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

Where: Marshall Islands (11.7° N, 162.3° E: paleocoordinates 7.3° N, 172.3° 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 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 77992: 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
"Astraea (Astralium) "sp. B"" = Astralium, "Leptothyra harlani" = Collonista, "Leptothyra aff. laeta" = Collonista
"Astraea (Astralium) "sp. B"" = Astralium Link 1807 snail
"Leptothyra harlani" = Collonista snail
"Leptothyra aff. laeta" = Collonista snail
 Trochoidea - Liotiidae
"Liotina (Dentarene) "sp. A"" = Dentarene
"Liotina (Dentarene) "sp. A"" = Dentarene Iredale 1929 snail
 Trochoidea - Trochidae
Gibbula (Gibbula) engebiensis Ladd 1966 top snail
 Heterostropha - Architectonicidae
"Philippia (Psilaxis) radiata" = Psilaxis1
"Philippia (Psilaxis) radiata" = Psilaxis1 snail
 Sorbeoconcha - Plesiotrochidae
 Sorbeoconcha - Iravadiidae
 Sorbeoconcha - Caecidae
 Sorbeoconcha - Adeorbidae
 Sorbeoconcha - Rissoidae
 Neogastropoda - Olividae
 Neogastropoda - Muricidae
"Coralliophila (Fusomurex) "sp. A"" = Hirtomurex2
"Coralliophila (Fusomurex) "sp. A"" = Hirtomurex2 Coen 1922 murex snail
 Neogastropoda - Costellariidae
 Neogastropoda - Fasciolariidae
 Neritoidea - Neritidae