PPP# 450 - Quitaria [Rio Banano Fm] (Pliocene of Costa Rica)

Also known as NMB Loc. 17773

Where: Limon, Costa Rica (9.9° N, 83.1° W: paleocoordinates 9.8° N, 83.4° 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. AGE: direct date extrapolated from Bybell (1999) and Collins et al. (1999).

• 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, 27.3.1988. 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 79798: 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.
unclassified
  -
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758 tusk shell
 Gadilida - Gadilidae
Cadulus sp. Philippi 1844 tusk shell
Gastropoda
 Heterostropha - Architectonicidae
Architectonica sp. Röding 1798 sundial
 Heterostropha - Ringiculidae
 Opisthobranchia - Retusidae
Volvulella (Volvulella) sp. Newton 1891 snail
Sulcoretusa sp. Burch 1945 snail
 Opisthobranchia - Cylichnidae
Cylichnella sp. Gabb 1873 snail
Acteocina sp. Gray 1847 barrel-bubble
 Opisthobranchia - Haminoeidae
Atys sp. Montfort 1810 snail
 Cerithioidea - Cerithiidae
Alabina sp. Dall 1902 cerith snail
 Epitonioidea - Epitoniidae
Epitonium sp. Bolten 1798 wentletrap
 Sorbeoconcha - Naticidae
Polinices sp. Monfort 1810 moon snail
Stigmaulax sp. Morch 1852 moon snail
Natica sp. Scopoli 1777 moon snail
 Sorbeoconcha - Tornidae
Teinostoma sp. Adams and Adams 1853 snail
 Sorbeoconcha - Vitrinellidae
 Neogastropoda - Columbellidae
Sincola (Sinaxila) sp. Jung 1989 snail
Sincola (Sincola) sp. Olsson and Harbison 1953 snail
 Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806 snail
sensu lato
 Neogastropoda - Drilliidae
Clathrodrillia sp. Dall 1918 snail
Agladrillia (Agladrillia) sp. Woodring 1928 snail
 Neogastropoda - Mangeliidae
Ithycythara sp. Woodring 1928 snail
 Neogastropoda - Clathurellidae
 Neogastropoda - Terebridae
Strioterebrum sp. Sacco 1891 auger snail
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Neogastropoda - Turridae
Turridae indet. Swainson 1840 turrid
Lepicythara sp. Olsson 1964 turrid
 Neogastropoda - Olividae
Olivella (Olivella) sp. Swainson 1831 olive snail
Olivella (Dactylidella) sp. Woodring 1928 olive snail
 Neogastropoda - Costellariidae
? Fusiturricula sp. Woodring 1928 ribbed mitre
 Neogastropoda - Marginellidae
Prunum sp. Swainson 1840 margin shell
Dentimargo sp. Cossmann 1899 margin shell
 Neogastropoda - Cystiscidae
Persicula sp. Schumacher 1817 snail
 Sorbeoconcha - Strombidae
Strombus sp. Linnaeus 1758 conch
 Vanikoroidea - Eulimidae
Niso sp. Risso 1826 snail
Bivalvia
 Nuculanida - Nuculanidae
Saccella sp. Woodring 1925 pointed nut clam
 Nuculida - Nuculidae
Nucula (Lamellinucula) sp. Schenck 1944 nut clam
 Mytilida - Crenellidae
Crenella sp. Brown 1827 clam
 Arcida - Noetiidae
Noetia sp. Gray 1857 clam
 Arcida - Arcidae
Anadara (Potiarca) sp. Iredale 1939 ark
 Cardiida - Veneridae
Chionopsis sp. Olsson 1932 venus clam
Lamelliconcha sp. Dall 1902 venus clam
Macrocallista (Megapitaria) sp. Grant and Gale 1931 venus clam
 Lucinida - Lucinidae
Parvilucina sp. Dall 1901 clam
sensu lato
 Carditida - Crassatellidae
Crassinella sp. Guppy 1874 clam