Batavia Knoll: Late/Upper Albian, Indian Ocean
collected 2011

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea
Echinoidea indet. (Leske 1778)
Polychaeta - Sabellida - Serpulidae
Parsimonia ootatoorensis (Stoliczka 1873)
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
Bivalvia - Myalinida - Inoceramidae
Inoceramus sp. Sowerby 1814
Bivalvia - Ostreida - Pinnidae
Pinnidae indet. Leach 1819
Bivalvia - Pectinida - Spondylidae
Spondylus sp. Linnaeus 1758
Bivalvia - Pectinida - Buchiidae
Aucellina gryphaeoides (Sowerby 1836)
Bivalvia - Carditida - Astartidae
Astarte jugosa (Forbes 1846)
Bivalvia - Cardiida - Veneridae
Resatrix sp. Casey 1952
Bivalvia - Hiatellida - Hiatellidae
Panopea cf. inaequivalvis d'Orbigny 1843
Bivalvia - Nuculanida - Nuculanidae
Nuculana cf. socialis Stoliczka 1871
Cephalopoda - Ammonitida - Hamitidae
Planohamites sp. Monks 2002
Cephalopoda - Ammonitida - Desmoceratidae
Bhimaites cf. stoliczkai (Kossmat 1898)
recombined as Puzosia (Bhimaites) stoliczkai
Gastropoda - Eucyclidae
Planolateralus acanthanodus n. sp. Wild and Stilwell 2016
Gastropoda - Pleurotomariidae
? Leptomaria sp. Eudes-Deslongchamps 1864
Gastropoda - Turbinidae
Igonoia levimargarita n. sp. Wild and Stilwell 2016
Gastropoda - Heterostropha - Architectonicidae
? Architectonicidae indet. Gray 1850
? Pseudomalaxis sp. Fischer 1850
Gastropoda - Heterostropha - Ringiculidae
Avellana cf. subincrassata
Gastropoda - Cryptaulacidae
Cirsocerithium sp. Cossmann 1906
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
Gastropoda - Procerithiidae
Procerithium arenacollicola n. sp. Wild and Stilwell 2016
Gastropoda - Aporrhaidae
Drepanocheilus bataviensis n. sp. Wild and Stilwell 2016
Anchura pelsaerti n. sp. Wild and Stilwell 2016
Ostracoda - Podocopida - Trachyleberididae
? Trachyleberididae indet. Sylvester-Bradley 1948
? Spinoleberis sp.
see common names

Geography
Country:Indian Ocean
Coordinates: 25.3° South, 100.3° East (view map)
Paleocoordinates:25.3° South, 100.3° East
Basis of coordinate:stated in text
Geographic resolution:local area
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Albian 10 m.y. bin:Cretaceous 4
Key time interval:Late/Upper Albian
Age range of interval:106.20000 - 100.50000 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: Aucellina gryphaeoides Sowerby, 1836 is not recorded below the base of the Mortoniceras inflatum Ammonite Zone in Europe (Lehmann et al., 2008), and Bhimaites stoliczkai Kossmat, 1898 is found to have a similarly timed first appearance datum there (Gale et al., 2011). The type specimen for B. stoliczkai was described from the Odiyam Member of the Karai Formation in southern India (Stoliczka, 1865), a unit that straddles the Albian-Cenomanian boundary (Sundaram et al., 2001). The temporal range of both these taxa extends only into the early Cenomanian (Morter and Wood, 1983; Kennedy and Klinger, 2014). Further refinement comes with the extinction of Planohamites Monks, 2002 at the end of the Albian, 100.5 Ma (Monks, 2002; Gradstein et al., 2012). The presence of these temporally restricted taxa resolves the age of the Batavia Knoll sandstone, constraining it to the late Albian and probably the early late Albian, ca. 103 to 101 Ma. The benthic foraminiferal assemblages therefrom were deemed to be of late Albian age. This is consistent with preliminary calcareous microfossil analysis conducted by P. Quilty (personal communication, 2014).
Lithology and environment
Primary lithology: lithified sandstone
Lithology description: Sandstone (medium-grained laminated to coarse-grained massive) facies. Those studied herein exhibited low textural maturity, being poorly sorted, having relatively large subhedral quartz (which dominated; ~80% framework composition), and smaller mica and feldspar framework grains supported by a micritic matrix. The sandstone is massive, and all fossils therein were arranged with haphazard orientations, with no bedding apparent.
Environment:coastal indet.
Geology comments: Close proximity of the deposition site to the paleoshore is evidenced in the presence of a substantial quantity of wood fragments being recovered from the Batavia Knoll sandstone.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection dates:2011
Collection method comments: Repository: Western Australian Museum
Metadata
Database number:181562
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2016-09-15 22:59:07 Last modified:2017-05-23 16:34:15
Access level:the public Released:2016-09-15 22:59:07
Creative Commons license:CC BY
Reference information

Primary reference:
60376. T. J. Wild and J. D. Stilwell. 2016. First Cretaceous (Albian) invertebrate fossil assemblage from Batavia Knoll, Perth Abyssal Plain, eastern Indian Ocean: taxonomy and paleoecological significance. Journal of Paleontology 90:959-980 [M. Clapham/M. Clapham]