Where: Guam (13.5° N, 144.8° E: paleocoordinates 13.4° N, 145.3° E)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Mariana Limestone Formation, Pliocene to Pliocene (5.3 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Mariana Limestone, which overlies the Alifan Limestone (Late Miocene) and is overlain by Quaternary beach deposits. AGE: Pliocene-Pleistocene on the basis of foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: Composite list undifferentiated Mariana Limestone localities.

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the USNM

Collection methods: surface (in situ),

• COLLECTORS: Multiple collectors, including Cloud, Schmidt, and Burke (1948-1949, 1953), and Ladd (1958). REPOSITORY: USNM (formely USGS collections).

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 77937: authorized by Austin Hendy, entered by Austin Hendy on 23.01.2008

Creative Commons license: CC BY (attribution)