East of Moonkinu Beach (QMF L842) (Cretaceous of Australia)

Where: Northern Territory, Australia (11.8° S, 130.4° E: paleocoordinates 40.1° S, 117.6° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Acanthoceras rhotomagense ammonoid zone, Moonkinu Formation (Bathurst Island Group), Middle Cenomanian (99.6 - 93.5 Ma)

• "immediately beneath the ammonite-bearing Tapara bed"

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, concretionary mudstone and concretionary siltstone

• from multiple beds of mudstone and siltstone interbedded with apparently unfossiliferous fine quartzose sandstone formation is "an open marine, shelfal environment"
• LITHOLOGY: "1.5 m interval of fossil-bearing concretionary siltstone and mudstone". LITHIFICATION: Poorly lithified, based on figured specimen.

Size class: macrofossils

Preservation: concretion, original aragonite

Collection methods: surface (float),

Primary reference: J. D. Stilwell and R. A. Henderson. 2002. Description and paleobiogeographic significance of a rare Cenomanian molluscan faunule from Bathurst Island, northern Australia. Journal of Paleontology 76(3):447-471 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13946: authorized by John Alroy, entered by John Alroy on 05.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ammonite list is given without exact provenance data, so some ammonite records may pertain instead to QMF L923 (see)
Show authors, comments, and common names
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium (Dentalium) sp.
Dentalium (Dentalium) sp. Linnaeus 1758 tusk shell
"new species A"
 Dentaliida - Laevidentaliidae
Laevidentalium sp.
Laevidentalium sp. Cossmann 1888 tusk shell
"new species? A"
Bivalvia
 Nuculida - Nuculidae
Nucula meadinga n. sp.
Nucula meadinga n. sp. nut clam
 Nuculanida - Malletiidae
? Malletia sp.
? Malletia sp. des Moulins 1832 clam
 Nuculanida - Nuculanidae
Nuculana bathurstensis n. sp., Nuculana cf. minmiensis, ? Jupiteria sp.
Nuculana bathurstensis n. sp. pointed nut clam
Nuculana cf. minmiensis pointed nut clam
? Jupiteria sp. Bellardi 1875 pointed nut clam
"new species A"; possibly 1 specimen instead of 2
 Myalinida - Inoceramidae
"Actinoceramus nipponicus" = Birostrina
"Actinoceramus nipponicus" = Birostrina clam
specimen count is a maximum; includes "Inoceramus concentricus" of Henderson in Hughes 1978
 Pectinida - Anomiidae
? Anomia sp.
? Anomia sp. Linnaeus 1758 jingle
 Arcida - Parallelodontidae
Grammatodon cf. psittaculum
 Thraciida - Thraciidae
Thracia sp.
Thracia sp. Blainville 1824 clam
 Cardiida - Cardiidae
? Nemocardium (Pratulum) arnhemense
 Cardiida - Veneridae
? Veneridae indet.
? Veneridae indet. Rafinesque 1815 venus clam
 Pholadida - Corbulidae
"Varicorbula cretaustrina" = Corbula (Varicorbula)
"Varicorbula cretaustrina" = Corbula (Varicorbula) clam
1 specimen apparently from QMW L11543, apparently an otherwise undescribed locality
Gastropoda
 Opisthobranchia - Cylichnidae
Cylichna cf. intermissia
Cylichna cf. intermissia Sohl 1964 snail
 Vanikoroidea - Vanikoridae
Vanikoropsis demipleurus n. sp.
 Sorbeoconcha - Naticidae
Euspira sp.
Euspira sp. Agassiz 1837 moon snail
"new species A"
 Sorbeoconcha - Aporrhaidae
Latiala mountnorrisi
 Neogastropoda - Turridae
Amuletum praeturriformis n. sp.
 Heterostropha - Architectonicidae
Granosolarium cretasteum n. sp.
 Heterostropha - Ringiculidae
Biplica antichthona n. sp.
Biplica antichthona n. sp. snail
 Heterostropha - Acteonidae
Acteon bathurstensis n. sp., Goniocylichna australocylindricata n. sp.
 Heterostropha - Mathildidae
Echinimathilda moonkinua n. sp.
Cephalopoda
 Ammonitida - Acanthoceratidae
"Acanthoceras tapara" = Calycoceras (Newboldiceras) tapara, Cunningtoniceras lonsdalei, Cunningtoniceras cunningtoni, Acanthoceras mirialampiensis, Acanthoceras cf. quadratum
"Acanthoceras tapara" = Calycoceras (Newboldiceras) tapara Wright 1963 ammonite
Cunningtoniceras lonsdalei Adkins 1928 ammonite
Cunningtoniceras cunningtoni Sharpe 1855 ammonite
 Ammonitida - Pachydiscidae
Chimbuites miridowensis
 Ammonitida - Baculitidae
Sciponoceras glaessneri
 Ammonitida - Turrilitidae
Hypoturrilites gravesianus, Turrilites costatus
Hypoturrilites gravesianus d'Orbigny 1842 ammonite
Turrilites costatus Lamarck 1801 ammonite