Urumaco Formation: Late/Upper Miocene, Venezuela

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Anadara notabilis Röding 1798
Rhyzoprionodon sp.
Aguilera and de Aguilera 2004
Negapriom eurybathrodon
Aguilera and de Aguilera 2004
Mylobatis sp.
Aguilera and de Aguilera 2004
Sciaedeops troschelli
Aguilera and de Aguilera 2004
Ophioscion lundbergi
Aguilera and de Aguilera 2004
Plagioscion urumacoensis
Aguilera and de Aguilera 2004
Bivalvia - Arcida - Arcidae
Anadara chemnitzi (Philippi 1851)
recombined as Anadara (Cunearca) chemnitzii
Anadara zorritoensis (Spieker 1922)
Anadara brasiliana (Lamarck 1819)
recombined as Anadara (Cunearca) brasiliana
Anadara inutilis Jung 1965
original and current combination Anadara (Cunearca) inutilis
Anadara cf. lienosa (Say 1832)
recombined as Anadara (Rasia) lienosa
Bivalvia - Arcida - Glycymerididae
Glycymeris pectinata (Gmelin 1791)
recombined as Tucetona pectinata
Bivalvia - Pectinida - Pectinidae
Lyropecten antillarum (Récluz 1853)
recombined as Antillipecten antillarum
Argopecten nucleus
Argopecten irradians (Lamarck 1819)
Bivalvia - Pectinida - Plicatulidae
Plicatula gibbosa Lamarck 1801
MISSPELT: Plicatula gibosa
Bivalvia - Ostreida - Ostreidae
Crassostrea sp. Sacco 1897
Ostrea sp. Linnaeus 1758
Bivalvia - Pholadida - Corbulidae
Corbula contracta Say 1822
recombined as Caryocorbula contracta
Corbula caribaea d'Orbigny 1845
recombined as Caryocorbula caribaea
Corbula operculata
Bivalvia - Cardiida - Chamidae
Echinochama cf. cornuta (Conrad 1866)
original and current combination Arcinella cornuta
Bivalvia - Cardiida - Mactridae
Mulinia portoricensis
Bivalvia - Cardiida - Tellinidae
Tellina radiata Linnaeus 1758
Bivalvia - Cardiida - Cardiidae
Trachycardium magnum
Trigoniocardia antillarum (d'Orbigny 1853)
recombined as Trigoniocardia (Apiocardia) antillarum
Bivalvia - Solenida - Solenidae
Solen sp. Linnaeus 1758
Bivalvia - Poromyida - Verticordiidae
Verticordia cf. acuticostata
Bivalvia - Poromyida - Cuspidariidae
Cardiomya alternata
Bivalvia - Lucinida - Lucinidae
Codakia cf. orbiculata (Montagu 1808)
recombined as Ctena orbiculata
Gastropoda - Neogastropoda - Olividae
Oliva reticularis Lamarck 1811
Oliva cylindrica Sowerby 1850
MISSPELT: Oliva cilindrica
Gastropoda - Neogastropoda - Buccinidae
Antillophos sp. Woodring 1928
Gastropoda - Neogastropoda - Nassariidae
Nassarius antillarum (d'Orbigny 1847)
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria (Cancellaria) sp. Lamarck 1799
Gastropoda - Neogastropoda - Cystiscidae
Persicula venezolana
Spelling?; SUBSPECIES: Persicula venezolana lavellana
Gastropoda - Neogastropoda - Marginellidae
Prunum cf. marginatum
Prunum cf. prunum (Gmelin 1791)
Gastropoda - Neogastropoda - Muricidae
Eupleura cf. caudata (Say 1822)
Gastropoda - Neogastropoda - Turridae
Polystira vives
Gastropoda - Neogastropoda - Horaiclavidae
Buchema sp. Corea 1934
Gastropoda - Neogastropoda - Conidae
Conus cf. kevani
Conus cf. bayeri
Gastropoda - Eulimidae
Niso sp. Risso 1826
Gastropoda - Naticidae
Stigmaulax cf. sulcata (Born 1778)
Polinices lacteus (Guilding 1834)
Gastropoda - Cypraeidae
Cypraea aff. henekeni (Sowerby 1850)
    = Siphocypraea donmoorei Petuch 1979
Petuch 1988
recombined as Muracypraea donmoorei
Gastropoda - Sorbeoconcha - Turritellidae
Turritella abrupta (Spieker 1922)
Gastropoda - Architectonicidae
Heliacus bisulcatus
Gymnolaemata - Cheilostomata
Petaloconchus varians d'Orbigny 1839
Chondrichthyes - Plagiostomi - Squalidae
Galeocerdo cuvier Peron and LeSueur 1822
Aguilera and de Aguilera 2004
corrected as Galeocerdo cuvieri
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810
Aguilera and de Aguilera 2004
Chondrichthyes - Myliobatiformes - Myliobatidae
Rhinoptera sp. Cuvier 1829
Aguilera and de Aguilera 2004
Chondrichthyes - Rhinopristiformes - Pristidae
Pristis pectinata
Aguilera and de Aguilera 2004
Chondrichthyes - Lamniformes - Otodontidae
Carcharodon megalodon (Agassiz 1843)
Aguilera and de Aguilera 2004
recombined as Otodus megalodon
Chondrichthyes - Carchariniformes - Carcharhinidae
Carcharhinus sp. de Blainville 1816
Aguilera and de Aguilera 2004
Chondrichthyes - Carchariniformes - Sphyrnidae
Sphyrna sp. Rafinesque 1810
Aguilera and de Aguilera 2004
Chondrichthyes - Carchariniformes - Hemigaleidae
Hemipristis serra Agassiz 1843
Aguilera and de Aguilera 2004
Actinopteri - Perciformes - Serranidae
Epinephelus itajara Lichtenstein 1822
Aguilera and de Aguilera 2004
Actinopteri - Perciformes
Nebris sp. Cuvier and Valenciennes 1830
Aguilera and de Aguilera 2004
Actinopteri - Haemulidae
Haemulon sp. Cuvier 1829
Aguilera and de Aguilera 2004
Actinopteri - Sciaenidae
Cynoscion sp. Gill 1861
Aguilera and de Aguilera 2004
Micropogonias coatesi
Aguilera and de Aguilera 2004
Equetus sp. Rafinesque 1815
Aguilera and de Aguilera 2004
Larimus steurbautti
Aguilera and de Aguilera 2004
Larimus sp. Cuvier and Valenciennes 1830
Aguilera and de Aguilera 2004
Larimus henrii Nolf and Aguilera 1998
Aguilera and de Aguilera 2004
Actinopteri - Siluriformes - Ariidae
Arius couma
Aguilera and de Aguilera 2004
Arius dowii
Aguilera and de Aguilera 2004
Arius herzbergii
Aguilera and de Aguilera 2004
Arius kessleri
Aguilera and de Aguilera 2004
Arius quadriscutis
Aguilera and de Aguilera 2004
Arius rugispinis
Aguilera and de Aguilera 2004
Bagre marinus
Aguilera and de Aguilera 2004
Reptilia - Testudines - Trionychidae
Trionychidae indet. Gray 1825
Wood and Patterson 1973
Musco de Cicncias Naturales, Caracas, no. 238; hypoplastron. Pleurodira indet. according to 64451 (Chelidae or Araripemyidae). But Trionychidae indet. according to 63467
Reptilia - Testudines - Podocnemididae
Bairdemys venezuelensis (Wood and Diaz 1971)
Aguilera and de Aguilera 2004
Mammalia - Trichechidae
Ribodon sp. Ameghino 1883
Latrubesse et al. 2010
Mammalia - Notoungulata - Toxodontidae
Toxodontidae indet. Ameghino 1889
Mammalia - Rodentia - Neoepiblemidae
cf. Phoberomys sp. Kraglievich 1926
Horovitz et al. 2006
CIAAP 441-442. In: El Hatillo (c) - Collected by Jean Bocquentin-Villanueva in July 1980
Mammalia - Megatheriidae
Urumaquia robusta Carlini et al. 2006
Carlini et al. 2008
AMU-CURS 169, 176, 179. Urumaco, Estado Falc6n, Venezuela; Urumaco Formation, Late Miocene (MINISTERIO DE ENERG1A Y MINAS 1997;
Mammalia - Cetacea - Iniidae
Saurocetes sp. Burmeister 1871
Latrubesse et al. 2010
Ischyrorhynchus sp. Ameghino 1891
Cozzuol 2006
see common names

Coordinates: 11.2° North, 70.3° West (view map)
Paleocoordinates:11.0° North, 68.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:basin
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.60800 - 5.33300 m.y. ago
Stratigraphic resolution:formation
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From Urumaco Formation. AGE: Correlations indicate Middle Miocene-Early Pliocene in text; suggested to be Late Miocene according to Gamero (1997); placed by enterer in late Miocene on the basis of faunal composition . STRATIGRAPHIC POSITION: General list for formation.
Lithology and environment
Primary lithology: unlithified "siliciclastic"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Not stated, but obviously siliciclastic. LITHIFICATION: Unlithified, based on figured specimens.
Environment:coastal indet.
Geology comments: ENVIRONMENT: Shallow marine siliciclastic.
Modes of preservation:body,original aragonite
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some genera
Collection methods:surface (float),field collection
Reason for describing collection:taxonomic analysis
Collection method comments: COLLECTOR: Multiple collectors. REPOSITORY: UNEFM, Venezuela.
Taxonomic list comments:COVERAGE: Limited to characteristic taxa figured or stated in text. NOMENCLATURE: Not and authoritative publication with generally modern nomenclature and species-resolution identifications.
Database number:92751
Authorizer:A. Hendy, E. Vlachos, P. Mannion, C. Jaramillo, M. Uhen Enterer:A. Hendy, C. Pimiento, M. Kouvari, E. Vlachos, M. Uhen
Modifier:M. Kouvari Research group:marine invertebrate
Created:2009-11-27 13:27:56 Last modified:2019-08-29 04:01:39
Access level:the public Released:2009-11-27 13:27:56
Creative Commons license:CC BY
Reference information

Primary reference:

31280. O. A. Aguilera. 2004. Tesoros Paleontológicos de Venezuela 1-148 [A. Hendy/A. Hendy/P. Wagner]

Secondary references:

64451 F. L. Agnolin. 2005. The systematic position of Trionyx argentina Ameghino, 1899 (Chelonii: Trionychidae). Studia Geológica Salmanticensia 41:57-61 [E. Vlachos/E. Vlachos/M. Uhen]
38039 O. Aguilera and D. R. de Aguilera. 2004. Giant-toothed White Sharks and Wide-toothed Mako (Lamnidae) from the Venezuela Neogene: Their Role in the Caribbean, Shallow-water Fish Assemblage. Caribbean Journal of Science 40(3):368-382 [M. Uhen/M. Uhen/C. Pimiento]
38840 M. Bond, R. H. Madden, and A. A. Carlini. 2006. A new specimen of Toxodontidae(Notoungulata)from the Urumaco formation (Upper Miocene) of Venezuela. Journal of Systematic Palaeontology 4(3):285-291 [C. Jaramillo/C. Jaramillo]
69924 A. A. Carlini, D. Brandoni, and R. Sanchez. 2008. Additions to the knowledge of Urumaquia robusta (Xenarthra, Phyllophaga, Megatheriidae) from the Urumaco Formation (Late Miocene), Estado Falc6n, Venezuela. Palaeontologische Zeitschrift 82(2):153-162 [P. Mannion/M. Kouvari]
19222 M. A. Cozzuol. 2006. The Acre vertebrate fauna: Age, diversity, and geography. Journal of South American Earth Sciences 21:185-203 [M. Uhen/M. Uhen]
69912 I. Horovitz, M. R. Sánchez-Villagra, T. Martin and O. A. Aguilera. 2006. The fossil record of Phoberomys pattersoni Mones 1980 (Mammalia, Rodentia) from Urumaco (Late Miocene, Venezuela), with an analysis of its phylogenetic relationships. Journal of Systematic Palaeontology 4(3):293-306 [P. Mannion/M. Kouvari]
33351 E. M. Latrubesse, M. Cozzuol, S. A. F. Silva-Caminha, C. A. Rigsby, M. L. Absy and C. Jaramillo. 2010. The Late Miocene paleogeography of the Amazon Basin and the evolution of the Amazon River system. Earth-Science Reviews 99:99-124 [M. Uhen/M. Uhen/M. Uhen]
31112 E. J. Petuch. 1988. Neogene History of Tropical American Mollusks 1-217 [A. Hendy/A. Hendy]
63467 N. S. Vitek and W. G. Joyce. 2015. A Review of the Fossil Record of New World Turtles of the Clade Pan-Trionychidae. Bulletin of the Peabody Museum of Natural History 56(2):185-244 [P. Mannion/P. Mannion]
64060 R. C. Wood and B. Patterson. 1973. A fossil trionychid from South America. Breviora 405:1-10 [E. Vlachos/E. Vlachos]