PPP# 452 - La Bomba [Rio Banano Fm] (Pliocene of Costa Rica)

Also known as NMB Loc. 17775

Where: Limon, Costa Rica (9.9° N, 83.1° W: paleocoordinates 9.8° N, 83.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Rio Banano Formation (Limon Group), Piacenzian (3.6 - 2.6 Ma)

• 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.

• bed-level stratigraphic resolution

Environment/lithology: deltaic; bioturbated, coarse-grained, concretionary, tuffaceous sandstone and burrowed, tuffaceous, silty siltstone

• Thick deltaic succession.
• 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.

Size class: macrofossils

Collected by Jung & Panchaud in 1988; reposited in the NMB

Collection methods: bulk, sieve,

• COLLECTORS: Peter Jung & R. Panchaud, 28.3.1988. REPOSITORIES: Naturhistorisches Museum Basel (NMB).

Primary reference: 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]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 79800: authorized by Arnold Miller, entered by Kate Bulinski on 24.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for gastropoda, bivalvia and scaphopoda. NOMENCLATURE: modern nomenclature, though only identified to subgenus resolution.
Show authors, comments, and common names
unclassified
  -
Caecid indet., Eulimid indet., Pyramidelline indet., Styliola sp., Turbonilline indet., ? Turbonilline sp., Typhine sp.
Scaphopoda
 Dentaliida - Dentaliidae
Tesseracme sp., Dentalium sp.
Tesseracme sp. Pilsbry 1898 tusk shell
Dentalium sp. Linnaeus 1758 tusk shell
sensu lato
 Gadilida - Gadilidae
Cadulus sp.
Cadulus sp. Philippi 1844 tusk shell
Bivalvia
 Mytilida - Crenellidae
Crenella sp.
Crenella sp. Brown 1827 clam
 Arcida - Noetiidae
Noetia sp.
Noetia sp. Gray 1857 clam
 Arcida - Arcidae
Anadara sp., Anadara (Cunearca) sp., Sheldonella sp., Acar sp.
Anadara sp. Gray 1847 ark
sensu lato
Anadara (Cunearca) sp. Dall 1898 ark
Sheldonella sp. Maury 1917 clam
Acar sp. Gray 1857 miniature ark
 Pectinida - Propeamussiidae
Cyclopecten sp.
Cyclopecten sp. Verrill 1897 mud scallop
 Lucinida - Lucinidae
Linga (Bellucina) sp., "Lucinisca sp." = Lucina (Lucinisca), Parvilucina sp.
Linga (Bellucina) sp. Dall 1901 clam
"Lucinisca sp." = Lucina (Lucinisca) Dall 1901 clam
Parvilucina sp. Dall 1901 clam
sensu lato
 Cardiida - Cardiidae
Trigoniocardia sp.
Trigoniocardia sp. Dall 1900 cockle
sensu lato
 Cardiida - Tellinidae
"Eurytellina sp." = Tellina (Eurytellina)
"Eurytellina sp." = Tellina (Eurytellina) Fischer 1887 tellin clam
 Cardiida - Veneridae
Chionopsis sp., Dosinia sp., ? Lamelliconcha sp., Macrocallista (Megapitaria) sp.
Chionopsis sp. Olsson 1932 venus clam
Dosinia sp. Scopoli 1777 venus clam
? Lamelliconcha sp. Dall 1902 venus clam
Macrocallista (Megapitaria) sp. Grant and Gale 1931 venus clam
 Cardiida - Chamidae
Arcinella sp.
Arcinella sp. Schumacher 1817 jewel box
 Poromyida - Verticordiidae
Trigonulina sp.
Trigonulina sp. d'Orbigny 1946 clam
 Poromyida - Cuspidariidae
Cardiomya sp.
Cardiomya sp. Adams 1864 clam
 Nuculanida - Nuculanidae
Adrana sp.
Adrana sp. Adams and Adams 1858 pointed nut clam
 Nuculida - Nuculidae
Nucula (Lamellinucula) sp.
Nucula (Lamellinucula) sp. Schenck 1944 nut clam
Gastropoda
 Opisthobranchia - Cylichnidae
Cylichnella sp., Acteocina sp.
Cylichnella sp. Gabb 1873 snail
Acteocina sp. Gray 1847 barrel-bubble
 Opisthobranchia - Retusidae
Volvulella (Volvulella) sp., Sulcoretusa sp.
Volvulella (Volvulella) sp. Newton 1891 snail
Sulcoretusa sp. Burch 1945 snail
 Thecosomata - Cavoliniidae
Creseis sp.
Creseis sp. Rang 1828 snail
 Heterostropha - Architectonicidae
Spirolaxis sp., Architectonica sp., Pseudotorinia sp.
Spirolaxis sp. Monterosato 1913 snail
Architectonica sp. Röding 1798 sundial
Pseudotorinia sp. Sacco 1892 snail
 Heterostropha - Pyramidellidae
Eulimastoma sp., Ugartea sp., ? Eulimella sp., Ividella sp.
Eulimastoma sp. Bartsch 1916 snail
Ugartea sp. Bartsch 1917 snail
? Eulimella sp. Forbes and MacAndrew 1846 snail
Ividella sp. Dall and Bartsch 1909 snail
 Heterostropha - Acteonidae
Acteon sp.
Acteon sp. Montfort 1810 snail
 Heterostropha - Ringiculidae
Ringicula (Ringiculella) sp.
 Epitonioidea - Epitoniidae
Epitonium sp.
Epitonium sp. Bolten 1798 wentletrap
 Vanikoroidea - Eulimidae
Niso sp.
Niso sp. Risso 1826 snail
 Cerithioidea - Cerithiidae
Alabina sp.
Alabina sp. Dall 1902 cerith snail
 Sorbeoconcha - Naticidae
Stigmaulax sp.
Stigmaulax sp. Morch 1852 moon snail
 Sorbeoconcha - Tornidae
Teinostoma sp.
Teinostoma sp. Adams and Adams 1853 snail
 Neogastropoda - Mitridae
Subcancilla sp.
Subcancilla sp. Olsson and Harbison 1953 mitre shell
 Neogastropoda - Columbellidae
Strombina (Lirastrombina) sp., "Costoanachis sp." = Anachis (Costoanachis), Sincola (Sincola) sp., "Glyptaesopus sp." = Aesopus (Glyptaesopus)
"Costoanachis sp." = Anachis (Costoanachis) Sacco 1890 snail
Sincola (Sincola) sp. Olsson and Harbison 1953 snail
"Glyptaesopus sp." = Aesopus (Glyptaesopus) Pilsbry and Olsson 1941 dovesnail
 Neogastropoda - Buccinidae
Antillophos (Antillophos) sp.
Antillophos (Antillophos) sp. Woodring 1928 true whelk
 Neogastropoda - Nassariidae
Nassarius sp.
Nassarius sp. Duméril 1806 snail
sensu lato
 Neogastropoda - Cancellariidae
Cancellaria sp.
Cancellaria sp. Lamarck 1799 snail
sensu lato
 Neogastropoda - Olividae
Olivella (Dactylidella) sp., Olivella (Olivella) sp., Oliva (Oliva) sp.
Olivella (Dactylidella) sp. Woodring 1928 olive snail
Olivella (Olivella) sp. Swainson 1831 olive snail
Oliva (Oliva) sp. Bruguière 1789 olive snail
 Neogastropoda - Turridae
Turridae indet., Lepicythara sp.
Turridae indet. Swainson 1840 turrid
Lepicythara sp. Olsson 1964 turrid
 Neogastropoda - Conidae
Conus sp.
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Drilliidae
Agladrillia (Agladrillia) sp., Hindsiclava sp., Clathrodrillia sp.
Agladrillia (Agladrillia) sp. Woodring 1928 snail
Hindsiclava sp. Hertlein and Strong 1955 snail
Clathrodrillia sp. Dall 1918 snail
 Neogastropoda - Terebridae
Strioterebrum sp.
Strioterebrum sp. Sacco 1891 auger snail
 Neogastropoda - Mangeliidae
Ithycythara sp.
Ithycythara sp. Woodring 1928 snail
 Neogastropoda - Marginellidae
Volvarina sp.
Volvarina sp. Hinds 1844 margin shell
 Sorbeoconcha - Strombidae
Strombus sp.
Strombus sp. Linnaeus 1758 conch
 Pseudomelanoidea - Pseudomelaniidae
Crassispira (Crassispira) sp., Carinodrillia sp.
Crassispira (Crassispira) sp. Swainson 1840 snail
Carinodrillia sp. Dall 1919 snail