PRI Pitt Coll. - Isla Payardi [middle Gatun Fm] (Miocene of Panama)

Also known as PRI Acc. 1267; GA-1

Where: Panama (9.4° N, 79.8° W: paleocoordinates 9.1° N, 78.5° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: middle Gatun Member (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. AGE: Late Miocene, on the basis of microfossil biostratigraphy (see Collins and Coates, 1999), refined by enterer to Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 10.5 Ma (Hendy, unpublished data).

• bed-level stratigraphic resolution

Environment/lithology: coastal; unlithified siliciclastic sediments

• ENVIRONMENT: from Collins et al. (1999), open, inner neritic.
• LITHOLOGY: Not recorded, but certainly silciclastic. LITHIFICATION: Unlithified, on the basis of observation of specimens.

Size class: macrofossils

Collected by Pitt; reposited in the PRI

Collection methods: bulk, sieve,


Primary reference: A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 82128: authorized by Austin Hendy, entered by Austin Hendy on 23.07.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: Base off of older literature (Woodring, 1957-1980), and therefore variable in quality and resolution. IDENTIFIER A. Hendy and C. Ferguson.
Annelida indet. Lamarck 1809
 Arcida - Arcidae
 Pectinida - Pectinoidae
Leptopecten ecnomius Woodring 1982 scallop
 Ostreida - Gryphaeidae
Hyotissa haitensis Sowerby 1850 oyster
 Carditida - Crassatellidae
 Cardiida - Chamidae
Chama berjadinensis Hodson 1927 jewel box
 Neogastropoda - Olividae
"Oliva (Oliva) gatunensis" = Oliva gatunensis, Olivella (Niteoliva) terryi
"Oliva (Oliva) gatunensis" = Oliva gatunensis Toula 1908 olive snail
Olivella (Niteoliva) terryi Olsson 1956 olive snail
 Neogastropoda - Columbellidae
Strombina (Strombina) lessepsiana Brown and Pilsbry 1911 snail
 Neogastropoda - Buccinidae
Antillophos candeanus d'Orbigny 1842 true whelk
 Neogastropoda - Cancellariidae
Trigonostoma sp. Blainville 1827 snail
Bivetiella dariena2 Toula 1908 snail
 Neogastropoda - Muricidae
Eupleura thompsoni Woodring 1959 murex snail
Poirieria (Panamurex) gatunensis Brown and Pilsbry 1911 murex snail
 Neogastropoda - Drilliidae
Clathrodrillia gatunensis, "Crassispira (Crassispira) consors" = Hindsiclava consors
Clathrodrillia gatunensis Toula 1909 snail
"Crassispira (Crassispira) consors" = Hindsiclava consors Sowerby 1850 snail
 Neogastropoda - Turridae
"Carinodrillia (Carinodrillia) zooki" = Carinodrillia zooki, Polystira sp.
"Carinodrillia (Carinodrillia) zooki" = Carinodrillia zooki Brown and Pilsbry 1911 turrid
Polystira sp. Woodring 1928 turrid
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
Conus aemulator Brown and Pilsbry 1911 cone shell
 Neogastropoda - Terebridae
Oreoterebra sp. Olsson 1967 auger snail
Panaterebra cucurrupiensis Oinomikado 1939 auger snail
 Naticoidea - Naticidae
Stigmaulax guppiana Toula 1909 moon snail
Polinices stanislasmeunieri Maury 1917 moon snail
 Calyptraeoidea - Calyptraeidae
Crucibulum (Dispotaea) springvaleense Rutsch 1942 slipper shell
Crucibulum (Crucibulum) sp. Schumacher 1817 slipper shell
 Tonnoidea - Bursidae
Bursa rugosa1 Sowerby 1835 frog shell
 Sorbeoconcha - Turritellidae
Torcula altilira turret shell
Turritella gatunensis Conrad 1857 turret shell
 Architectonicoidea - Architectonicidae
"Architectonica (Architectonica) nobilis" = Architectonica nobilis
"Architectonica (Architectonica) nobilis" = Architectonica nobilis Röding 1798 sundial