PPP# 411 Valiente Peninsula [Nancy Point Fm] (Miocene of Panama)

Also known as NMB Loc. 17861

Where: Bocas, Panama (9.1° N, 81.8° W: paleocoordinates 9.8° N, 80.9° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nancy Point Formation (Bocas del Toro Group), Messinian (7.2 - 5.3 Ma)

• STRATIGRAPHIC RELATIONS: the Nancy Point Fm is conformable with the Tobabe Fm below and the Shark Hole Point Fm above. BIOSTRATIGRAPHY: from Collins et al. (1999), an age range of 8.2-5.6 Ma, Late Miocene, though PPP dataset indicates an age of 6.5-5.6 Ma. Local Section name, Valiente.

• bed-level stratigraphic resolution

Environment/lithology: offshore; unlithified, bioturbated, shelly/skeletal, silty sandstone and poorly lithified, shelly/skeletal, argillaceous, carbonaceous siltstone

• ENVIRONMENT: from Collins et al. 1999 (p. 94), outer neritic, estimated depth of 175 m.
• GENERAL LITHOLOGY: from Collins et al. 1999 (p. 27), consists of massive, pervasively bioturbated, shelly, muddy, and silty sandstone, muddy siltstone, with scattered molluscs, leaves, and plant fragments.

Size class: macrofossils

Collected by Jung et al. in 1988; reposited in the NMB

Collection methods: bulk, sieve,

• COLLECTORS: Peter Jung, D. Geary & L. Anderson, 7.6.1988. REPOSITORIES:collections presumably held at USNM, BMNH and Naturhistorisches Museum Basel (NMB),

Primary reference: L. S. Collins and A. G. Coates. 1999. A paleobiotic survey of Caribbean faunas from the Neogene of the Isthmus of Panama. Bulletins of American Paleontology (357) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 79795: authorized by Arnold Miller, entered by Kate Bulinski on 24.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution.
Gastropoda
 Neogastropoda - Turridae
Turridae indet. Swainson 1840 turrid
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891 auger snail
 Neogastropoda - Buccinidae
Antillophos (Rhipophos) sp. Woodring 1964 true whelk
 Neogastropoda - Marginellidae
Volvarina sp. Hinds 1844 margin shell
 Neogastropoda - Costellariidae
Uromitra sp. Bellardi 1887 ribbed mitre
 Pseudomelanoidea - Pseudomelaniidae
Compsodrillia sp. Woodring 1928 snail
Scaphopoda
 Dentaliida - Dentaliidae
Fissidentalium sp. Fischer 1885 tusk shell
Bivalvia
 Arcida - Arcidae
Anadara (Rasia) sp. Gray 1857 ark