Where: Falcon, Venezuela (10.4° N, 70.1° W: paleocoordinates 9.6° N, 66.7° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Castillo Formation, Burdigalian (20.4 - 16.0 Ma)
• The Castillo Formation has formely been regarded as late Oligocene in age (Wheeler, 1960), but more recent workers, including this reference regard it to be early Miocene. The Castillo Formation unconformably overlies Eocene rocks of the Misoa Formation, although neither upper or lower contacts can be viewed at the collection's section. The section comprises 87 m of clayey marls interbedded with numerous thin (<1 m) hardground units. The strata are underlain and overlain by sandstones, and the upper 15 m are gypsiferous. Most fossils were collected near the base of the exposures. The turtle skull was collected from the top, however.
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; argillaceous marl
Size class: macrofossils
Reposited in the AMNH, USNM
Collection methods: quarrying,
• Collections deposited in the AMNH, MBLUZ (Museo de Biologia de la Universidad del Zulia, Maracaibo), and USNM.
Primary reference: M. R. Sanchez-Villagra, R. J. Burnham, D.C. Campbell, R.M. Feldmann, E.S. Gaffney, R.S. Kay, R. Lozsan, R. Purdy, and J.G.M. Thewissen. 2000. A new near-shore marine fauna and flora from the early Neogene of northwestern Venezuela. Journal of Paleontology 74(5):957-968 [A. Miller/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 43063: authorized by Austin Hendy, entered by Austin Hendy on 09.08.2004, edited by Mark Uhen, Juan Carrillo and Philip Mannion
Creative Commons license: CC BY (attribution)
Taxonomic list
Chondrichthyes | |
Hemipristis serra Agassiz 1835 ground shark | |
Carcharhinus cf. obscurus Le Sueur 1818 requiem shark
Carcharhinus cf. perezi Poey 1876 requiem shark | |
Mammalia | |
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Reptilia | |
"cf. Podocnemis venezuelensis" = Bairdemys venezuelensis
"cf. Podocnemis venezuelensis" = Bairdemys venezuelensis Wood and Diaz 1971 sideneck turtle genus indet. cf. "Podocnemis" venezuelensis
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Crocodylidae indet. crocodile | |
Actinopteri | |
Ariopsis castilloensi n. sp.1
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Bivalvia | |
Agriopoma (Pitarella) paraguanensis, Chionopsis tegulum, Clementia (Clementia) dariena, Cyclinella cyclica
Agriopoma (Pitarella) paraguanensis Hodson 1927 venus
Chionopsis tegulum Brown and Pilsbry 1911 venus clam
Clementia (Clementia) dariena Conrad 1855 venus clam Subspecies: Clementia (Clementia) dariena dariena
Cyclinella cyclica Guppy 1866 venus clam | |
Semele cf. zuliana Hodson 1931 clam | |
"Tagelus" (Mesopleura) cf. divisus Spengler 1794 clam | |
Trachycardium sp. Mörch 1853 cockle Listed as Trachycardium sp. cf. 'Trachycardium' virile Dall, 1900
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Anadara mirandana Hodson et al. 1927 ark | |
Euvola burnsi scallop | |
""Ostrea" podagrina" = Ostrea (Ostrea) podagrina, Cubitostrea pauciplicata
""Ostrea" podagrina" = Ostrea (Ostrea) podagrina Dall 1895 oyster
Cubitostrea pauciplicata oyster | |
Saccella gracillima Jung 1965 pointed nut clam | |
Gastropoda | |
Lithopoma portoricoensis snail | |
Melongena venezuelana Gibson-Smith and Gibson-Smith 1983 snail | |
"Turritella" montanitensis turret shell
"Turritella" venezuelana Hodson 1926 turret shell | |
Malacostraca | |
Portunus oblongus Rathbun 1920 swimming crab | |
Angiospermae | |
Arecaceae indet. von Berchtold and Presl 1820 palm |