E-1 (0-100 ft), Eniwetok Atol: Holocene, Marshall Islands
collected by ONR and USGS 1952

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Tubothalamea - Miliolida - Soritidae
Marginopora sp.
Calcarinidae
Calcarina sp.
Angiospermae - Magnoliales - Myristicaceae
Virola pagoda
Ladd 1972
Virola incisa
Ladd 1972
Ulvophyceae - Bryopsidales - Halimedaceae
Halimeda sp. Lamouroux 1812
Polyplacophora - Neoloricata - Schizochitonidae
Loricella informal sp. A Pilsbry 1893
Ladd 1966
Gastropoda - Skeneidae
Munditiella parryensis
Ladd 1966
Leucorhynchia caledonica
Ladd 1966
Leucorhynchia crossei
Ladd 1966
Gastropoda - Phasianellidae
Phasianella sp. Lamarck 1804
Ladd 1966
Tricolia (Hiloa) variabilis (Pease 1860)
Ladd 1966
Gastropoda - Turbinidae
Leptothyra masculosa
Ladd 1966
synonym of Collonista
Leptothyra picta
Ladd 1966
synonym of Collonista
Leptothyra inepta (Gould 1861)
Ladd 1966
Leptothyra aff. candida (Pease 1860)
Ladd 1966
Gastropoda - Trochidae
Synaptocochlea concinna (Gould 1845)
Ladd 1966
Synaptocochlea rosacea (Pease 1867)
Ladd 1966
Hybochelus cancellatus (Krauss 1848)
Ladd 1966
Isanda (Parminolia) apicina (Gould 1862)
Ladd 1966
Gastropoda - Eucyclidae
Euchelus (Euchelus) cf. quadricarinatus (Dilwyn 1817)
Ladd 1966
Euchelus (Vaceuchelus) informal sp. A Iredale 1929
Ladd 1966
Euchelus (Vaceuchelus) angulatus (Pease 1867)
Ladd 1966
Euchelus (Herpetopoma) instrictus (Gould 1849)
Ladd 1966
Gastropoda - Lepetellida - Fissurellidae
Hemitoma (Montfortia) informal sp. A (Recluz 1843)
Ladd 1966
Rimula sp. Defrance 1827
Ladd 1966
Emarginula (Emarginula) cf. peasei
Ladd 1966
Emarginula (Emarginula) bicancellata (Montrouzier 1860)
Ladd 1966
Emarginula (Emarginula) cf. clypeus (Adams 1852)
Ladd 1966
Emarginula (Subzeidora) souverbiana
Ladd 1966
Diodora (Elegidon) aff. granifera Pease 1861
Ladd 1966
Gastropoda - Lepetellida - Scissurellidae
Scissurella (Scissurella) declinans (Watson 1886)
Ladd 1966
Scissurella (Scissurella) coronata (Watson 1886)
Ladd 1966
Gastropoda - Lepetellida - Anatomidae
Scissurella (Anatoma) equatoria (Hedley 1899)
Ladd 1966
Gastropoda - Epitoniidae
Epitonium (Gyroscala) perplexum
Ladd 1972
Gastropoda - Eulimidae
Eulima informal sp. A Risso 1826
Ladd 1982
Gastropoda - Cerithiidae
Bittium (Bittium) impendens
Ladd 1972
Bittium (Bittium) ianthinum
Ladd 1972
Cerithium (Conocerithium) egenum
Ladd 1972
synonym of Cerithium
Gastropoda - Neogastropoda - Columbellidae
Pyrene obtusa
Ladd 1977
Zafrona lifuana
Ladd 1977
Euplica varians
Ladd 1977
Columbella pardalina
Ladd 1977
Gastropoda - Neogastropoda - Muricidae
Coralliophila (Coralliophila) sp. Adams and Adams 1853
Ladd 1977
Pterynotus sp. Swainson 1833
Ladd 1977
Drupa (Morula) concatenata
Ladd 1982
original and current combination Morula
Gastropoda - Personidae
Distorsio (Rhysema) pusilla
Ladd 1977
synonym of Distorsio
Gastropoda - Cypraeidae
Cypraea (Pustilaria) childreni Gray 1825
Ladd 1977
recombined as Ipsa childreni
Cypraea (Luria) isabella (Linnaeus 1758)
Ladd 1977
recombined as Luria isabella
Pedicularia (Pediculariona) pacifica (Pease 1865)
Ladd 1977
original and current combination Pedicularia pacifica
Gastropoda - Rissoidae
Zebina (Morchiella) cooperi
Ladd 1966
Rissoina (Schwartziella) aff. flexuosa
Ladd 1966
Rissoina (Rissolina) turricula
Ladd 1966
Rissoina (Rissoina) ekkanana
Ladd 1966
Gastropoda - Atlantidae
Atlanta peronii
Ladd 1977
Gastropoda - Newtoniellidae
Ataxocerithium eniwetokensis
Ladd 1972
Gastropoda - Triphoridae
Triphora (Inforis) albogranosa
Ladd 1972
Triphora (Triphora) pallida
Ladd 1972
Triphora (Mastonia) squamosa
Ladd 1972
Gastropoda - Neritidae
Pisulina adamsiana Nevill and Nevill 1869
Ladd 1977
see common names

Geography
Country:Marshall Islands
Coordinates: 11.4° North, 162.4° East (view map)
Paleocoordinates:11.4° North, 162.4° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Quaternary Epoch:Holocene
Key time interval:Holocene
Age range of interval:0.01170 - 0.00000 m.y. ago
Stratigraphy
Local section:E-1 Local bed:50 ft
Local order:top to bottom
Regional section:Eniwetok Atol Regional bed:50 ft
Regional order:top to bottom
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Holocene, on the basis of stratigraphic position. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 0-100 ft.
Lithology and environment
Primary lithology:pebbly,shelly/skeletal unlithified calcareous sandstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Sand, uncemented, made up largely of worn tests of beach-type foraminifera mixed with coral pebbles, mollusk shells, echinoid spines, Halimeda. LITHIFICATION: Poorly-lithified, on the basis of facies description.
Environment:carbonate indet.
Geology comments: ENVIRONMENT: Carbonate facies. Shallow water, presumably reefal. No paleoenvironmental data presented.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:core,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:ONR and USGS Collection dates:1952
Collection method comments: COLLECTOR: Office of Naval Research and USGS, 1952. REPOSITORY: USNM.
Taxonomic list comments:COVERAGE: Not quite exhaustive, but comprehensive for gastropods. Bivalves not covered in publications. NOMENCLATURE: Authoritative publication, with moderately modern nomenclature, with subgenus and species-resolution assignments. IDENTIFIER: H. S. Ladd.
Metadata
Database number:43306
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-08-11 13:31:22 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2005-08-11 13:31:22
Creative Commons license:CC BY
Reference information

Primary reference:

11427. H. S. Ladd and S.O. Schlanger. 1960. Drilling operations on Eniwetok Atoll. United States Geological Survey Professional Paper 260(Y):863-903 [A. Miller/A. Hendy/A. Hendy]

Secondary references:

26223 H. S. Ladd. 1966. Chitons and Gastropods (Haliotidae through Adeorbidae) from Western Pacific Islands. United States Geological Survey Professional Paper 531:1-98 [A. Hendy/A. Hendy/J. Millet]
11409 H. S. Ladd. 1972. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Turritellidae through Strombidae). United States Geological Survey Professional Paper 532:1-79 [A. Miller/A. Hendy/A. Hendy]
11410 H. S. Ladd. 1977. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Eratoidae through Harpidae). United States Geological Survey Professional Paper 533:1-84 [A. Miller/A. Hendy/J. Millet]
26328 H. S. Ladd. 1982. Cenozoic fossil mollusks from Western Pacific Islands; Gastropods (Volutidae through Terebridae). United States Geological Survey Professional Paper 1171:1-100 [A. Hendy/A. Hendy]