Falcón [Urumaco Fm] (Miocene of Venezuela)

Where: Venezuela (11.0° N, 69.8° W: paleocoordinates 10.7° N, 68.4° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Urumaco Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• LITHOSTRATIGRAPHY: From the Urumaco Formation, for which lithsotratigraphic relations are not discussed. AGE: Late Miocene in Venezuelan Lexicon; Middle-Late Miocene in Woodring (1982). STRATIGRAPHIC POSITION: From unknown position within section.

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

• No paleoenvironmental data provided.
• LITHIFICATION: Unknown. LITHOLOGY: No lithologic data provided, but assumed to be siliciclastic.

Size class: macrofossils

Collection methods: quarrying,


Primary reference: W. P. Woodring. 1957. Geology and Paleontology of Canal Zone and adjoining parts of Panama. United States Geological Survey Professional Paper 306(A) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 96488: authorized by Austin Hendy, entered by Austin Hendy on 09.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxa miscellaneously mentioned in text. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
 Pectinida - Pectinoidae
Argopecten levicostatus3 Toula 1909 calico scallop
 Carditida - Carditidae
Pleuromeris acaris3 Dall 1903 clam
 Cardiida - Chamidae
Chama berjadinensis3 Hodson 1927 jewel box
 Cardiida - Anatinellidae
Raeta undulata3 Gould 1851 clam
 Cardiida - Veneridae
Lirophora (Lirophora) falconensis3 Hodson et al. 1927 venus clam
Cyclinella cyclica3 Guppy 1866 venus clam
 Cardiida - Tellinidae
Psammacoma gatunensis3 Toula 1909 tellin clam
 Cardiida - Semelidae
Semele laevis3 Sowerby 1833 clam
SUBSPECIES: Semele laevis costaricensis
 Neogastropoda - Buccinidae
Solenosteira (Fusinosteira) falconensis1 Weisbord 1929 true whelk
 Neogastropoda - Muricidae
"Chicoreus (Chicoreus) venezuelanus" = Chicoreus venezuelanus2
"Chicoreus (Chicoreus) venezuelanus" = Chicoreus venezuelanus2 Hodson and Hodson 1931 murex snail
 Sorbeoconcha - Turritellidae
Turritella abrupta1 Spieker 1922 turret shell
Turritella (Broderiptella) caronensis1 Mansfield 1925 turret shell
Turritella (Broderiptella) bifastigata1 Nelson 1870 turret shell
SUBSPECIES: Turritella (Broderiptella) bifastigiata cartagenensis
Turritella (Broderiptella) planigyrata1 Guppy 1867 turret shell
Turritella matarucana Hodson 1926 turret shell