Balls Point, Block Island (Miocene to of the United States)

Where: Washington County, Rhode Island (41.2° N, 71.6° W: paleocoordinates 41.3° N, 67.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Early/Lower Miocene to Early/Lower Miocene (23.0 - 11.6 Ma)

• STRATIGRAPHIC RELATIONS: From unknown lithostratigraphic unit. AGE: Early Miocene, though questionable based on limited fauna and antiquated source; said to be referable to Calvert fauna. STRATIGRAPHIC POSITION: From loose boulder.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, gray, argillaceous limestone

• ENVIRONMENT: Shallow marine fauna.
• SPECIFIC LITHOLOGY: Soft, dark gray, argillaceous limestone LITHIFICATION: Poorly lithified, on the basis of facies description.

Size class: macrofossils

Collected by Watson & Crosby in 1915

Collection methods: surface (float),

• COLLECTORS: Watson & Crosby, 1915. REPOSITORY: Unknown.

Primary reference: H. W. Shimer. 1916. Fossiliferous Miocene boulders from Block Island, Rhode Island. American Journal of Science 41:255-256 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88533: authorized by Austin Hendy, entered by Austin Hendy on 14.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for small sample size. NOMENCLATURE: Not an authoritative publication, with antiquated nomenclature, but with species-resolution identifications.
Gastropoda
 Sorbeoconcha - Vermetidae
"Vermetus virginicus" = Anguinella virginica
"Vermetus virginicus" = Anguinella virginica Conrad 1839 worm shell
 Sorbeoconcha - Cerithiopsidae
 Cerithioidea - Cerithiidae
Cerithium sp. Bruguière 1789 cerith snail
 Cerithioidea - Turritellidae
"Turritella plebeia" = Mariacolpus plebeia
"Turritella plebeia" = Mariacolpus plebeia Say 1824 turret shell
Bivalvia
 Ostreida - Ostreidae
Ostreidae indet. Rafinesque 1815 oyster
SUBSPECIES: Ostrea cf. sellaeformis thomasii
 Arcida - Arcidae
"Arca cf. marylandica" = Barbatia marylandica
"Arca cf. marylandica" = Barbatia marylandica Conrad 1840 clam
 Pholadida - Corbulidae
"Corbula cuneata" = Caryocorbula cuneata
"Corbula cuneata" = Caryocorbula cuneata Say 1824 clam
 Cardiida - Tellinidae
Tellina sp. Linnaeus 1758 tellin clam
 Cardiida - Glossidae
"Isocardia cf. mazlea" = Glossus mazlea
"Isocardia cf. mazlea" = Glossus mazlea Glenn 1904 clam
 Lucinida - Lucinidae
"Phacoides cf. anodonta" = Stewartia anodonta
"Phacoides cf. anodonta" = Stewartia anodonta Say 1824 clam
 Nuculanida - Nuculanidae
"Leda liciata" = Nuculana liciata
"Leda liciata" = Nuculana liciata Conrad 1843 pointed nut clam
Demospongiae
 Clavulina - Clionaidae
Cliona sp. demosponge