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Gustav - Hidden Lake, Western Antarctica, Antarctica

Group	Gustav
Formation	Hidden Lake
Age:	86.3 - 83.5 Ma Late/Upper Cretaceous
Interval	Santonian
Lithology	siltstone/sandstone, sandstone
Number of Collections	23
Number of Occurrences	531

Recorded Sample Locations

Location	Region	Stratigraphic Name
Echinoidea	Western Antarctica, Antarctica	Gustav - Hidden Lake
Col Crame	Western Antarctica, Antarctica	Gustav - Hidden Lake
Hidden Lake B8-B11	Western Antarctica, Antarctica	Gustav - Hidden Lake

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Marambio - Lopez de Bertodano	66.0 - 56.0 Ma Paleocene	sandstone/siltstone, "siliciclastic", mudstone, mudstone/sandstone	91
Marambio - Santa Marta	85.8 - 70.6 Ma Late/Upper Cretaceous	sandstone/siltstone, siltstone/sandstone, siltstone	35
Marambio - Snow Hill Island	83.5 - 66.0 Ma Late/Upper Cretaceous	sandstone	27

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Plantae kingdom	1	Plantae	86.3 - 83.6 Ma Late/Upper Cretaceous
Liliacidites sp. genus	6	Plantae : Tracheophyta : Liliopsida : Liliales : *Liliacidites*	89.8 - 83.5 Ma Late/Upper Cretaceous
Retimonocolpites reticulatus species	7	Plantae : Retimonocolpites : *Retimonocolpites reticulatus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Cyclonephelium sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Areoligeraceae : *Cyclonephelium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Odontochitina sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : *Odontochitina*	89.8 - 83.5 Ma Late/Upper Cretaceous
Odontochitina cribropoda species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : Odontochitina : *Odontochitina cribropoda*	89.8 - 83.5 Ma Late/Upper Cretaceous
Odontochitina operculata species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : Odontochitina : *Odontochitina operculata*	89.8 - 83.5 Ma Late/Upper Cretaceous
Odontochitina porifera species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : Odontochitina : *Odontochitina porifera*	89.8 - 83.5 Ma Late/Upper Cretaceous
Xenascus sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : *Xenascus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Chytroeisphaeridia sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Gonyaulacaceae : *Chytroeisphaeridia*	89.8 - 83.5 Ma Late/Upper Cretaceous
Heterosphaeridium sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Gonyaulacaceae : *Heterosphaeridium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Heterosphaeridium heteracanthum species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Gonyaulacaceae : Heterosphaeridium : *Heterosphaeridium heteracanthum*	89.8 - 83.5 Ma Late/Upper Cretaceous
Impagidinium sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Gonyaulacaceae : *Impagidinium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Stephodinium coronatum species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Gonyaulacaceae : Stephodinium : *Stephodinium coronatum*	89.8 - 83.5 Ma Late/Upper Cretaceous
Dapsilidinium laminaspinosum species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Dapsilidinium : *Dapsilidinium laminaspinosum*	89.8 - 83.5 Ma Late/Upper Cretaceous
Spiniferites ramosus species	7	Dinophyceae : Spiniferites : *Spiniferites ramosus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Conosphaeridium sp. genus	6	*Conosphaeridium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Operculodinium sp. genus	6	*Operculodinium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Palaeophycus sp. genus	6	*Palaeophycus*	86.3 - 83.6 Ma Late/Upper Cretaceous
Planolites sp. genus	6	Animalia : *Planolites*	86.3 - 83.6 Ma Late/Upper Cretaceous
Palaeohystrichophora sp. genus	6	Chromista : Myzozoa : Dinophyceae : Peridiniales : Peridiniaceae : *Palaeohystrichophora*	89.8 - 83.5 Ma Late/Upper Cretaceous
Palaeohystrichophora infusorioides species	7	Chromista : Myzozoa : Dinophyceae : Peridiniales : Peridiniaceae : Palaeohystrichophora : *Palaeohystrichophora infusorioides*	89.8 - 83.5 Ma Late/Upper Cretaceous
Spinidinium sp. genus	6	Chromista : Myzozoa : Dinophyceae : Peridiniales : Peridiniaceae : *Spinidinium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Trithyrodinium sp. genus	6	Chromista : Myzozoa : Dinophyceae : Peridiniales : Peridiniaceae : *Trithyrodinium*	89.8 - 83.5 Ma Late/Upper Cretaceous
Microcachryidites antarcticus species	7	Plantae : Tracheophyta : Pinopsida : Pinales : Podocarpaceae : Microcachryidites : *Microcachryidites antarcticus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Phyllocladidites mawsonii species	7	Plantae : Tracheophyta : Pinopsida : Pinales : Podocarpaceae : Phyllocladidites : *Phyllocladidites mawsonii*	89.8 - 83.5 Ma Late/Upper Cretaceous
Actinotheca aphroditae species	7	Animalia : Problematica : Cupithecidae : Cupitheca : *Actinotheca aphroditae*	89.8 - 83.5 Ma Late/Upper Cretaceous
Tricolporites sp. genus	6	Plantae : Spermatophyta : Magnoliopsida : *Tricolporites*	89.8 - 83.5 Ma Late/Upper Cretaceous
Triorites minor species	7	Plantae : Tracheophyta : Magnoliopsida : Triorites : *Triorites minor*	89.8 - 83.5 Ma Late/Upper Cretaceous
Proteacidites sp. genus	6	Plantae : Tracheophyta : Magnoliopsida : Proteales : *Proteacidites*	89.8 - 83.5 Ma Late/Upper Cretaceous
Megalosauroidea superfamily	4.7	Animalia : Chordata : Saurischia : Megalosauroidea	86.3 - 83.6 Ma Late/Upper Cretaceous
Giraliaster sp. genus	6	Animalia : Echinodermata : Echinoidea : Holasteroida : Pseudholasteridae : *Giraliaster*	86.3 - 83.6 Ma Late/Upper Cretaceous
Mytiloides africanus species	7	Animalia : Mollusca : Bivalvia : Myalinida : Inoceramidae : Mytiloides : *Mytiloides africanus*	86.3 - 83.6 Ma Late/Upper Cretaceous
Menuites sp. genus	6	Animalia : Mollusca : Cephalopoda : Ammonitida : Pachydiscidae : *Menuites*	86.3 - 83.6 Ma Late/Upper Cretaceous
Stoverisporites microverrucatus species	7	Plantae : Bryophyta : Stoverisporites : *Stoverisporites microverrucatus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Dryadopollis sp. genus	6	Plantae : Magnoliophyta : *Dryadopollis*	89.8 - 83.5 Ma Late/Upper Cretaceous
Pterospermella sp. genus	6	Prasinophyta : *Pterospermella*	89.8 - 83.5 Ma Late/Upper Cretaceous
Camarozonosporites ambigens species	7	Plantae : Tracheophyta : Lycopodiopsida : Lycopodiales : Camarozonosporites : *Camarozonosporites ambigens*	89.8 - 83.5 Ma Late/Upper Cretaceous
Densoisporites velatus species	7	Plantae : Tracheophyta : Lycopodiopsida : Selaginellales : Selaginellaceae : Densoisporites : *Densoisporites velatus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Herkosporites elliottii species	7	Plantae : Tracheophyta : Lycopodiopsida : Selaginellales : Selaginellaceae : Herkosporites : *Herkosporites elliottii*	89.8 - 83.5 Ma Late/Upper Cretaceous
Cyatheacidites annulatus species	7	Plantae : Pteridophyta : Pteridopsida : Cyatheales : Cyatheacidites : *Cyatheacidites annulatus*	89.8 - 83.5 Ma Late/Upper Cretaceous
Clavifera triplex species	7	Plantae : Tracheophyta : Polypodiopsida : Gleicheniales : Gleicheniaceae : Clavifera : *Clavifera triplex*	89.8 - 83.5 Ma Late/Upper Cretaceous
Ornamentifera sp. genus	6	Plantae : Tracheophyta : Polypodiopsida : Gleicheniales : Gleicheniaceae : *Ornamentifera*	89.8 - 83.5 Ma Late/Upper Cretaceous
Ischyosporites volkheimeri species	7	Plantae : Pteridophyta : Pteridopsida : Ischyosporites : *Ischyosporites volkheimeri*	89.8 - 83.5 Ma Late/Upper Cretaceous
Rugulatisporites mallatus species	7	Plantae : Tracheophyta : Polypodiopsida : Osmundales : Osmundaceae : Rugulatisporites : *Rugulatisporites mallatus*	89.8 - 83.5 Ma Late/Upper Cretaceous

References

Molnar R. E., Angriman A. L., et al (1996) An Antarctic Cretaceous theropod, Memoirs of the Queensland Museum 39 3, 669-674

Barreda V. D., Palamarczuk S., et al (1999) Palinología de la Formación Hidden Lake (Coniaciano-Santoniano), Isla James Ross, Antártida, Revista Española de Micropaleontología 31, 53-72

Néraudeau D, Crame A, et al (2000) Upper Cretaceous echinoids from James Ross Basin, Antarctica, Géobios 33 4, 455-466

Carrano M. T., Benson R. B. J., et al (2012) The phylogeny of Tetanurae (Dinosauria: Theropoda), Journal of Systematic Palaeontology 10 2, 211-300 doi:10.1080/14772019.2011.630927

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!