Tinui-Awatoitoi [Maringi Fm] (Cretaceous of New Zealand)

Where: New Zealand (40.9° S, 177.0° E: paleocoordinates 75.0° S, 167.3° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Maringi Formation (Mangapurupuru Group), Motuan (103.3 - 99.5 Ma)

• STRATIGRAPHIC RELATIONS: From the Maringi Fm, which unconformably overlies Torlesse greywacke, and is overlain by the Springhill Fm (Cenomanian). AGE: Motuan (=Albian), and probably extending down to the Urutawan, on the basis of macrofossil biostratigraphy. Here placed in Motuan = Albian. STRATIGRAPHIC POSITION: Composite for entire formation.

• formation-level stratigraphic resolution

Environment/lithology: coastal; lithified, gray siltstone

• ENVIRONMENT: Shallow marine siliciclastic paleoenvironment.
• SPECIFIC LITHOLOGY: Grey siltstone. LITHIFICATION: Lithified, based on facies description.

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the IGNS

Collection methods: surface (in situ),

• COLLECTOR: Multiple collectors. REPOSITORY: GSNZ (now GNS Science, Lower Hutt, New Zealand).

Primary reference: M. R. Johnston. 1980. Geology of the Tinui-Awatoitoi District. New Zealand Geological Survey Bulletin 94:1-62 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 83438: authorized by Austin Hendy, entered by Austin Hendy on 20.08.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalvia and cephalopoda, and other invertebrate groups (gastropoda, echinoidea, bryozoa, annelida listed). NOMENCLATURE: Not an authoritative publication, and generally lacking species-level designations.
Bivalvia
 Solemyida - Solemyidae
Solemya sp. Children 1823 Awning Clam
 Pectinida - Propeamussiidae
Parvamussium sp. Sacco 1897 mud scallop
 Pectinida - Buchiidae
 Myalinida - Inoceramidae
Cephalopoda
 Ammonitida - Desmoceratidae
 Ammonitida - Kossmaticeratidae
Wellmanites sp. Wright 1957 ammonite
 Ammonitida - Lytoceratidae
Ammonoceratites sp. Bowditch 1822 ammonite
 Ammonitida - Tetragonitidae
 Phylloceratida - Phylloceratidae
Phyllopachyceras sp. Spath 1925 ammonite
 Nautilida - Hercoglossidae
 Belemnitida - Dimitobelidae
Dimitobelus aff. superstes Hector 1886 belemnite
Foraminifera
 Globigerinoidea - Globigerinidae
"Hedbergella planispira" = Globigerina planispira
"Hedbergella planispira" = Globigerina planispira Tappan 1940
Equisetopsida
 Pinidae - Pinidae
Araucarites sp. Presl 1833