PPP# 221 - Sabanita [lower Gatun Fm]: Tortonian, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Carditesine sp.
1 specimen
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
2 specimens
Gastropoda - Eulimidae
Niso sp. Risso 1826
4 specimens
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula sp. Lamarck 1799
1 specimen
Crucibulum (Crucibulum) sp. Schumacher 1817
2 specimens
Calyptraea sp. Lamarck 1799
1 specimen
Gastropoda - Cerithiidae
? Bittium sp. Gray 1847
4 specimens
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
113 specimens
Gastropoda - Naticidae
Polinices sp. Monfort 1810
27 specimens
Neverita (Glossaulax) sp. (Pilsbry 1929)
18 specimens
Natica (Naticarius) sp. (Dumeril 1806)
15 specimens
original and current combination Naticarius
Gastropoda - Bursidae
Bursa rugosa (Sowerby 1835)
1 specimen
Gastropoda - Personidae
Distorsio decussata (Valenciennes 1832)
1 specimen
Gastropoda - Tonnidae
Malea sp. Valenciennes 1833
4 specimens
Gastropoda - Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789
7 specimens
Olivella (Niteoliva) sp. Olsson 1956
4 specimens
Gastropoda - Neogastropoda - Cancellariidae
Euclia dinota (Woodring 1970)
Jung 1989 1 specimen
Pyruclia tweedledee Landau et al. 2012
Landau et al. 2012 5 specimens
Cancellaria sp. Lamarck 1799
3 specimens
sensu lato
Cancellaria acalypta Woodring 1970
Landau et al. 2012 1 specimen
Bivetiella dariena (Toula 1908)
Landau et al. 2012 6 specimens
Gastropoda - Neogastropoda - Buccinidae
Cymatophos sp. Pilsbry and Olsson 1941
83 specimens
Solenosteira sp. Dall 1890
2 specimens
Gastropoda - Neogastropoda - Melongenidae
Melongena sp. Schumacher 1817
2 specimens
Gastropoda - Neogastropoda - Nassariidae
Calophos sp. Woodring 1964
1 specimen
Gastropoda - Neogastropoda - Muricidae
Eupleura sp. Adams and Adams 1853
2 specimens
Gastropoda - Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891
11 specimens
Gastropoda - Neogastropoda - Conidae
Conus sp. Linnaeus 1758
2 specimens
Gastropoda - Neogastropoda - Mangeliidae
Ithycythara sp. Woodring 1928
1 specimen
Gastropoda - Neogastropoda - Drilliidae
Agladrillia (Agladrillia) sp. Woodring 1928
2 specimens
Gastropoda - Heterostropha - Pyramidellidae
Turbonillinae indet. Bronn 1849
1 specimen
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
39 specimens
Gastropoda - Skeneidae
Solariorbis sp. Conrad 1865
1 specimen
Gastropoda - Opisthobranchia - Cylichnidae
Acteocina sp. Gray 1847
1 specimen
Bivalvia - Pholadida - Corbulidae
Bothrocorbula (Hexacorbula) sp. (Olsson 1932)
3 specimens
spelled with current rank as Hexacorbula
Caryocorbula sp. (Gardner 1926)
4 specimens
original and current combination Corbula (Caryocorbula)
Bivalvia - Cardiida - Chamidae
Arcinella sp. Schumacher 1817
12 specimens
Bivalvia - Cardiida - Veneridae
Macrocallista (Megapitaria) sp. (Grant and Gale 1931)
11 specimens
Chionopsis sp. Olsson 1932
9 specimens
Bivalvia - Cardiida - Tellinidae
? Eurytellina sp. Fischer 1887
1 specimen
spelled with current rank as Tellina (Eurytellina)
Bivalvia - Cardiida - Semelidae
Semele sp. Schumacher 1817
2 specimens
Ervilia sp. Turton 1822
47 specimens
Bivalvia - Cardiida - Cardiidae
Trigoniocardia sp. Dall 1900
6 specimens
sensu lato
Cardium sp. Linnaeus 1758
4 specimens
Bivalvia - Carditida - Crassatellidae
Crassinella sp. Guppy 1874
16 specimens
Bivalvia - Pectinida - Pectinidae
Leptopecten sp. Verrill 1897
18 specimens
Bivalvia - Arcida - Arcidae
Anadara (Rasia) sp. (Gray 1857)
26 specimens
see common names

Geography
Country:Panama State/province:Colon
Coordinates: 9.4° North, 79.8° West (view map)
Paleocoordinates:9.1° North, 78.4° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
Stage:Tortonian 10 m.y. bin:Cenozoic 6
Key time interval:Tortonian
Age range of interval:11.63000 - 7.24600 m.y. ago
Age estimate:11.3 Ma (other)
Stratigraphy
Formation:Gatun Member:lower Gatun
Stratigraphic resolution:bed
Stratigraphy comments: 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. Locality: Sabanita to Payardi. AGE: Tortonian based on more recent dating (Hendy, 2012). Sr dating for nearby sections indicates an age of approximately 11.3 Ma (Hendy, unpublished data).
Lithology and environment
Primary lithology:gray,green unlithified siltstone
Secondary lithology:bioturbation unlithified sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: GENERAL LITHOLOGY: The lower 5m of the lower Gatun Formation consists of volcanic conglomerate, with 1-5cm clasts and a tuffaceous, arkoskic matrix, cross-bedded, laminated, tuffaceous siltstone and alternating laminated sandstone and siltstone, mostly deeply weathered. The overlying 40m (Section 1) consists of massive, grey-green, clayey siltstone, with minor claystone and fine sandstone units. zones of densely packed large concretions, pervasive bioturbation, and extensive thalassinoid burrow systems, as well as simple vertical and lateral hash-filled burrows. Shell hash of varying grain size and density is almost ubiquitous, as are units packed with diverse, whole mollusks.
Environment:coastal indet.
Geology comments: ENVIRONMENT: from Collins et al. (1999), open, inner neritic.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils
Collection methods:bulk,sieve,field collection
Reason for describing collection:paleoecologic analysis
Museum repositories:NMB
Collection method comments: COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. COLLECTORS: unknown (PPP staff) collected 8/19/87. REPOSITORIES:collections presumably held at USNM, BMNH and Naturhistorisches Museum Basel (NMB),
Taxonomic list comments:NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution. IDENTIFIER: presumably identified by J. Jackson, J. Todd, H. Fortunato, and P. Jung.
Metadata
Also known as:NMB Loc. 17639
Database number:79784
Authorizer:A. Miller, A. Hendy Enterer:K. Bulinski, A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-03-24 11:26:25 Last modified:2012-12-03 17:38:18
Access level:authorizer only Released:2009-03-24 11:26:25
Creative Commons license:CC BY
Reference information

Primary reference:
17667. 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]

Secondary references:

42438 P. Jung. 1989. Unpublished notes on Caribbean collection of the Naturhistorisches Museum Basel. [A. Hendy/A. Hendy]
43491 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]