PPP# 455 - La Bomba [Rio Banano Fm]: Piacenzian, Costa Rica
collected by Jung et al. 1988

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Caecid indet.
14 specimens
Pyramidelline indet.
1 specimen
Turbonilline indet.
4 specimens
Scaphopoda
Scaphopoda indet. Bronn 1862
1 specimen
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
11 specimens
sensu lato
Gastropoda - Heterostropha - Pyramidellidae
Eulimastoma sp. Bartsch 1916
2 specimens
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
5 specimens
Gastropoda - Heterostropha - Ringiculidae
Ringicula (Ringiculella) sp. (Sacco 1892)
6 specimens
Gastropoda - Cerithiidae
Alabina sp. Dall 1902
9 specimens
Gastropoda - Strombidae
Strombus sp. Linnaeus 1758
7 specimens
Gastropoda - Neogastropoda - Olividae
Oliva (Oliva) sp. Bruguière 1789
3 specimens
Gastropoda - Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806
1 specimen
sensu lato
Gastropoda - Neogastropoda - Buccinidae
Antillophos (Antillophos) sp. Woodring 1928
1 specimen
Gastropoda - Neogastropoda - Columbellidae
Strombina (Lirastrombina) sp. Jung 1989
1 specimen
Gastropoda - Neogastropoda - Mangeliidae
Ithycythara sp. Woodring 1928
1 specimen
Gastropoda - Neogastropoda - Terebridae
Terebra (Oreoterebra) sp. Olsson 1967
1 specimen
Gastropoda - Neogastropoda - Conidae
Conus sp. Linnaeus 1758
2 specimens
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799
2 specimens
sensu lato
Gastropoda - Opisthobranchia - Cylichnidae
Cylichnella sp. Gabb 1873
1 specimen
Acteocina sp. Gray 1847
2 specimens
Bivalvia - Ostreida - Ostreidae
? Dendostrea sp. Swainson 1835
1 specimen
Bivalvia - Arcida - Noetiidae
Noetia sp. Gray 1857
1 specimen
Bivalvia - Arcida - Arcidae
Anadara (Cunearca) sp. (Dall 1898)
6 specimens
Bivalvia - Lucinida - Lucinidae
Lucinisca sp. Dall 1901
1 specimen
spelled with current rank as Lucina (Lucinisca)
Parvilucina sp. (Dall 1901)
15 specimens
sensu lato
Bivalvia - Cardiida - Veneridae
Macrocallista (Megapitaria) sp. (Grant and Gale 1931)
1 specimen
Chionopsis sp. Olsson 1932
4 specimens
Bivalvia - Cardiida - Chamidae
Arcinella sp. Schumacher 1817
1 specimen
Bivalvia - Carditida - Crassatellidae
Crassinella sp. Guppy 1874
32 specimens
see common names

Geography
Country:Costa Rica State/province:Limon
Coordinates: 9.9° North, 83.1° West (view map)
Paleocoordinates:9.8° North, 83.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Pliocene
Stage:Piacenzian 10 m.y. bin:Cenozoic 6
Key time interval:Piacenzian
Age range of interval:3.60000 - 2.58000 m.y. ago
Age estimate:2.9 Ma (other)3.6 to 2.2 Ma (other)
Stratigraphy
Geological group:Limon Formation:Rio Banano
Stratigraphic resolution:bed
Stratigraphy comments: The Rio Banano Formation sits diachronously with abrupt lithological transition on the Uscari Formation, mostly conformably and sometimes disconformably. The Rio Banano Formation passes conformably into the Quebrada Chocolate Formation in the area immediately west of Limon but throughout most of the southern Limon Basin it is unconformably overlain by the breccia and coarse grained volcaniclastics of the Suretka Formation. AGE: direct date extrapolated from Bybell (1999) and Collins et al. (1999).
Lithology and environment
Primary lithology:bioturbation,coarse,concretionary,tuffaceous sandstone
Secondary lithology:burrows,tuffaceous silty siltstone
Includes fossils?Y
Includes fossils?Y
Lithology description: The sections at Quitaria and Bomba show two relatively thin, richly fossiliferous marine units with a thick deltaic section of burrow-mottled, coarse, tuffaceous, concretionary sandstone that frequently contains basalt pebbles, leaves, seeds and wood fragments. The lower marine section is exposed showing 15m of burrow-mottled, shelly clayey siltstone and silty, tuffaceous sanstone wiht frequent shelly stringers and lenses that contain an abundant and diverse marine mollusk and bryozoan assemblage. Thallasinoid burrow systems are common, often packed with shell hash, as are slabby and irregular concretion zones.
Environment:deltaic indet.
Geology comments: Thick deltaic succession.
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
Collectors:Jung et al. Collection dates:1988
Collection method comments: COLLECTORS: Peter Jung, R. Panchaud & Claudia Mora, 29.3.1988. REPOSITORIES: Naturhistorisches Museum Basel (NMB),
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution.
Metadata
Also known as:NMB Loc. 17778
Database number:79803
Authorizer:A. Miller Enterer:K. Bulinski
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-03-24 20:08:22 Last modified:2012-12-06 22:50:40
Access level:authorizer only Released:2009-03-24 20:08:22
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]