DG6-1, Santa Marta Cove (Cretaceous of Antarctica)

Also known as James Ross Island

Where: Antarctica (63.9° S, 57.8° W: paleocoordinates 61.8° S, 68.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Gamma Member (Snow Hill Island Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• Lower levels of the Snow Hill Island Formation (Coria et al. 2013). Earlier assignments to lower Gamma Member of Santa Marta Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; tabular, green, silty sandstone and concretionary sandstone

• stranded along a beach, also described as "nearshore marine", "shallow marine"
• "massive green silty sandstones with abundant trace fossils"; "hard sandstone concretions within a lithofacies comprised of thinkly laminated fine to very fine sandstones."

Size class: macrofossils

Preservation: mold/impression, trace

Collected by E. Olivero & R. Scasso, J. Moly & R. Coria in 1986, 2008; reposited in the MLP

Collection methods: quarrying, surface (float), mechanical,

Primary reference: Anonymous. 1986. Antarctic dinosaur fossil. Science News 130(21):333 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 47059: authorized by Matthew Carrano, entered by Matthew Carrano on 03.02.2005, edited by Philip Mannion and Kaitlin Maguire

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Thyreophora indet.
Thyreophora indet.
"a small, armored herbivore of the order Ornithischia"
Cephalopoda
 Nautiloidea -
Nautiloidea indet.3
Nautiloidea indet.3 Agassiz 1847 nautiloid
 Nautilida - Nautilidae
Cymatoceras sp.3
Cymatoceras sp.3 Hyatt 1884 nautiloid
Gastropoda
  -
Gastropoda indet.3
Gastropoda indet.3 Cuvier 1795 snail
Bivalvia
  -
Bivalvia indet.3
Bivalvia indet.3 Linnaeus 1758 clam
Reptilia
 Ornithischia -
Trinisaura santamartaensis n. gen. n. sp.2
Trinisaura santamartaensis n. gen. n. sp.2 Coria et al. 2013 ornithopod
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)
 Ornithischia - Nodosauridae
Antarctopelta oliveroi n. gen. n. sp.4
Antarctopelta oliveroi n. gen. n. sp.4 Salgado and Gasparini 2006 ankylosaur
"a small, armored herbivore of the order Ornithischia"
 Saurischia -
Lithostrotia indet.1
Lithostrotia indet.1 Wilson and Upchurch 2003 sauropod
11-II-20-1, incomplete middle caudal vertebra
Chondrichthyes
 Hexanchiformes - Hexanchidae
Notidanodon sp.4
Notidanodon sp.4 Cappetta 1975 cow shark
"fish vertebrae"
1Cerda et al. 2012; 2Coria et al. 2013; 3Gasparini et al. 1996; 4Salgado and Gasparini 2006