Ceru Mainsjie [Ceru Mainsjie Fm]: Bartonian, Netherlands Antilles

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Arcida - Arcidae
Bivalvia - Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758
Cubitostrea sp. Sacco 1897
Bivalvia - Ostreida - Gryphaeidae
? Pycnodonte sp. (Fischer von Waldheim 1835)
Bivalvia - Cardiida - Veneridae
Veneridae indet. Rafinesque 1815
Bivalvia - Cardiida - Tellinidae
Tellinidae indet. Blainville 1814
Bivalvia - Cardiida - Cardiidae
Cardiidae indet. Lamarck 1809
Cardium sp. Linnaeus 1758
Bivalvia - Pholadida - Raetomyidae
Bivalvia - Carditida - Carditidae
Gastropoda - Turritellidae
Gastropoda - Cerithiidae
Cerithium sp. Bruguière 1789
? Dirocerithium sp. Woodring and Stenzel 1959
Gastropoda - Naticidae
Polinices sp. Monfort 1810
Neverita sp. Risso 1826
Amaurellina sp. Fischer 1885
Gastropoda - Neogastropoda - Conidae
Gastropoda - Neogastropoda - Pseudolividae
Gastropoda - Ficidae
Ficopsis sp. Conrad 1866
Gastropoda - Campanilidae
Campanile sp. Fischer 1884
Gastropoda - Ampullinidae
Ampullina sp. Férussac 1822
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
see common names

Geography
Country:Netherlands Antilles State/province:Curacao
Coordinates: 12.1° North, 68.8° West (view map)
Paleocoordinates:11.2° North, 55.4° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Paleogene Epoch: Eocene
Stage: Bartonian 10 m.y. bin: Cenozoic 3
Key time interval: Bartonian
Age range of interval: 41.03 - 37.71 m.y. ago
Stratigraphy
Formation:Ceru Mainsjie
Stratigraphic resolution:formation
Stratigraphy comments: Collection derived from several horizons within the Ceru Mainsjie Formation. Considered to be Early Eocene by Altena (1941). Foraminiferal evidence of Keyzer (in Schaub 1948) suggested a Late Eocene age. Hermes (1968) used planktonic foraminifera to indicate a upper Middle Eocene age. Molluscan biostratigraphy excludes an Early Eocene age, though definately point to the Eocene. Taxa are most similar to those of Late Eocene age from Peru. Jung suggests therefore that the age is Late Eocene or somewhat older, but later indicates that is probably late Middle Eocene age. Therefore the enterer (A. Hendy) assigns a Bartonian age.
Lithology and environment
Primary lithology: poorly lithified calcareous claystone
Secondary lithology:pebbly poorly lithified calcareous sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Calcareous clay and silt and subordinate calcareous sandstone and conglomerate.
Environment:marginal marine indet.
Geology comments: Brackish water influence, although co-occuring with many normal salinity taxa.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:NMB
Collection method comments: Collections reposted in the Naturhistorisches Museum Basel (NMB).
Taxonomic list comments:Exhaustive for Mollusca, although the authors suggest that careful collecting would yield further taxa. Eocene fossils from region have been reported previously by Hummelinck (1940) and mentioned by Molengraaf (1929), Rutsch (1939), and Schaub (1948).
Metadata
Also known as:NMB 12908, NMB 12912, NMB 13033
Database number:60088
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2006-04-30 09:08:45 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-04-30 09:08:45
Creative Commons license:CC0
Reference information

Primary reference:
17267. P. Jung. 1974. Eocene Mollusks from Curacao, West Indies. Verhandlungen der Naturforschenden Gesellschaft in Basel 84(1):483-500 [A. Miller/A. Hendy/M. Clapham]