PPP# 451 - Bomba [Rio Banano Fm]: Piacenzian, Costa Rica
collected by Jung & Panhcaud 1988

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Caryophylliidae
Scaphopoda - Dentaliida - Dentaliidae
21 specimens
sensu lato
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
2 specimens
Bivalvia - Nuculanida - Nuculanidae
Saccella sp. Woodring 1925
3 specimens
Bivalvia - Arcida - Arcidae
1 specimen
Anadara (Potiarca) sp. (Iredale 1939)
1 specimen
Bivalvia - Arcida - Glycymerididae
Tucetona sp. Iredale 1939
60 specimens
Bivalvia - Pectinida - Limidae
? Lima sp. Bruguière 1797
1 specimen
Bivalvia - Pectinida - Propeamussiidae
Cyclopecten sp. Verrill 1897
3 specimens
Bivalvia - Mytilida - Crenellidae
Crenella sp. Brown 1827
5 specimens
Bivalvia - Carditida - Crassatellidae
1 specimen
Bivalvia - Lucinida - Lucinidae
Parvilucina sp. (Dall 1901)
8 specimens
sensu lato
Bivalvia - Pholadida - Corbulidae
Caryocorbula sp. (Gardner 1926)
2 specimens
Bivalvia - Cardiida - Chamidae
1 specimen
Bivalvia - Cardiida - Veneridae
Pitar sp. Römer 1857
1 specimen
Lirophora sp. Conrad 1863
2 specimens
Chione sp. von Mühlfield 1811
3 specimens
Bivalvia - Cardiida - Cardiidae
Trachycardium sp. Mörch 1853
1 specimen
sensu lato
Gastropoda - Epitoniidae
Epitonium sp. Bolten 1798
2 specimens
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
15 specimens
Gastropoda - Cerithiidae
Alabina sp. Dall 1902
14 specimens
Gastropoda - Pseudomelaniidae
Carinodrillia sp. (Dall 1919)
1 specimen
Gastropoda - Atlantidae
Atlanta sp. Lesueur 1817
1 specimen
Gastropoda - Naticidae
Sinum sp. Röding 1798
1 specimen
Stigmaulax sp. Morch 1852
4 specimens
Natica sp. Scopoli 1777
1 specimen
Gastropoda - Vermetidae
Petaloconchus sp. (Lea 1843)
3 specimens
Serpulorbis sp. Sasso 1827
31 specimens
Gastropoda - Strombidae
Strombus sp. Linnaeus 1758
3 specimens
Gastropoda - Neogastropoda - Turridae
2 specimens
Gastropoda - Neogastropoda - Conidae
17 specimens
Gastropoda - Neogastropoda - Drilliidae
Hindsiclava sp. Hertlein and Strong 1955
2 specimens
1 specimen
Gastropoda - Neogastropoda - Buccinidae
19 specimens
1 specimen
Gastropoda - Neogastropoda - Cancellariidae
Aphera sp. Adams and Adams 1854
1 specimen
Gastropoda - Neogastropoda - Muricidae
Haustellum sp. Schumacher 1817
1 specimen
Gastropoda - Neogastropoda - Marginellidae
Volvarina sp. (Hinds 1844)
2 specimens
Prunum sp. Swainson 1840
1 specimen
Dentimargo sp. Cossmann 1899
3 specimens
Gastropoda - Neogastropoda - Volutidae
Voluta sp. Linnaeaus 1758
2 specimens
Gastropoda - Neogastropoda - Olividae
1 specimen
2 specimens
Oliva (Oliva) sp. Bruguière 1789
25 specimens
Gastropoda - Personidae
Distorsio clathrata (Lamarck 1816)
2 specimens
Gastropoda - Trochidae
? Calliostoma sp. Swainson 1840
1 specimen
unclassified
1 specimen
Gastropoda - Opisthobranchiata - Cavoliniidae
Creseis sp. Rang 1828
1 specimen
Gastropoda - Opisthobranchiata - Limacinidae
Limacina sp. Bosc 1817
9 specimens
Gastropoda - Opisthobranchiata - Retusidae
Sulcoretusa sp. Burch 1945
3 specimens
Gastropoda - Heterostropha - Pyramidellidae
Eulimastoma sp. Bartsch 1916
2 specimens
see common names

Geography
Country:Costa Rica State/province:Limon
Coordinates: 9.9° North, 83.1° West (view map)
Paleocoordinates:10.4° North, 82.5° West (Wright 2013)
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: 3.6 - 2.58 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 & Panhcaud Collection dates:1988
Collection method comments: COLLECTORS: Peter Jung, R. Panchaud & Claudia Mora, 27.3.1988. 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. 17774
Database number:79799
Authorizer:A. Miller, A. Hendy Enterer:K. Bulinski, A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2008-03-24 19:24:55 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2009-03-24 19:24:55
Creative Commons license:CC0
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]