Samba Hills (540 ft) (Miocene of Dominican Republic)

Where: Dominican Republic (19.6° N, 71.3° W: paleocoordinates 19.6° N, 70.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cercado Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• Claystone. From unknown formation (Possibly Cercado, Gurabo or Mao) at the time of writing. Section of unknown thickness at 540 ft elevation. At 870 ft occurs an unfossilferous limestone bed, at 660 ft a bed of sandstone, at 600 ft a second sandstone bed outcroped, and at 540 ft the bed from which the collection was obtained. Probably equivalent to the Cercado Formation.

• bed-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, shelly/skeletal, yellow claystone

• No paleoenvironmental data reported by Maury.
• Fossiliferous yellow clays.

Size class: macrofossils

Preservation: original aragonite

Reposited in the PRI

Collection methods: quarrying,

• Collections reposited at Cornell University and now reside at PRI.

Primary reference: C. J. Maury. 1917. Santo Domingo type sections and fossils. Bulletins of American Paleontology 5(30):1-43 [A. Miller/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 58870: authorized by Austin Hendy, entered by Austin Hendy on 27.02.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Identifications to species level, though antiquated genus-level nomenclature.
Bivalvia
 Arcida - Arcidae
"Arca lomasdesamba" = Arca (Arca) lomasdesamba, "Barbatia cf. bonaczyi" = Barbatia (Barbatia) bonaczyi, "Scapharca henekeni" = Anadara (Sectiarca) henekeni
"Arca lomasdesamba" = Arca (Arca) lomasdesamba Maury 1917 ark
"Barbatia cf. bonaczyi" = Barbatia (Barbatia) bonaczyi Gabb 1873 clam
"Scapharca henekeni" = Anadara (Sectiarca) henekeni Maury 1917 ark
 Arcida - Glycymerididae
"Glycymeris acuticostata" = Tucetona acuticostata
"Glycymeris acuticostata" = Tucetona acuticostata Sowerby 1849 clam
Listed originally as Glycimeris [=Panopea]
 Pectinida - Pectinoidae
Amusium papyraceum, "Pecten thetidis" = Argopecten thetidis, "Pecten eugrammatus" = Argopecten thetidis, "Pecten vaginulus" = Spathochlamys vaginula
Amusium papyraceum Gabb 1873 scallop
"Pecten thetidis" = Argopecten thetidis Sowerby 1850 calico scallop
"Pecten eugrammatus" = Argopecten thetidis Sowerby 1850 calico scallop
"Pecten vaginulus" = Spathochlamys vaginula Dall 1898 scallop
 Ostreida - Ostreidae
"Ostrea virginica" = Crassostrea virginica
"Ostrea virginica" = Crassostrea virginica Gmelin 1791 oyster
 Cardiida - Cardiidae
"Cardium serratum" = Laevicardium serratum, "Cardium sambaicum" = Trigoniocardia sambaicum
"Cardium serratum" = Laevicardium serratum Linnaeus 1758 cockle
"Cardium sambaicum" = Trigoniocardia sambaicum Maury 1917 cockle
 Lucinida - Lucinidae
"Myrtaea lomasdesamba" = Myrtea
"Myrtaea lomasdesamba" = Myrtea clam
Gastropoda
 Trochoidea - Trochidae
Calliostoma grabaui Maury 1917 top snail