DG6-1, Santa Marta Cove: Late/Upper Campanian, Antarctica
collected by E. Olivero & R. Scasso, J. Moly & R. Coria 1986, 2008

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda
Nautiloidea indet. Agassiz 1847
Gasparini et al. 1996
Cephalopoda - Nautilida - Nautilidae
Cymatoceras sp. Hyatt 1884
Gasparini et al. 1996
Gastropoda
Gastropoda indet. Cuvier 1795
Gasparini et al. 1996
Bivalvia
Bivalvia indet. Linnaeus 1758
Gasparini et al. 1996
Chondrichthyes - Squalomorphii - Hexanchidae
Pisces indet. Linnaeus 1758
Gasparini et al. 1996
"fish vertebrae"
    = Notidanodon sp. Cappetta 1975
Salgado and Gasparini 2006
Reptilia - Nodosauridae
Thyreophora indet.
2 individuals
"a small, armored herbivore of the order Ornithischia"
    = Nodosauridae indet. Marsh 1890
Gasparini et al. 1996
    = Ankylosauria indet. Osborn 1923
Salgado and Gasparini 2004
MLP 86-X-28-1
    = Ankylosauridae indet. Brown 1908
Salgado and Gasparini 2004
Gasparini 1987
    = Antarctopelta oliveroi n. gen., n. sp. Salgado and Gasparini 2006
Salgado and Gasparini 2006
nomen dubium belonging to Nodosauridae
MLP 86-X-28-1, partial skeleton, including cranial remains (holotype)
Reptilia
Trinisaura santamartaensis n. gen., n. sp. Coria et al. 2013
Coria et al. 2013 1 specimen
MLP08-III-1-1 - holotype (disarticulated and partial skeleton that includes one incomplete dorsal vertebra, three sacral centra, seven caudal vertebrae; two incomplete dorsal rib shafts, one proximal haemal arch, incomplete right scapulocoracoid, incomplete right humerus, two metacarpals, both ilia, right pubis, right ischium, right femur, right distal tibia, incomplete metatarsal III, first phalanx of pedal digit III, two phalanges of pedal digit IV, and indeterminate fragments)
Lithostrotia indet. Wilson and Upchurch 2003
Cerda et al. 2012 1 specimen
11-II-20-1, incomplete middle caudal vertebra
see common names

Geography
Country:Antarctica
Coordinates: 63.9° South, 57.8° West (view map)
Paleocoordinates:61.8° South, 68.5° West
Basis of coordinate:estimated from map
Altitude:7 meters
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Late/Upper Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
Stratigraphy
Geological group:Marambio Formation:Snow Hill Island Member:Gamma
Stratigraphic resolution:group of beds
Stratigraphy comments: Lower levels of the Snow Hill Island Formation (Coria et al. 2013). Earlier assignments to lower Gamma Member of Santa Marta Formation
Lithology and environment
Primary lithology:tabular,green silty sandstone
Secondary lithology:concretionary sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: "massive green silty sandstones with abundant trace fossils"; "hard sandstone concretions within a lithofacies comprised of thinkly laminated fine to very fine sandstones."
Environment:marginal marine indet.
Geology comments: stranded along a beach, also described as "nearshore marine", "shallow marine"
Taphonomy
Modes of preservation:body,mold/impression,trace
Size of fossils:macrofossils
Spatial orientation:random
Preservation of anatomical detail:good
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Fragmentation:extreme
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:selective quarrying,surface (float),mechanical,field collection
Rock censused:600 cm2 (area)
Reason for describing collection:general faunal/floral analysis
Museum repositories:MLP
Collectors:E. Olivero & R. Scasso, J. Moly & R. Coria Collection dates:1986, 2008
Metadata
Also known as:James Ross Island
Database number:47059
Authorizer:M. Carrano, P. Mannion Enterer:M. Carrano, P. Mannion, K. Maguire
Modifier:M. Carrano Research group:vertebrate
Created:2005-02-03 11:01:09 Last modified:2022-09-20 10:55:27
Access level:the public Released:2005-02-03 11:01:09
Creative Commons license:CC BY
Reference information

Primary reference:

63732. Anonymous. 1986. Antarctic dinosaur fossil. Science News 130(21):333 [M. Carrano/M. Carrano]

Secondary references:

64040 V. M. Arbour and P. J. Currie. 2016. Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs. Journal of Systematic Palaeontology 14(5):385-444 [G. Lloyd/G. Lloyd/M. Carrano]
71292 A. O. Averianov, P. P. Skutschas, R. Schellhorn, A. V. Lopatin, P. N. Kolosov, V. V. Kolchanov, D. D. Vitenko, D. V. Grigoriev, and T. Martin. 2019. The northernmost sauropod record in the Northern Hemisphere. Lethaia 53:362-368 [P. Mannion/P. Mannion/M. Carrano]
25460ETE J. A. Case, J. E. Martin, and M. A. Reguero. 2007. A dromaeosaur from the Maastrichtian of James Ross Island and the Late Cretaceous Antarctic dinosaur fauna. In A. K. Cooper, C. R. Raymond, & the ISAES Editorial Team (eds.), Antarctica: A Keystone in a Changing World. Online Proceedings of the 10th ISAES. United States Geological Survey and the National Academies. USGS Open-File Report 2007-1047, Short Research Paper 083:1-4 [M. Carrano/M. Carrano/M. Carrano]
39484 I. A. Cerda, A. Paulina Carabajal, L. Salgado, R. A. Coria, M. A. Reguero, C. P. Tambussi, and J. J. Moly. 2012. The first record of a sauropod dinosaur from Antarctica. Naturwissenschaften 99:83-87 [P. Mannion/P. Mannion/P. Mannion]
44203 R. A. Coria, J. J. Moly, M. Reguero, S. Santillana, and S. Marenssi. 2013. A new ornithopod (Dinosauria; Ornithischia) from Antarctica. Cretaceous Research 41:186-193 [P. Mannion/P. Mannion/P. Mannion]
76401 R. A. Coria, L. Salgado, Z. Gasparini and J. J. Moly. 2011. Nuevos materiales del ejemplar holotipo de Antarctopelta oliveroi Salgado y Gasparini (Dinosauria, Ornithischia, Ankylosauria) del Cretácico Superior de Antártida [New materials of the holotype specimen of Antarctopelta oliveroi Salgado and Gasparini (Dinosauria, Ornithischia, Ankylosauria) from the Upper Cretaceous of Antarctica]. Reunión Anual de Comunicaciones de la Asociación Paleontológica Argentina. LIbro de Resúmenes y Actividades. Ameghiniana 48(4 (suppl.)):R10 [M. Carrano/M. Carrano/M. Carrano]
76413 P. Cruzado-Caballero, L. S. Filippi, A. H. Méndez, A. C. Garrido, and R. D. Juárez Valieri. 2016. New record of ornithopod dinosaur from the Plottier Formation (Upper Cretaceous), Patagonia, Argentina. Annales de Paléontologie 102:145-150 [M. Carrano/M. Carrano]
82633 A. J. de Ricqlès, X. Pereda Suberbiola, Z. Gasparini and E. Olivero. 2001. Histology of dermal ossifications in an ankylosaurian dinosaur from the Late Cretaceous of Antarctica. VII International Symposium on Mesozoic Terrestrial Ecosystems. Asociación Paleontológica Argentina Publicación Especial 7:171-174 [M. Carrano/M. Carrano]
12528ETE Z. Gasparini, X. Pereda-Suberbiola, and R. E. Molnar. 1996. New data on the ankylosaurian dinosaur from the Late Cretaceous of the Antarctic Peninsula. Memoirs of the Queensland Museum 39(3):583-594 [M. Carrano/M. Carrano/M. Carrano]
45986 A. Otero and M. Reguero. 2013. Dinosaurs (Reptilia, Archosauria) at Museo de La Plata, Argentina: annotated catalogue of the type material and Antarctic specimens. Palaeontologia Electronica 16(1):3T:1-24 [P. Mannion/J. Tennant/M. Carrano]
76422 S. F. Poropat. 2019. Final report. Winston Churchill Memorial Trust of Australia 1-56 [M. Carrano/M. Carrano/M. Carrano]
12945ETE T. H. Rich. 1996. Significance of polar dinosaurs in Gondwana. Memoirs of the Queensland Museum 39(3):711-717 [M. Carrano/M. Carrano/M. Carrano]
54137 T. H. Rich, R. A. Gangloff, and W. R. Hammer. 1997. Polar dinosaurs. In P. J. Currie, K. Padian (eds.), Encyclopedia of Dinosaurs 562-573 [M. Carrano/M. Carrano/P. Wagner]
16678ETE L. Salgado and Z. Gasparini. 2004. Revisión del primer dinosaurio Antártico (Ornithischia, Ankylosauria): implicancia paleobiogeográfica [Revision of the first Antarctic dinosaur (Ornithischia, Ankylosauria): paleobiogeographic implication]. V* Simposio Argentino y I° Latinoamericano sobre Investigaciones Antárticas, Buenos Aires [M. Carrano/M. Carrano]
17070ETE L. Salgado and Z. Gasparini. 2006. Reappraisal of an ankylosaurian dinosaur from the Upper Cretaceous of James Ross Island (Antarctica). Geodiversitas 28(1):119-135 [M. Carrano/K. Maguire/M. Carrano]