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Marambio - Santa Marta, Western Antarctica, Antarctica

Group	Marambio
Formation	Santa Marta
Member(s)	Gamma
Age:	85.8 - 70.6 Ma Late/Upper Cretaceous
Interval	Late Santonian - Middle Campanian
Lithology	sandstone/siltstone, siltstone/sandstone, siltstone
Number of Collections	4
Number of Occurrences	35

Recorded Sample Locations

Location	Region	Stratigraphic Name
Echinoidea	Western Antarctica, Antarctica	Marambio - Santa Marta
Rabot Point	Western Antarctica, Antarctica	Marambio - Santa Marta
Lachman Crags	Western Antarctica, Antarctica	Marambio - Santa Marta
Dinosaurio River	Western Antarctica, Antarctica	Marambio - Santa Marta - Gamma

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Gustav - Hidden Lake	86.3 - 83.5 Ma Late/Upper Cretaceous	siltstone/sandstone, sandstone	531
Marambio - Lopez de Bertodano	66.0 - 56.0 Ma Paleocene	sandstone/siltstone, "siliciclastic", mudstone, mudstone/sandstone	91
Marambio - Santa Marta - Gamma	83.5 - 66.0 Ma Late/Upper Cretaceous	sandstone	2
Marambio - Snow Hill Island	83.5 - 66.0 Ma Late/Upper Cretaceous	sandstone	27

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Cyclonephelium sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Areoligeraceae : *Cyclonephelium*	86.3 - 72.1 Ma Late/Upper Cretaceous
Odontochitina sp. genus	6	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : *Odontochitina*	86.3 - 72.1 Ma Late/Upper Cretaceous
Odontochitina cribropoda species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Ceratiaceae : Odontochitina : *Odontochitina cribropoda*	86.3 - 72.1 Ma Late/Upper Cretaceous
Heterosphaeridium heteracanthum species	7	Chromista : Myzozoa : Dinophyceae : Gonyaulacales : Gonyaulacaceae : Heterosphaeridium : *Heterosphaeridium heteracanthum*	86.3 - 72.1 Ma Late/Upper Cretaceous
Operculodinium sp. genus	6	*Operculodinium*	86.3 - 72.1 Ma Late/Upper Cretaceous
Palaeohystrichophora infusorioides species	7	Chromista : Myzozoa : Dinophyceae : Peridiniales : Peridiniaceae : Palaeohystrichophora : *Palaeohystrichophora infusorioides*	86.3 - 72.1 Ma Late/Upper Cretaceous
Microcachryidites antarcticus species	7	Plantae : Tracheophyta : Pinopsida : Pinales : Podocarpaceae : Microcachryidites : *Microcachryidites antarcticus*	86.3 - 72.1 Ma Late/Upper Cretaceous
Phyllocladidites mawsonii species	7	Plantae : Tracheophyta : Pinopsida : Pinales : Podocarpaceae : Phyllocladidites : *Phyllocladidites mawsonii*	86.3 - 72.1 Ma Late/Upper Cretaceous
Rhoipites sp. genus	6	Plantae : Tracheophyta : Magnoliopsida : *Rhoipites*	86.3 - 72.1 Ma Late/Upper Cretaceous
Tricolporites sp. genus	6	Plantae : Spermatophyta : Magnoliopsida : *Tricolporites*	86.3 - 72.1 Ma Late/Upper Cretaceous
Triorites minor species	7	Plantae : Tracheophyta : Magnoliopsida : Triorites : *Triorites minor*	86.3 - 72.1 Ma Late/Upper Cretaceous
Proteacidites sp. genus	6	Plantae : Tracheophyta : Magnoliopsida : Proteales : *Proteacidites*	86.3 - 72.1 Ma Late/Upper Cretaceous
Capillithyris sp. genus	6	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Capillithyrididae : *Capillithyris*	86.3 - 72.1 Ma Late/Upper Cretaceous
Kingena mesembrina species	7	Animalia : Brachiopoda : Rhynchonellata : Terebratulida : Kingenidae : Kingena : *Kingena mesembrina*	86.3 - 72.1 Ma Late/Upper Cretaceous
Notidanodon sp. genus	6	Animalia : Chordata : Elasmobranchii : Hexanchiformes : Hexanchidae : *Notidanodon*	83.5 - 66 Ma Late/Upper Cretaceous
Lakumasaurus antarcticus species	7	Animalia : Chordata : Reptilia : Squamata : Mosasauridae : Taniwhasaurus : *Lakumasaurus antarcticus*	83.5 - 66 Ma Late/Upper Cretaceous
Nordenskjoeldaster sp. genus	6	Animalia : Echinodermata : Echinoidea : Holasteroida : *Nordenskjoeldaster*	85.8 - 70.6 Ma Late/Upper Cretaceous
Huttonechinus sp. genus	6	Animalia : Echinodermata : Echinoidea : Holasteroida : Corystusidae : *Huttonechinus*	85.8 - 70.6 Ma Late/Upper Cretaceous
Micraster sp. genus	6	Animalia : Echinodermata : Echinoidea : Spatangoida : Micrasteridae : *Micraster*	85.8 - 70.6 Ma Late/Upper Cretaceous
Dimitobelus (Dimitocamax) cramensis species	7	Animalia : Mollusca : Cephalopoda : Belemnitida : Dimitobelidae : Dimitobelus : *Dimitobelus (Dimitocamax) cramensis*	86.3 - 72.1 Ma Late/Upper Cretaceous
Stoverisporites microverrucatus species	7	Plantae : Bryophyta : Stoverisporites : *Stoverisporites microverrucatus*	86.3 - 72.1 Ma Late/Upper Cretaceous
Dryadopollis sp. genus	6	Plantae : Magnoliophyta : *Dryadopollis*	86.3 - 72.1 Ma Late/Upper Cretaceous
Camarozonosporites ambigens species	7	Plantae : Tracheophyta : Lycopodiopsida : Lycopodiales : Camarozonosporites : *Camarozonosporites ambigens*	86.3 - 72.1 Ma Late/Upper Cretaceous
Densoisporites velatus species	7	Plantae : Tracheophyta : Lycopodiopsida : Selaginellales : Selaginellaceae : Densoisporites : *Densoisporites velatus*	86.3 - 72.1 Ma Late/Upper Cretaceous
Herkosporites elliottii species	7	Plantae : Tracheophyta : Lycopodiopsida : Selaginellales : Selaginellaceae : Herkosporites : *Herkosporites elliottii*	86.3 - 72.1 Ma Late/Upper Cretaceous
Cyatheacidites annulatus species	7	Plantae : Pteridophyta : Pteridopsida : Cyatheales : Cyatheacidites : *Cyatheacidites annulatus*	86.3 - 72.1 Ma Late/Upper Cretaceous
Clavifera triplex species	7	Plantae : Tracheophyta : Polypodiopsida : Gleicheniales : Gleicheniaceae : Clavifera : *Clavifera triplex*	86.3 - 72.1 Ma Late/Upper Cretaceous
Ornamentifera sp. genus	6	Plantae : Tracheophyta : Polypodiopsida : Gleicheniales : Gleicheniaceae : *Ornamentifera*	86.3 - 72.1 Ma Late/Upper Cretaceous
Ischyosporites volkheimeri species	7	Plantae : Pteridophyta : Pteridopsida : Ischyosporites : *Ischyosporites volkheimeri*	86.3 - 72.1 Ma Late/Upper Cretaceous
Rugulatisporites mallatus species	7	Plantae : Tracheophyta : Polypodiopsida : Osmundales : Osmundaceae : Rugulatisporites : *Rugulatisporites mallatus*	86.3 - 72.1 Ma Late/Upper Cretaceous

References

Doyle P. (1990) New records of dimitobelid belemnites from the Cretaceous of James Ross Island, Antarctica, Alcheringa 14, 159-175

Sandy M. R. (1991) Cretaceous brachiopods from James Ross Island, Antarctic Peninsula, and their paleobiogeographic affinities, Journal of Paleontology 65 3, 396-411

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

Novas F. E., Fernández M., et al (2002) Lakumasaurus antarcticus, n. gen. et sp., a new mosasaur (Reptilia, Squamata) from the Upper Cretaceous of Antarctica, Ameghiniana 39 2, 245-249

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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