PPP# 232 - Sabanita [lower Gatun Fm]: Tortonian, Panama

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Cardiida - Cardiidae
Trigoniocardia sp. Dall 1900
11 specimens
sensu lato
Trachycardium sp. Mörch 1853
4 specimens
sensu lato
Bivalvia - Cardiida - Semelidae
Ervilia sp. Turton 1822
33 specimens
Bivalvia - Cardiida - Kelliellidae
Alveinus sp. Conrad 1865
3 specimens
Bivalvia - Cardiida - Veneridae
Macrocallista (Megapitaria) sp. (Grant and Gale 1931)
6 specimens
Chionopsis sp. Olsson 1932
6 specimens
Bivalvia - Cardiida - Mactridae
Mulinia sp. Gray 1837
14 specimens
Bivalvia - Lucinida - Lucinidae
Linga (Bellucina) sp. Dall 1901
1 specimen
Bivalvia - Carditida - Crassatellidae
Crassinella sp. Guppy 1874
27 specimens
Bivalvia - Ostreida - Pinnidae
Atrina sp. Gray 1842
2 specimens
Bivalvia - Pectinida - Pectinidae
Leptopecten sp. Verrill 1897
17 specimens
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
3 specimens
Scaphopoda - Dentaliida - Dentaliidae
Tesseracme sp. Pilsbry 1898
1 specimen
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
2 specimens
Gastropoda - Heterostropha - Acteonidae
Acteon sp. Montfort 1810
1 specimen
Gastropoda - Skeneidae
Solariorbis sp. Conrad 1865
3 specimens
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
25 specimens
Gastropoda - Cerithiidae
Alabina sp. Dall 1902
13 specimens
Gastropoda - Neotaenioglossa - Calyptraeidae
Crucibulum (Crucibulum) sp. Schumacher 1817
4 specimens
Gastropoda - Eulimidae
Eulimidae indet. Philippi 1853
1 specimen
Niso sp. Risso 1826
8 specimens
Gastropoda - Neogastropoda - Olividae
Olivella (Niteoliva) sp. Olsson 1956
11 specimens
Oliva (Oliva) sp. Bruguière 1789
2 specimens
Gastropoda - Neogastropoda - Cystiscidae
Persicula sp. Schumacher 1817
3 specimens
Gastropoda - Neogastropoda - Columbellidae
Strombina (Strombina) sp. Mörch 1858
1 specimen
Gastropoda - Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806
2 specimens
sensu lato
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799
3 specimens
sensu lato
Gastropoda - Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891
20 specimens
Gastropoda - Neogastropoda - Drilliidae
Agladrillia (Agladrillia) sp. Woodring 1928
5 specimens
Gastropoda - Neogastropoda - Conidae
Conus sp. Linnaeus 1758
1 specimen
Gastropoda - Caecidae
Caecidae indet. Gray 1850
1 specimen
Gastropoda - Naticidae
Polinices sp. Monfort 1810
8 specimens
Natica (Naticarius) sp. (Dumeril 1806)
11 specimens
? Stigmaulax sp. Morch 1852
2 specimens
Gastropoda - Opisthobranchia - Cylichnidae
Cylichnella sp. Gabb 1873
2 specimens
Gastropoda - Opisthobranchia - Retusidae
Volvulella (Volvulella) sp. Newton 1891
1 specimen
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: 11.63 - 7.246 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
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 8/25/87. REPOSITORIES: 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. 17650
Database number:79997
Authorizer:A. Hendy Enterer:K. Bulinski
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-03-31 20:20:22 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-03-31 20:20:22
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]