El Carmen, 6 mi. W of (Horizon F): Bartonian, Colombia
collected by Anderson

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Dentaliida - Dentaliidae
Dentalium sp. Linnaeus 1758
Dentalium samanicum
Scaphopoda - Gadilida - Gadilidae
Cadulus sp. Philippi 1844
Gastropoda - Solariellidae
Solariella cf. louisiana
Gastropoda - Opisthobranchia - Akeridae
Akera bolivarensis n. sp. Anderson 1928
Gastropoda - Turritellidae
Turritella obruta Conrad 1833
Turritella humerosa Conrad 1835
Gastropoda - Planaxidae
Actaeon (Tornatellaea) cf. quercollis
    = Fossarus (Isapsis) bolivarensis Clark and Durham 1946
Clark and Durham 1946
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea cf. aperta (Solander 1766)
recombined as Calyptraea (Trochita) aperta
Gastropoda - Ampullinidae
Amauropsis perovata (Conrad 1846)
    = Pseudocrommium carmenensis Clark and Durham 1946
Clark and Durham 1946
recombined as Pachycrommium carmenensis
Gastropoda - Naticidae
Natica aperta
    = Natica sp. Scopoli 1777
Clark and Durham 1946
Natica cf. eminula Conrad 1833
    = Natica sp. Scopoli 1777
Clark and Durham 1946
Sigaretus cf. bilix Conrad 1833
recombined as Sinum bilix
Gastropoda - Cerithiopsidae
Cerithiopsis conica
Gastropoda - Capulidae
Lysis sp. Gabb 1864
Gastropoda - Tornidae
Teinostoma subangulata
Gastropoda - Neogastropoda - Fasciolariidae
Clavilithes cf. harrisi Woods 1922
Gastropoda - Neogastropoda - Buccinidae
Pseudoliva sp. Swainson 1840
Gastropoda - Neogastropoda - Melongenidae
Levifusus cf. pagoda (Heilprin 1880)
replaced by Levifusus pagodiformis
Gastropoda - Neogastropoda - Terebridae
Terebra cf. plicatula Lamarck 1803
    = Terebra (Mirula) grabrielensis
Clark and Durham 1946
Gastropoda - Neogastropoda - Turridae
Surcula (Drillia) carmenensis n. sp. Anderson 1928
    = Pleurofusia carmenensis Anderson 1928
Clark and Durham 1946
recombined as Coronia carmenensis
Gastropoda - Neogastropoda - Olivellidae
Olivancillaria cf. peruviana Woods 1922
Gastropoda - Neogastropoda - Olividae
Ancilla (Olivula) cf. scamba
Ancilla (Olivula) staminea Conrad 1832
Gastropoda - Neogastropoda - Volutidae
Athleta (Volutospina) cf. petrosa (Conrad 1833)
Gastropoda - Neogastropoda - Harpidae
Athleta (Volutospina) caracoli n. sp. Anderson 1928
    = Morum (Herculea) caracoli Anderson 1928
Clark and Durham 1946
Gastropoda - Strombidae
Rostellaria (Cowlitzia) cf. canalifera Gabb 1864
    = Ectinochilus olssoni Clark and Durham 1946
Clark and Durham 1946
Gastropoda - Ficidae
Pyrula cf. juvensis
synonym of Ficus
Gastropoda - Eulimidae
? Eulima sp. Risso 1826
Bivalvia - Nuculida - Nuculidae
Acila ovula
    = Nucula andersoni Clark and Durham 1946
Clark and Durham 1946
Bivalvia - Arcida - Arcidae
Arca rhomboidella Lea 1833
    = Arca sp. Linnaeus 1758
Clark and Durham 1946
Bivalvia - Arcida - Glycymerididae
Glycymeris caracolis n. sp.
    = Glycymeris caracoli Anderson 1928
Clark and Durham 1946
Bivalvia - Cardiida - Cardiidae
Cardium aff. triangulatum
Bivalvia - Cardiida - Tellinidae
Tellina greggi
Tellina cf. rostralis
Tellina cf. subtriangularis
Bivalvia - Cardiida - Veneridae
Callista (Macrocallista) dickersoni Woods 1922
Cytherea perovata Conrad 1833
recombined as Callista (Callista) perovata
Bivalvia - Cardiida - Mactridae
Mactra parilis
Bivalvia - Pholadida - Corbulidae
Corbula cf. arnoldi Woods 1922
Corbula alabamiensis Lea 1833
    = Corbula (Caryocorbula) carmenensis Clark and Durham 1946
Clark and Durham 1946
Bivalvia - Lucinida - Lucinidae
Volupia bolivarensis n. sp. Anderson 1928
recombined as Lucina (Here) bolivarensis
Bivalvia - Carditida - Carditidae
Venericardia alticostata (Conrad 1833)
    = Venericardia (Glyptoactis) carmenensis Clark and Durham 1946
Clark and Durham 1946
Venericardia cf. planicosta Lamarck 1801
    = Venericardia (Venericor) samanensis Olsson 1928
Clark and Durham 1946
Venericardia cf. subrotunda
    = Venericardia (Venericor) samanensis Olsson 1928
Clark and Durham 1946
Malacostraca - Decapoda - Xanthidae
? Xanthopsis sp. (M'Coy 1849)
original and current combination Zanthopsis
Anthozoa - Scleractinia - Poritidae
Stephanocoenia peruviana Vaughan 1922
    = Goniopora andersoni n. sp.
Clark and Durham 1946
Nummulitidae
Nummulites carmenensis n. sp. Anderson 1928
see common names

Geography
Country:Colombia
Coordinates: 9.8° North, 75.2° West (view map)
Paleocoordinates:7.2° North, 67.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Bartonian 10 m.y. bin:Cenozoic 3
Key time interval:Bartonian
Age range of interval:41.20000 - 37.71000 m.y. ago
Stratigraphy
Stratigraphic resolution:group of beds
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From a unit referred to as the Carmen section of the Eocene, for which lithostratigraphic relations are unclear. AGE: Eocene, though not clear; age assignment reassigned based on the known biostratigraphic ranges of constituent taxa in more recent literature; here assigned to Bartonian (early Middle Eocene), but it is acknowledged that considerable constituent taxa have known age ranges extending (but not exclusive) to the Late Eocene and Ypresian. STRATIGRAPHIC POSITION: From Horizon F of the Carmen section.
Lithology and environment
Primary lithology:concretionary poorly lithified "shale"
Secondary lithology:concretionary lithified sandstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Concretionary sandy shale, sandstone. LITHIFICATION: Poorly lithified, on the basis of figured specimens.
Environment:coastal indet.
Geology comments: ENVIRONMENT: Shallow marine siliciclastic.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collectors:Anderson
Collection method comments: COLLECTOR: F. Anderson, c. 1920's. REPOSITORY: California Academy of Sciences.
Taxonomic list comments:COVERAGE: Exhaustive for gastropods, bivalves and forams. NOMENCLATURE: Authoritative publication, with antiquated nomenclature, but with species-resolution identifications.
Metadata
Database number:88278
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2009-04-06 07:38:47 Last modified:2013-11-25 13:37:23
Access level:the public Released:2009-04-06 07:38:47
Creative Commons license:CC BY
Reference information

Primary reference:
29642. F. M. Anderson. 1928. Notes on Lower Tertiary deposits of Colombia and their molluscan and foraminiferal fauna. Proceedings of the California Academy of Sciences 17(1):1-29 [A. Hendy/A. Hendy]

Secondary references:

182 B. L. Clark and J. W. Durham. 1946. Eocene Faunas from the Department of Bolivar, Colombia. Geological Society of America Memoir 16:1-126 [M. Patzkowsky/K. Layou/A. Hendy]