K-1B (800-900 ft), Eniwetok Atol (Miocene of Marshall Islands)

Where: Marshall Islands (11.7° N, 162.3° E: paleocoordinates 8.8° N, 168.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Late/Upper Miocene (11.6 - 5.3 Ma)

• STRATIGRAPHIC RELATIONS: From an undifferentiated lithostratigraphic unit. AGE: Late Miocene, on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: A composite list from several beds within this section of drill core, from 800-900 ft.

• group of beds-level stratigraphic resolution

Environment/lithology: unlithified lithology not reported

• ENVIRONMENT: Carbonate facies. Shallow water. No paleoenvironmental data presented.
• SPECIFIC LITHOLOGY: Not stated in text, probably carbonate. LITHIFICATION: Unlithified, based on figured specimens and facies description.

Size class: macrofossils

Collected by ONR and USGS in 1951; reposited in the UNSM

Collection methods: core,

• COLLECTOR: Office of Naval Research and USGS, 1951. 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 77991: 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 for gastropoda. NOMENCLATURE: An authoritative publication with relatively modern nomenclature, subgenus- and species-level identifications. IDENTIFIER: H. S. Ladd.
Gastropoda
 Trochoidea - Turbinidae
"Leptothyra masculosa" = Collonista, "Astraea (Bellastraea) "sp. D"" = Astralium
"Leptothyra masculosa" = Collonista snail
"Astraea (Bellastraea) "sp. D"" = Astralium Link 1807 snail
 Trochoidea - Skeneidae
Haplocochlias "sp. A" Carpenter 1864 snail
 Sorbeoconcha - Rissoidae
 Sorbeoconcha - Cerithiopsidae
"Seila (Notoseila) waluensis" = Notoseila1
"Seila (Notoseila) waluensis" = Notoseila1 snail
 Sorbeoconcha - Vermetidae
"Petaloconchus (Macrophragma) merkana" = Macrophragma1
"Petaloconchus (Macrophragma) merkana" = Macrophragma1 worm shell
 Neogastropoda - Muricidae
"Coralliophila (Fusomurex) "sp. A"" = Hirtomurex2
"Coralliophila (Fusomurex) "sp. A"" = Hirtomurex2 Coen 1922 murex snail
 Sorbeoconcha - Vitrinellidae
 Sorbeoconcha - Tornidae
 Sorbeoconcha - Iravadiidae
 Sorbeoconcha - Caecidae
 Sorbeoconcha - Plesiotrochidae
 Neritoidea - Neritidae