E-1 (1900-2000 ft), Eniwetok Atol (Miocene of Marshall Islands)

Where: Marshall Islands (11.4° N, 162.4° 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 1900-2000 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: poorly lithified, shelly/skeletal carbonate

• ENVIRONMENT: Carbonate facies. Shallow water, presumably reefal. No paleoenvironmental data presented.
• LITHOLOGY: Not stated, but presumably carbonate. 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. 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 77980: authorized by Austin Hendy, entered by Austin Hendy on 24.01.2008

Creative Commons license: CC0 (CC0)

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 aff. laeta" = Collonista, "Leptothyra wellsi" = Collonista
"Leptothyra aff. laeta" = Collonista snail
"Leptothyra wellsi" = Collonista snail
 Sorbeoconcha - Rissoidae
"Alvania (Taramellia) kenneyi" = Manzonia (Alvinia), Rissoina (Rissoina) ailinana
"Alvania (Taramellia) kenneyi" = Manzonia (Alvinia) snail
 Sorbeoconcha - Plesiotrochidae
Plesiotrochus talinana
 Cerithioidea - Diastomatidae
Obtortio failingi