PPP# 297 - Cayo Agua [Cayo Agua Fm] (Pliocene of Panama)

Also known as NMB Loc. 17812

Where: Bocas, Panama (9.2° N, 82.0° W: paleocoordinates 9.1° N, 81.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Cayo Agua Formation (Bocas del Toro Group), Piacenzian (3.6 - 2.6 Ma)

• STRATIGRAPHIC RELATIONS: the Cayo Agua Fm is equivalent in age to the upper part of the Shark Hole Point Fm and the lower part of the Escudo de Veraguas Fm, no contacts are known. BIOSTRATIGRAPHY: from Collins et al. (1999); direct date extrapolated from Cheetham et al. (1999).

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified, bioturbated, shelly/skeletal, gray, blue, argillaceous, silty sandstone

• ENVIRONMENT: from Collins et al. 1999 (p. 94), open inner neritic, estimated depth of 30 m.
• GENERAL LITHOLOGY: from Collins et al. 1999 (p. 29), pervasively bioturbated gray blue, muddy, silty, lithic sandstone with comon horizons of abundant thick shelled mollusks and ahermatypic corals.

Size class: macrofossils

Preservation: original calcite

Reposited in the BMNH, NMB, USNM

Collection methods: bulk, sieve,

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. COLLECTORS: unknown (PPP staff), 5/30/88. 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 80000: authorized by Austin Hendy, entered by Kate Bulinski on 31.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution. IDENTIFIER: presumably identified by J. Jackson, J. Todd, H. Fortunato, and P. Jung.
Gastropoda
 Heterostropha - Ringiculidae
 Heterostropha - Pyramidellidae
Turbonillinae indet. Bronn 1849 snail
 Cerithioidea - Cerithiidae
Alabina sp. Dall 1902 cerith snail
 Cerithioidea - Turritellidae
Turritella sp. Lamarck 1799 turret shell
 Sorbeoconcha - Naticidae
Natica (Natica) sp. Scopoli 1777 moon snail
 Sorbeoconcha - Rissoidae
Alvania sp. Risso 1826 snail
 Sorbeoconcha - Vitrinellidae
Cyclostremiscus sp. Pilsbry and Olsson 1945 snail
 Sorbeoconcha - Vermetidae
Serpulorbis sp. Sasso 1827 worm shell
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Olividae
Olivella (Macgintiella) sp. Olsson 1956 olive snail
 Neogastropoda - Muricidae
Vitularia sp., Haustellum sp., "Chicoreus (Phyllonotus) sp." = Phyllonotus
Vitularia sp. Swainson 1840 murex snail
Haustellum sp. Schumacher 1817 murex snail
"Chicoreus (Phyllonotus) sp." = Phyllonotus Swainson 1830 murex snail
 Neogastropoda - Marginellidae
Prunum sp. Swainson 1840 margin shell
 Neogastropoda - Volutidae
Voluta sp. Linnaeaus 1758 volute
 Sorbeoconcha - Strombidae
Strombus sp. Linnaeus 1758 conch
 Sorbeoconcha - Cassidae
Sconsia sp. Gray 1847 snail
 Sorbeoconcha - Bursidae
Marsupina bufo BruguiƩre 1792 frog shell
 Opisthobranchia - Retusidae
Sulcoretusa sp. Burch 1945 snail
Volvulella (Volvulella) sp. Newton 1891 snail
 Thecosomata - Cavoliniidae
Styliola sp. Gray 1850 snail
 Thecosomata - Limacinidae
Limacina sp. Bosc 1817 snail
Scaphopoda
 Gadilida - Gadilidae
Cadulus sp. Philippi 1844 tusk shell
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
sensu lato
Bivalvia
 Ostreida - Malleidae
Isognomon sp. Lightfoot 1786 oyster
 Pectinida - Propeamussiidae
Cyclopecten sp. Verrill 1897 mud scallop
 Pectinida - Pectinoidae
? Argopecten sp. Monterosato 1889 calico scallop
 Arcida - Glycymerididae
Tucetona sp. Iredale 1939 clam
 Mytilida - Crenellidae
Crenella sp. Brown 1827 clam
 Carditida - Crassatellidae
Crassinella sp. Guppy 1874 clam
 Poromyida - Verticordiidae
Trigonulina sp. d'Orbigny 1946 clam
 Cardiida - Tellinidae
? Tellina sp. Linnaeus 1758 tellin clam
 Cardiida - Chamidae
Chama sp. Linnaeus 1758 jewel box
 Cardiida - Veneridae
Gouldia sp. Adams 1847 venus clam
 Pholadida - Corbulidae
? Caryocorbula sp. Gardner 1926 clam
 Lucinida - Lucinidae
Parvilucina sp. Dall 1901 clam
sensu lato