula bergmansi n. sp." = Nucula (Deminucula) nut clam
"Varinucula crepida" = Nucula (Varinucula) nut clam
 Protobranchia - Tindariidae
"Austrotindaria mawheraensis n. sp." = Austrotindaria, "Pseudotindaria catillus n. sp." = Austrotindaria
"Austrotindaria mawheraensis n. sp." = Austrotindaria clam
"Pseudotindaria catillus n. sp." = Austrotindaria clam
 Protobranchia - Yoldiidae
Yoldiella stimulea n. sp. clam
 Protobranchia - Nuculanidae
? Jupiteria sp. n. sp. Bellardi 1875 pointed nut clam
"Saccella andrewi" = Nuculana (Saccella) andrewi Marwick 1931 pointed nut clam
Ledella pakaurangiensis pointed nut clam
Zealeda crassicostata n. sp. pointed nut clam
 Dentaliida - Laevidentaliidae
 Dentaliida - Dentaliidae
? Dentalium "sp. B" Linnaeus 1758 tusk shell
 Ophidiiformes - Ophidiidae
Neobythites sp.1 Goode and Bean 1885
sp. 1
Neobythites joenielseni2 Schwarzhans 1994