Walpole, north (Eocene of Australia)

Where: Western Australia, Australia (34.8° S, 116.7° E: paleocoordinates 54.8° S, 102.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pallinup Siltstone Member (Werillup Formation), Priabonian (38.0 - 33.9 Ma)

• The Werillup Formation is regarded as late Middle Eocene. This is supported by the presence of the Dasycladcian algae, Larvana and Neomeris (Cockbain 1969) and the foraminifer Asterocylinia(Cockbain 1967). The Pallinup Siltstone is of similar age, again from the presence of the nautiloid Aturia clarkei and foraminifer reported by Backhouse (1969), Cockbain (1968a) and Quilty (1969). The foraminifers correspond with Ludbrook's "Tortachilla microfauna" (Cockbain 1968c).

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, brown, white, cherty/siliceous siltstone

• Was laid down in a shallow transgressive sea with negligible input of terrigenous material, allowing sponges to thrive. The Pallinup Siltstone formed in a shallow shelf environment with well circulated water of normal marine salinity. They inferred a depth of deposition of 76 m but Pickett (1982) suggested this estimate might be too great. Churchill (1973) and Clarke (1994) inferred a depth of deposition of approximately 150 m. The estimates of depth of deposition by Darragh and Kendrick (1980) are therefore possibly conservative.
• Cockbain (1968c) described the Pallinup Siltstone as typically 'white, brown or red siltstone and spongolite.'

Size class: macrofossils

Reposited in the WAM

Primary reference: T. A. Darragh. 2017. Further Mollusca from the late Eocene Pallinup Formation, Eucla Basin, Western Australia. Records of the Western Australian Museum 32:29-100 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 205816: authorized by Mark Uhen, entered by Mark Uhen on 23.10.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Nautilida - Nautilidae
? Eutrephoceras sp. Hyatt 1894 nautiloid
Gastropoda
 Trochoidea - Skeneidae
Crosseola princeps Tate 1890 snail
 Epitonioidea - Epitoniidae
Epitoniidae indet. Berry 1910 wentletrap
Cirsotrema pleiophylla Tate 1890 wentletrap
Notacirsa lampra Tate 1890 wentletrap
 Vanikoroidea - Eulimidae
? Melanella sp. Bowdich 1822 snail
Niso kimberi Pritchard 1906 snail
? Curveulima sp. Laseron 1955 snail
Eulima danae Tenison Woods 1879 snail
 Neotaenioglossa - Trichotropidae
Cerithioderma tabulata Tate 1890 snail
 Cerithioidea - Cerithiidae
Cerithiidae indet. Fleming 1822 cerith snail
Orthochetus pagoda Chapman and Crespin 1934 cerith snail
Clavocerithium kendricki n. sp. Darragh 2017 cerith snail
Pseudovertagus longbottomi n. sp. Darragh 2017 cerith snail
Jetwoodsia nullarborica Tate 1879 cerith snail
 Cerithioidea - Siliquariidae
Tenagodus ? occlusus, "Thylacodes actinotus" = Lilax actinotus
Tenagodus ? occlusus Tenison Woods 1877 snail
"Thylacodes actinotus" = Lilax actinotus Tate 1893 snail
 Cerithioidea - Turritellidae
Glyptozaria sp. Iredale 1924 turret shell
 Neogastropoda - Olividae
Belloliva canaliculata n. sp. Darragh 2017 olive snail
 Neogastropoda - Ancillariidae
"Amalda (Gracilispira) ligata" = Gracilispira ligata
"Amalda (Gracilispira) ligata" = Gracilispira ligata Tate 1889 snail
 Neogastropoda - Buccinidae
? Tasmeuthria arenicola n. sp. Darragh 2017 true whelk
 Neogastropoda - Fasciolariidae
Fusinus sculptilis Tate 1888 snail
 Neogastropoda - Columbellidae
Retizafra sp. Hedley 1913 snail
Mitrella sp. Risso 1826 snail
 Neogastropoda - Melongenidae
? Pugilina sp. Schumacher 1817 snail
 Neogastropoda - Cochlespiridae
Apiotoma sp. Cossmann 1889 snail
 Neogastropoda - Conidae
Conorbis notialis n. sp. Darragh 2017 cone shell
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Drilliidae
? Splendrillia sp. Hedley 1922 snail
 Neogastropoda - Pseudomelatomidae
? Comitas sp. Finlay 1926 snail
Comitas silicicola n. sp. Darragh 2017 snail
"Comitas aldingensis" = Comitas (Carinocomitas) aldingensis Powell 1944 snail
 Neogastropoda - Borsoniidae
Cordieria torquata n. sp. Darragh 2017 snail
Cordieria fuscoamnica n. sp. Darragh 2017 snail
 Neogastropoda - Mangeliidae
Neoguraleus filiferus n. sp. Darragh 2017 snail
 Neogastropoda - Raphitomidae
 Neogastropoda - Volutomitridae
 Neogastropoda - Costellariidae
Conomitra strombodiformis n. sp. Darragh 2017 ribbed mitre
 Neogastropoda - Marginellidae
Eratoidea fusoides n. sp. Darragh 2017 margin shell
Cryptospira hordeastra n. sp. Darragh 2017 margin shell
"Serrata cf. mala" = Marginella mala Cotton 1949 margin shell
Ovaginella arenula n. sp. Darragh 2017 margin shell
Ovaginella mumiformis n. sp. Darragh 2017 margin shell
 Neogastropoda - Muricidae
Hexaplex ? tridentatus Tate 1888 murex snail
Coralliophila sp. Adams and Adams 1853 murex snail
Attiliosa arenaria n. sp. Darragh 2017 murex snail
Timbellus calvus Tate 1888 mustached bat
Dermomurex sp. Monterosato 1890 murex snail
Dermomurex silicatus n. sp. Darragh 2017 murex snail
"Laevityphis ludbrookae" = Laevityphis (Laevityphis) ludbrookae Keen and Campbell 1964 murex snail
"Ocenebra prionotus" = Murex prionotus Tate 1888 murex snail
 Neogastropoda - Volutidae
Lyria craticulata n. sp. Darragh 2017 volute
Mitreola salaputium Darragh 1989 volute
 Neogastropoda - Cancellariidae
Turehua sp. Marwick 1943 snail
 Sorbeoconcha - Ranellidae
Sassia tortirostris triton shell
 Sorbeoconcha - Triviidae
Archierato pyrulata, "Triviella pompholugota" = Semitrivia pompholugota
Archierato pyrulata Tate 1890 snail
"Triviella pompholugota" = Semitrivia pompholugota Tate 1890 snail
 Sorbeoconcha - Eocypraeidae
Willungia ovulatella Tate 1890 snail
 Sorbeoconcha - Ovulidae
Phenacovolva sp. Iredale 1930 snail
 Sorbeoconcha - Cypraeidae
Zoila viathomsoni Darragh 2011 cowry
 Sorbeoconcha - Xenophoridae
Xenophora sp. Fischer von Waldheim 1807 carrier shell
 Sorbeoconcha - Naticidae
Tanea hamiltonensis Tenison Woods 1879 moon snail
? Euspirocrommium sp. Sacco 1890 moon snail
 Sorbeoconcha - Rissoidae
Rissoidae indet. Gray 1847 snail
 Sorbeoconcha - Triforidae
Cerithiella sp. Verrill 1882 snail
Cerithiella limula n. sp. Darragh 2017 snail
 Sorbeoconcha - Newtoniellidae
Ataxocerithium multicostulatum n. sp. Darragh 2017 snail
Ataxocerithium venustulum n. sp. Darragh 2017 snail
Ataxocerithium otopleuroides n. sp. Darragh 2017 snail
Ataxocerithium biaulax n. sp. Darragh 2017 snail
Eumetula sp. Thiele 1912 snail
Trituba sp. Jousseaume 1884 snail
Trituba (Granulotriforis) umboseriata n. sp. Darragh 2017 snail
 Sorbeoconcha - Cerithiopsidae
Cerithiopsidae indet. Adams and Adams 1853 snail
Seila stenopyrgisca n. sp. Darragh 2017 snail
? Cerithiopsis sp. Hanley 1849 snail
Cerithiopsis pustuloclathrata n. sp. Darragh 2017 snail
 Sorbeoconcha - Triphoridae
Costatophora pulcherrima n. sp. Darragh 2017 snail
? Viriola sp. Jousseaume 1884 snail
Mastoniaeforis pagodiformis n. sp. Darragh 2017 snail
Inella dauciformis n. sp. Darragh 2017 snail
Inella moniliferata n. sp. Darragh 2017 snail
 Heterostropha - Pyramidellidae
Turbonilla sp. Risso 1826 snail
"Pyrgiscus sp." = Turbonilla (Pyrgiscus) Philippi 1841 snail
Syrnola sp. Adams 1860 snail
 Heterostropha - Architectonicidae
 Opisthobranchia - Cylichnidae
Cylichna cf. angustata Cossman and Cossman 1897 snail
Scaphopoda
 Dentaliida - Dentaliidae
Fissidentalium mawsoni Ludbrook 1956 tusk shell