Gable Island, Beagle Channel, Tierra del Fuego (Middle Holocene) (Holocene of Argentina)

Where: Argentina (55.9° S, 67.5° W: paleocoordinates 55.9° S, 67.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Holocene (0.0 - 0.0 Ma)

• STRATIGRAPHIC RELATIONS: From mid-Holocene marine deposits. Stratigraphic relatonships unknown. THICKNESS: From several beds within upper 200 cm of sediment. AGE: Mid-Holocene. One reported C-14 date of 4790 +/- years before present. STRATIGRAPHIC POSITION: From several beds within local area.

• formation-level stratigraphic resolution

Environment/lithology: coastal; unlithified, pebbly sandstone

• ENVIRONMENT: Shallow, siliciclastic environment, probably cold-water.
• SPECIFIC LITHOLOGY: Sandstone, often pebbly. LITHIFICATION: Unlithified, assumed on age and facies description.

Size class: macrofossils

Collection methods: bulk,

• COLLECTOR: Presumably collected by the author, S. Gordillo (Becaria del Conicet, Ushuaia, Tierra del Fuego). REPOSITORY: Repository unknown.

Primary reference: S. Gordillo. 1991. Paleoecologia de moluscos marinos del Holoceno medio de Isla Gable, Canal Beagle, Tierra del Fuego, Argentina. Ameghiniana 28(1-2):127-133 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 65823: authorized by Austin Hendy, entered by Austin Hendy on 25.09.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• COMPLETENESS: Checkist for taxa found on Gable Island, including many not included in individual samples. Exhaustive for gastropoda and bivalvia. No other groups listed. NOMENCLATURE: Not an authoritative publication, but using modern nomenclature and species-level designations.
 Mytilida - Mytilidae
Mytilus edulis Linnaeus 1758 mussel
Subspecies: M. edulis chilensis
"Aulacomya ater" = Aulacomya atra Molina 1782 mussel
 Cardiida - Mactridae
Mulinia edulis King 1831 clam
 Cardiida - Veneridae
Ameghinomya antiqua King 1832 venus clam
Tawera gayi venus clam
 Hiatellida - Hiatellidae
Hiatella solida Sowerby 1834 clam
 Patellida - Nacellidae
"Patinigera deaurata" = Nacella (Patinigera)
"Patinigera deaurata" = Nacella (Patinigera) limpet
 Basommatophora - Siphonariidae
 Trochoidea - Trochidae
 Neogastropoda - Volutidae
Adelomelon ancilla Lightfoot 1786 volute
 Neogastropoda - Muricidae
Trophon muriciformis K├Ânig 1831 murex snail
"Trophon geversianus" = Trophon geversianum Pallas 1774 murex snail
 Sorbeoconcha - Naticidae
"Falsilunatia limbata" = Natica limbata
"Falsilunatia limbata" = Natica limbata d'Orbigny 1837 moon snail
 Neotaenioglossa - Calyptraeidae
Crepipatella dilatata, "Calyptraea pileolus" = Trochita pileolus
Crepipatella dilatata Lamarck 1822 slipper shell
"Calyptraea pileolus" = Trochita pileolus d'Orbigny 1841 slipper shell