Sta. 126 - Quebradillas [Quebradillas Limestone]: Middle Miocene, Puerto Rico
collected by Reeds 1915

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Lucinida - Lucinidae
Bivalvia - Cardiida - Cardiidae
Bivalvia - Pholadida - Teredinidae
Teredo incrassata (Gabb 1873)
Bivalvia - Thraciida - Thraciidae
Gastropoda - Opisthobranchiata - Haminoeidae
Gastropoda - Xenophoridae
Gastropoda - Neogastropoda - Olividae
Gastropoda - Neogastropoda - Drilliidae
Drillia consors (Sowerby 1850)
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria sp. Lamarck 1799
see common names

Geography
Country:Puerto Rico County:Quebradillas
Coordinates: 18.5° North, 67.0° West (view map)
Paleocoordinates:19.4° North, 63.7° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
10 m.y. bin: Cenozoic 5
Key time interval: Middle Miocene
Age range of interval: 15.98 - 11.63 m.y. ago
Stratigraphy
Formation:Quebradillas Limestone
Stratigraphic resolution:bed
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Quebradillas Limestone, which regionally overlie the Ponce chalky beds [subsequently referred to as Ponce Fm], and is laterally related to the Oak Grove Sands (Florida). AGE: Early-Middle Miocene based on macro- and microfaunal biostratigraphy in text. Here assigned to Middle Miocene based on more recent dating. STRATIGRAPHIC POSITION: From unknown position within formation.
Lithology and environment
Primary lithology: lithified "limestone"
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Limestone. LITHIFICATION: Lithified, on the basis of taphonomic data.
Environment:carbonate indet.
Geology comments: ENVIRONMENT: Shallow carbonate setting.
Taphonomy
Modes of preservation:body,cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (in situ),field collection
Reason for describing collection:taxonomic analysis
Collectors:Reeds Collection dates:1915
Collection method comments: COLLECTOR: C. Reeds (AMNH), 1915. REPOSITORY: Not stated, but is likely to be AMNH, New York.
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: An authoritative publication but with quite antiquated nomenclature. Nevertheless, all taxa are identified to species and subgenus resolution.
Metadata
Database number:80287
Authorizer:A. Hendy Enterer:A. Hendy
Research group:marine invertebrate
Created:2008-04-10 18:48:19 Last modified:2025-02-22 15:12:02
Access level:the public Released:2008-04-10 18:48:19
Creative Commons license:CC0
Reference information

Primary reference:
26978. C. J. Maury. 1920. Tertiary Mollusca from Porto Rico. Scientific Survey of Porto Rico and the Virgin Islands 3(1):1-78 [A. Hendy/A. Hendy/A. Hendy]