Esperanza, Atlantico: Middle Miocene, Colombia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pholadida - Corbulidae
Corbula (Cuneocorbula) hexacyma (Brown and Pilsbry 1913)
recombined as Hexacorbula hexacyma
Bivalvia - Arcida - Arcidae
Scapharca chiriquiensis (Gabb 1861)
recombined as Anadara (Grandiarca) chiriquiensis
Subspecies: S. chiriquiensis bolivari
Gastropoda - Personidae
Distorsio cf. simillimus (Sowerby 1850)
recombined as Distorsio simillima
Gastropoda - Neogastropoda - Mitridae
Mitra colombiana Weisbord 1929
recombined as Subcancilla colombiana
Gastropoda - Neogastropoda - Turridae
Turris albida (Perry 1811)
Subspecies: T. albida barretti=Polystira
    = Pleurotoma barretti Guppy 1866
Hendy et al. 2008
recombined as Polystira barretti
Gastropoda - Neogastropoda - Melongenidae
Melongena colombiana Weisbord 1929
recombined as Torquifer colombiana
Gastropoda - Turritellidae
Turritella cf. falconensis
Turritella cf. gatunensis Conrad 1857
Turritella supraconcava Hanna and Israelsky 1925
synonym of Turritella abrupta
Gastropoda - Potamididae
Potamides (Pyrazisinus) bolivarensis Weisbord 1929
synonym of Terebralia dentilabris
Potamides (Lampanella) ormei (Maury 1917)
synonym of Potamides suprasulcatus
Gastropoda - Heterostropha - Architectonicidae
Architectonica granulatum (Lamarck 1822)
synonym of Architectonica nobilis
see common names

Geography
Country:Colombia State/province:Bolivar
Coordinates: 10.4° North, 75.5° West (view map)
Paleocoordinates:9.8° North, 72.9° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 5
Key time interval:Middle Miocene
Age range of interval:15.98000 - 11.63000 m.y. ago
Stratigraphy
Local section:Esperanza
Regional section:Bolivar
Stratigraphic resolution:bed
Stratigraphy comments: Middle Miocene age based on correlation with other Caribbean fossil assemblages and by stratigraphic relations. Thickness in the Zambrano-Carmen section may be as much as 5,000 ft. Fossils are stratigraphically lower than those from Jesus del Monte.
Lithology and environment
Primary lithology: unlithified sandstone
Includes fossils?Y
Lithology description: Sandstone. Unlithified based on observation of figured specimens.
Environment:coastal indet.
Geology comments: No paleonenvironmental data reported, though from apparently from shallow-water siliciclastic sediments. Rocks dip to the SE monoclinally away from the older sediments forming the folds of the central range of hills. From strike ridge of sandstone.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Preservation of anatomical detail:good
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:PRI
Collection method comments: Collections reposited at Cornell University (now PRI collections). Many collections collected by C.C. Anderson.
Taxonomic list comments:Some lists appear exhaustive, though in cases nomenclature is antiquated, though at species resolution.
Metadata
Database number:60687
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2006-05-20 15:22:52 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-05-20 15:22:52
Creative Commons license:CC BY
Reference information

Primary reference:
17428. N. E. Weisbord. 1929. Miocene Mollusca of Northern Colombia. Bulletin of American Paleontology 14(54):1-310 [A. Miller/A. Hendy/O. Alfaro]

Secondary references:

19909 A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy]