NMB 18985 - Río Indio [Río Indio facies, Chagres Sandstone] (Miocene of Panama)

Where: Panama (9.2° N, 80.3° W: paleocoordinates 8.9° N, 78.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Río Indio Member (Chagres Sandstone Formation), Tortonian (11.6 - 7.2 Ma)

• LITHOSTRATIGRAPHY: Chagres Sandstone overlies and partly overlaps the Gatun Fm. Calcareous strata at the base of the formation throughout most of the outcrop area in the Canal Zone constitutes the Toro Limestone Mbr. The Chagres Sandstone is as much as 1000 ft thick. AGE: Late Miocene (late Tortonian-Messinian) according to Collins and Coates 1999), but Río Indio facies are also thought to be Pliocene in age; Sr dating by the enterer (Hendy, unpubl.) indicates an age of approximately 7.6 Ma. STRATIGRAPHIC POSITION: From the Río Indio facies.

• bed-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, gray siltstone

• No specific environmental data presented.
• GENERAL LITHOLOGY: Grey silts.

Size class: macrofossils

Collected by Jung et al. in 1998; reposited in the NMB

Collection methods: bulk, sieve,

• COLLECTOR: Jung, Coates, Todd, Fortunato & Aguilera, 16.1.1998. RESPOSITORY: NMB, Basel, Switzerland.

Primary reference: B. Landau, R. E. Petit, and C. M. Silva. 2012. New Cancellariidae (Mollusca, Gastropoda) from the Miocene Gatun Formation of Panama, with eleven new species. Journal of Paleontology 86(6):907-930 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136006: authorized by Austin Hendy, entered by Austin Hendy on 14.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to tonnoidean gastropods. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Bivalvia
 Arcida - Arcidae
Anadara (Sectiarca) sp. Olsson 1961 ark
Anadara (Tosarca) sp. Noda 1965 ark
 Pectinida - Pectinoidae
Amusium sp. Röding 1798 scallop
Amusium mimyum Woodring 1982 scallop
 Ostreida - Gryphaeidae
Hyotissa sp. Stenzel 1971 oyster
 Ostreida - Pinnidae
Atrina sp. Gray 1842 oyster
 Pholadida - Corbulidae
Caryocorbula sp. Gardner 1926 clam
"Varicorbula sp." = Corbula (Varicorbula) Grant and Gale 1931 clam
 Cardiida - Veneridae
Lirophora (Panchione) sp., "Agriopoma (Pitarella) sp." = Agriopoma
Lirophora (Panchione) sp. Olsson 1964 venus clam
"Agriopoma (Pitarella) sp." = Agriopoma Dall 1902 venus
 Nuculida - Nuculidae
Acila sp. Adams and Adams 1858 divaricate nutclam
 Protobranchia - Nuculanidae
Saccella sp. Woodring 1925 pointed nut clam
Gastropoda
 Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789 olive snail
 Neogastropoda - Columbellidae
Strombina (Strombina) sp. Mörch 1858 snail
 Neogastropoda - Buccinidae
Antillophos (Antillophos) sp. Woodring 1928 true whelk
 Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806 snail
 Neogastropoda - Fasciolariidae
Fasciolaria sp. Lamarck 1799 tulip snail
 Neogastropoda - Cancellariidae
Cancellaria sathra Woodring 1973 snail
"Cancellaria (Massyla) sp." = Massyla Adams and Adams 1854 snail
 Neogastropoda - Drilliidae
Hindsiclava sp. Hertlein and Strong 1955 snail
Agladrillia (Eumetadrillia) sp. Woodring 1928 snail
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
Terebra (Oreoterebra) sp. Olsson 1967 auger snail
 Naticoidea - Naticidae
Stigmaulax sp. Morch 1852 moon snail
Polinices sp. Monfort 1810 moon snail
 Tonnoidea - Cassidae
Sconsia sp., "Semicassis (Tylocassis) granulata" = Semicassis granulata
Sconsia sp. Gray 1847 snail
"Semicassis (Tylocassis) granulata" = Semicassis granulata Born 1778 snail
 Rissooidea - Vitrinellidae
Anticlimax (Subclimax) sp. Pilsbry and McGinty 1946 snail
 Architectonicoidea - Architectonicidae
Architectonica sp. Röding 1798 sundial
Scaphopoda
 Gadilida - Gadilidae
Polyschides sp. Pilsbry 1898 tusk shell