PPP# 457 - 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
Tubothalamea - Miliolida - Neodiscidae
Crassispira (Crassispirella) sp. Gaillot and Vachard 2007
1 specimen
Gastropoda - Eulimidae
Eulimidae indet. Philippi 1853
1 specimen
Gastropoda - Cerithiidae
Alabina sp. Dall 1902
2 specimens
Rhinoclavis (Ochetoclava) sp. (Woodring 1928)
1 specimen
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
165 specimens
Gastropoda - Neogastropoda - Olividae
Olivella (Olivella) sp. Swainson 1831
1 specimen
Gastropoda - Neogastropoda - Conidae
Conus sp. Linnaeus 1758
5 specimens
Gastropoda - Neogastropoda - Clathurellidae
Nannodiella sp. (Dall 1919)
1 specimen
Gastropoda - Neogastropoda - Turridae
Polystira sp. Woodring 1928
2 specimens
Gastropoda - Ovulidae
Simnia sp. Risso 1826
1 specimen
Gastropoda - Caecidae
Caecidae indet. Gray 1850
2 specimens
Gastropoda - Heterostropha - Pyramidellidae
Pyramidellidae indet. Gray 1840
1 specimen
Eulimastoma sp. Bartsch 1916
1 specimen
Gastropoda - Opisthobranchia - Cavoliniidae
Creseis sp. Rang 1828
1 specimen
Gastropoda - Opisthobranchia - Limacinidae
Limacina sp. Bosc 1817
84 specimens
Bivalvia - Pectinida - Anomiidae
Anomia sp. Linnaeus 1758
1 specimen
Bivalvia - Pectinida - Propeamussiidae
Cyclopecten sp. Verrill 1897
4 specimens
Bivalvia - Ostreida - Ostreidae
Ostreidae indet. Rafinesque 1815
1 specimen
Bivalvia - Poromyida - Cuspidariidae
Cardiomya sp. Adams 1864
1 specimen
Bivalvia - Pholadida - Corbulidae
Caryocorbula sp. (Gardner 1926)
1 specimen
original and current combination Corbula (Caryocorbula)
Bivalvia - Cardiida - Chamidae
Arcinella sp. Schumacher 1817
1 specimen
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 - 2.58800 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. 17780
Database number:79991
Authorizer:A. Hendy Enterer:K. Bulinski
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-03-31 19:08:43 Last modified:2013-11-25 13:37:23
Access level:authorizer only Released:2009-03-31 19:08:43
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]