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Topsy, Glacier Bay National Park, Glacier Bay Mining District, Alaska, USA

Formation	Topsy
Age:	20.4 - 5.3 Ma Miocene
Interval	Burdigalian - Serravallian
Lithology	siltstone/sandstone, sandstone, sandstone/siltstone
Number of Collections	6
Number of Occurrences	32

Recorded Sample Locations

Location	Region	Stratigraphic Name
Lituya	Glacier Bay National Park, Glacier Bay Mining District, Alaska, USA	Topsy
Lituya	Glacier Bay National Park, Glacier Bay Mining District, Alaska, USA	Topsy
Lituya	Glacier Bay National Park, Glacier Bay Mining District, Alaska, USA	Topsy
Cenotaph Island	Glacier Bay National Park, Glacier Bay Mining District, Alaska, USA	Topsy
Cenotaph Island	Glacier Bay National Park, Glacier Bay Mining District, Alaska, USA	Topsy

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Natica (Cryptonatica) oregonensis species	7	*Natica (Cryptonatica) oregonensis*	20.44 - 11.62 Ma Miocene
Osteichthyes unranked clade	99	Animalia : Chordata : Osteichthyes	20.44 - 11.62 Ma Miocene
Clypeasterina suborder	4.3	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Clypeasterina	20.44 - 11.62 Ma Miocene
Echinarachnius alaskense species	7	Animalia : Echinodermata : Echinoidea : Clypeasteroida : Echinarachniidae : Scutella (Echinarachnius) : *Echinarachnius alaskense*	23.03 - 5.333 Ma Miocene
Anorthoscutum oregonensis species	7	Animalia : Echinodermata : Scutellidae : Anorthoscutum : *Anorthoscutum oregonensis*	23.03 - 5.333 Ma Miocene
Macoma (Macoma) golikovi species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Macoma) golikovi*	20.44 - 11.62 Ma Miocene
Macoma (Macoma) twinensis species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma (Macoma) twinensis*	20.44 - 11.62 Ma Miocene
Macoma albaria species	7	Animalia : Mollusca : Bivalvia : Cardiida : Tellinidae : Macoma : *Macoma albaria*	20.44 - 11.62 Ma Miocene
Lucinoma acutilineata species	7	Animalia : Mollusca : Bivalvia : Lucinida : Lucinidae : Lucinoma : *Lucinoma acutilineata*	20.44 - 11.62 Ma Miocene
Conchocele conradii species	7	Animalia : Mollusca : Bivalvia : Lucinida : Thyasiridae : Conchocele : *Conchocele conradii*	20.44 - 11.62 Ma Miocene
Nuculana sp. genus	6	Animalia : Mollusca : Bivalvia : Nuculanida : Nuculanidae : *Nuculana*	20.44 - 11.62 Ma Miocene
Acila (Truncacila) sp. subgenus	6.3	Animalia : Mollusca : Bivalvia : Nuculida : Nuculidae : Acila : *Acila (Truncacila)*	20.44 - 11.62 Ma Miocene
Chlamys sp. genus	6	Animalia : Mollusca : Bivalvia : Pectinida : Pectinidae : *Chlamys*	20.44 - 11.62 Ma Miocene
Mya sp. genus	6	Animalia : Mollusca : Bivalvia : Myida : Myidae : *Mya*	20.44 - 11.62 Ma Miocene
Periploma sp. genus	6	Animalia : Mollusca : Bivalvia : Periplomatidae : *Periploma*	20.44 - 11.62 Ma Miocene
Periploma (Aelga) sp. subgenus	6.3	Animalia : Mollusca : Bivalvia : Thraciida : Periplomatidae : Periploma : *Periploma (Aelga)*	20.44 - 11.62 Ma Miocene
Spisula sp. genus	6	Animalia : Mollusca : Bivalvia : Venerida : Mactridae : *Spisula*	20.44 - 11.62 Ma Miocene
Colus sp. genus	6	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : *Colus*	20.44 - 11.62 Ma Miocene
Neptunea (Neptunea) sp. subgenus	6.3	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : Neptunea : *Neptunea (Neptunea)*	20.44 - 11.62 Ma Miocene
Neptunea (Sulcosipho) sp. subgenus	6.3	Animalia : Mollusca : Gastropoda : Neogastropoda : Buccinidae : Neptunea : *Neptunea (Sulcosipho)*	20.44 - 11.62 Ma Miocene
Cryptonatica affinis species	7	Animalia : Mollusca : Gastropoda : Naticidae : Cryptonatica : *Cryptonatica affinis*	20.44 - 11.62 Ma Miocene
Fusitriton oregonensis species	7	Animalia : Mollusca : Gastropoda : Littorinimorpha : Cymatiidae : Fusitriton : *Fusitriton oregonensis*	20.44 - 11.62 Ma Miocene
Calliostoma sp. genus	6	Animalia : Mollusca : Gastropoda : Trochida : Calliostomatidae : *Calliostoma*	20.44 - 11.62 Ma Miocene
Turbinidae family	5	Animalia : Mollusca : Gastropoda : Trochida : Turbinidae	20.44 - 11.62 Ma Miocene

References

Wagner C. D. (1974) Fossil and recent sand dollar echinoids of Alaska, Journal of Paleontology 48 1, 105-123

Marincovich L. (1979) Miocene molluscks of the Topsy Formation, Lituya district, Gulf of Alaska Tertiary Province, Alaska, United States Geological Survey Professional Paper 1125 C, C1-C14

Coan E. V., Scott P. V., et al (2000) Bivalve seashells of western North America, Santa Barbara Museum of Natural history Monographs 2, 1-764

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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