E-1 (900-1000 ft), Eniwetok Atol (Miocene of Marshall Islands)

Where: Marshall Islands (11.4° N, 162.4° E: paleocoordinates 7.0° N, 172.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Middle Miocene (16.0 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Middle Miocene, on the basis of foraminiferal biostratigraphy and stratigraphic position. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 900-1000 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: unlithified, shelly/skeletal carbonate

• ENVIRONMENT: Carbonate facies. Shallow water, presumably reefal. No paleoenvironmental data presented.
• LITHOLOGY: Not stated, but presumably carbonate. LITHIFICATION: Unlithified, on the basis of figured specimens.

Size class: macrofossils

Collected by ONR and USGS in 1952; reposited in the USNM

Collection methods: core,

• COLLECTOR: Office of Naval Research and USGS, 1952. REPOSITORY: USNM.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 77978: authorized by Austin Hendy, entered by Austin Hendy on 24.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COEVERAGE: Representative, but not exhaustive of bivalvia and gastropoda. NOMENCLATURE: Mixture of some slightly antiquated and broad identifications and more modern nomenclature, subgenus- and species-level identifications from an authoritative publication. IDENTIFIER: H. S. Ladd.
Gastropoda
 Triphoroidea - Triphoridae
"Triphora (Inella) pyramidalis" = Inella1, "Triphora (Inella) maharatai" = Inella1
"Triphora (Inella) pyramidalis" = Inella1 snail
"Triphora (Inella) maharatai" = Inella1 snail
 Triphoroidea - Cerithiopsidae
 Neogastropoda - Fasciolariidae
 Vanikoroidea - Hipponicidae
 Vanikoroidea - Eulimidae
Eulima "sp. A"3 Risso 1826 snail
 Rissooidea - Rissoidae
 Truncatelloidea - Caecidae
 Sorbeoconcha - Cerithiidae
 Turbinoidea - Turbinidae
 Trochoidea - Liotiidae
"Cyclostremiscus (Cyclostremiscus) emeryi" = Lodderena emeryi
"Cyclostremiscus (Cyclostremiscus) emeryi" = Lodderena emeryi Ladd 1966 snail