PPP# 162 - Río Calzones [Gatun Fm] (Miocene of Panama)

Also known as NMB Loc. 17619

Where: Panama (9.0° N, 80.6° W: paleocoordinates 9.2° N, 79.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Gatun Formation, Tortonian (11.6 - 7.2 Ma)

• STRATIGRAPHIC RELATIONS: The Gatun Fm rests unconformably on formations of different ages in different parts of the Panama Canal Basin. To the east of Colon, the Gatun Fm rests nonconformably on unamed Cretaceous volcanics. To the west of Colon, including several islands in Lake Gatun, the Gatun Fm rests with angular unconformity on the upper Oligocene Caimito Fm. BIOSTRATIGRAPHY: From unknown member of Gatun Fm, but most of the Gatun is Late Miocene (12.0-7.9 MY) according to Collins et al. (1999).

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified lithology not reported

• ENVIRONMENT: from Collins et al. (1999), open, inner neritic.
• GENERAL LITHOLOGY: As member is unknown, lithification fields are left blank. LITHIFICATION: lithification data not reported, but assumed to be unlithified based on observation of specimens in Woodring (1957-1982).

Size class: macrofossils

Reposited in the BMNH, NMB, USNM

Collection methods: bulk, sieve,

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. COLLECTORS: unknown (PPP staff), 8/5/87. 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 61342: authorized by Austin Hendy, entered by Austin Hendy on 05.06.2006

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.
Bivalvia
 Arcida - Glycymerididae
Tucetona sp. Iredale 1939 clam
Axinactis (Glycymerella) sp. Woodring 1925 clam
 Pectinida - Propeamussiidae
Cyclopecten sp. Verrill 1897 mud scallop
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
Argopecten sp. Monterosato 1889 calico scallop
Flabellipecten sp. Sacco 1897 scallop
 Pectinida - Anomiidae
Anomia sp. Linnaeus 1758 jingle
 Ostreida - Gryphaeidae
? Hyotissa sp. Stenzel 1971 oyster
 Carditida - Crassatellidae
Crassinella sp. Guppy 1874 clam
 Carditida - Carditidae
Carditidae indet. Fleming 1820 clam
 Pholadida - Corbulidae
Corbulidae indet. Lamarck 1818 clam
"? Varicorbula sp." = Corbula (Varicorbula) Grant and Gale 1931 clam
 Cardiida - Chamidae
Chama sp. Linnaeus 1758 jewel box
 Cardiida - Veneridae
Irus (? Irus) sp. Schmidt 1818 venus clam
Lirophora sp. Conrad 1863 venus clam
Gouldia sp. Adams 1847 venus clam
Transennella sp. Dall 1884 venus clam
Macrocallista (Megapitaria) sp. Grant and Gale 1931 venus clam
 Cardiida - Semelidae
Ervilia sp. Turton 1822 clam
 Cardiida - Cardiidae
Cardiidae indet. Lamarck 1809 cockle
 Hiatellida - Hiatellidae
? Hiatella sp. Daudin 1801 clam
 Lucinida - Lucinidae
Parvilucina sp. Dall 1901 clam
sensu-lato
 Nuculida - Nuculidae
Nucula (Nucula) sp. Lamarck 1799 nut clam
Gastropoda
 Opisthobranchia - Cylichnidae
Acteocina sp. Gray 1847 barrel-bubble
 Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789 olive snail
 Neogastropoda - Buccinidae
Cantharus sp. Röding 1798 true whelk
 Neogastropoda - Muricidae
Muricidae indet. Rafinesque 1815 murex snail
 Neogastropoda - Turridae
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
Terebra sp. Bruguière 1789 auger snail
 Vanikoroidea - Eulimidae
Eulimidae indet. Philippi 1853 snail
 Naticoidea - Naticidae
Naticidae indet. Guilding 1834 moon snail
 Vermetoidea - Vermetidae
"Petaloconchus sp." = Petaloconchus
"Petaloconchus sp." = Petaloconchus Lea 1843 worm shell
 Rissooidea - Vitrinellidae
? Vitrinella sp. Adams 1850 snail
 Truncatelloidea - Caecidae
Meioceras sp. Carpenter 1858 snail
 Sorbeoconcha - Cerithiidae
Alabina sp. Dall 1902 cerith snail
 Heterostropha - Ringiculidae
 Architectonicoidea - Architectonicidae
Architectonica sp. Röding 1798 sundial
 Turbinoidea - Phasianellidae
Tricolia sp. Risso 1826 snail
 Trochoidea - Trochidae
Solariella sp. Wood 1842 top snail
? Calliostoma sp. Swainson 1840 top snail
Gymnolaemata
 Cheilostomata - Quadricellariidae
Nellia tenella Lamarck 1816
 Cheilostomata - Lepraliellidae
Celleporaria sp. Lamouroux 1821
 Cheilostomata - Mamilloporidae
 Cheilostomata -
 Cheilostomata - Stomachetosellidae
 Cheilostomata - Microporellidae
 Cheilostomata - Schizoporellidae
 Cheilostomata - Phidoloporidae
 Cheilostomata - Bitectiporidae
 Cheilostomata - Cupuladriidae
 Cheilostomata - Onychocellidae
 Cheilostomata - Microporidae
Micropora coriacea Johnston 1847
 Cheilostomata - Membraniporidae
Biflustra savartii Audouin 1826
 Cheilostomata - Gemelliporellidae
 Cheilostomata - Antroporidae