E-1 (1700-1800 ft), Eniwetok Atol (Miocene of Marshall Islands)

Where: Marshall Islands (11.4° N, 162.4° E: paleocoordinates 6.0° N, 176.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Early/Lower Miocene (23.0 - 16.0 Ma)

• STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Early Miocene, on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 1700-1800 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: poorly lithified, shelly/skeletal, gray limestone

• ENVIRONMENT: Carbonate facies. Shallow water, presumably reefal. No paleoenvironmental data presented.
• SPECIFIC LITHOLOGY: Limestone, gray, porous, friable, foraminiferal. LITHIFICATION: Poorly-llithified, 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 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 43318: authorized by Austin Hendy, entered by Austin Hendy on 11.08.2004

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.
Show authors, comments, and common names
Gastropoda
 Trochoidea - Turbinidae
"Leptothyra glareosa" = Collonista glareosa1
"Leptothyra glareosa" = Collonista glareosa1 Gould 1861 snail
 Vanikoroidea - Vanikoridae
Vanikoro cancellata2
Vanikoro cancellata2 Lamarck 1822 snail
 Cerithioidea - Diastomatidae
Obtortio failingi2, Obtortio dancei2
 Cerithioidea - Cerithiidae
"Bittium (Bittiolum) toddae" = Bittiolum2
"Bittium (Bittiolum) toddae" = Bittiolum2 cerith snail
 Sorbeoconcha - Rissoidae
Rissoina (Phosinella) bikiniensis1, "Alvania (Taramellia) kenneyi" = Manzonia (Alvinia)1
"Alvania (Taramellia) kenneyi" = Manzonia (Alvinia)1 snail
 Sorbeoconcha - Triphoridae
Triphora sp.
Triphora sp. Blainville 1828 snail
1Ladd 1966; 2Ladd 1972