right bank, Rio Negro (MACN): Early/Lower Campanian - Middle Campanian, Argentina
collected by R. Wichmann 1912–1916

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
Gastropoda indet. Cuvier 1795
Powell 2003
Reptilia - Chelonii
Chelonia indet. (Latreille 1800)
Powell 2003
    = Chelonii indet. Latreille 1800
de Broin and de la Fuente 1993
synonym of Testudines
Pelomedusoides ? ou Chelidae ou Cryptodire meiolaniidé
Reptilia - Dinosauria
Dinosauria indet. Owen 1842
Frenguelli 1951 1 specimen
egg (MACN specimen)
Reptilia
Laplatasaurus araukanicus Huene 1927
1 specimen
MACN 5017, an anterior caudal vertebra, five distal caudal centra, a radius, a distal ulna, a complete metacarpus, a distal tibia, and two metatarsals
    = Titanosaurus sp. Lydekker 1877
Powell 2003
    = Lithostrotia indet. Wilson and Upchurch 2003
Gallina and Otero 2015
Antarctosaurus wichmannianus n. gen., n. sp. Huene 1927
1 individual
MACN 6904
see common names

Geography
Country:Argentina State/province:Río Negro County:El Cuy
Coordinates: 39.1° South, 67.7° West (view map)
Paleocoordinates:42.1° South, 52.4° West
Basis of coordinate:estimated from map
Altitude:221 meters
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Campanian 10 m.y. bin:Cretaceous 7
Key time interval:Early/Lower Campanian - Middle Campanian
Age range of interval:83.50000 - 70.60000 m.y. ago
Stratigraphy
Geological group:Neuquén Formation:Anacleto
Stratigraphic resolution:group of beds
Stratigraphy comments: formation assignment questionable; Río Colorado Subgroup - some have referred this site to the overlying Allen Fm. Egg from the lower part of the "classic Rocanian locality of General Roca"
Lithology and environment
Primary lithology:fine,gray,red sandstone
Secondary lithology:coarse,concretionary,brown,red calcareous sandstone
Includes fossils?Y
Lithology description: "very light grey, fine sandstone with light grey and pink patches, 2.3 m thick."
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:medium
Associated major elements:some
Disassociated major elements:some
Disassociated minor elements:some
Fragmentation:frequent
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ),field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:MACN
Collectors:R. Wichmann Collection dates:1912–1916
Metadata
Also known as:General Roca
Database number:51580
Authorizer:M. Carrano, R. Benson Enterer:M. Carrano, R. Benson
Modifier:M. Carrano Research group:vertebrate
Created:2005-06-08 11:53:02 Last modified:2021-04-13 20:47:04
Access level:the public Released:2005-06-08 11:53:02
Creative Commons license:CC BY
Reference information

Primary reference:

59060. F. v. Huene. 1929. Los sauriquios y ornitisquios del Cretáceo argentino. Anales del Museo de La Plata, serie 2 3:1-196 [M. Carrano/M. Carrano]

Secondary references:

59610 J. F. Bonaparte. 1978. El Mesozoico de America de Sur y sus Tetrapodos [The Mesozoic of South America and its tetrapods]. Opera Lilloana 26:1-596 [M. Carrano/M. Carrano]
63573 J. F. Bonaparte. 1984. I dinosauri dell’Argentina [. In G. M. Ronzoni, M. L. Greggio, & T. B. Guarinoni (eds.), Sulle Orme dei Dinosauri 125-143 [M. Carrano/M. Carrano]
16547ETE J. F. Bonaparte. 1996. Cretaceous tetrapods of Argentina. Münchner Geowissenschaften Abhandlungen 30:73-130 [M. Carrano/M. Carrano/M. Carrano]
13929ETE J. F. Bonaparte and Z. B. Gasparini. 1979. Los sauropodos de los grupos Neuquén y Chubut, y sus relaciones cronologicas [The sauropods of the Neuquén and Chubut Groups, and their chronological relationships]. Actas del VII Congreso Geológico Argentino, Neuquén 2:393-406 [M. Carrano/M. Carrano/M. Carrano]
42415 F. de Broin and M. de la Fuente. 1993. Les tortues fossiles d'Argentine: synthese [The fossil turtles of Argentina: synthesis]. Annales de Paléontologie (Invertebrés-Vertebrés) 79(3):169-232 [R. Benson/R. Benson/M. Carrano]
76236 I. Díaz-Martínez, C. Cónsole-Ganella, S. Valais and L. Salgado. 2018. Vertebrate tracks from the Paso Córdoba fossiliferous site (Anacleto and Allen formations, Upper Cretaceous), Northern Patagonia,Argentina: preservational, environmental and palaeobiological implications. Cretaceous Research 83:207-220 [M. Carrano/M. Carrano]
40486 J. Frenguelli. 1951. Un huevo fósil del Rocanense [A fossil egg from the Rocanian]. Revista de la Asociación Geológica Argentina 6(2):108-112 [M. Carrano/M. Carrano]
76301 P. A. Gallina and A. Otero. 2015. Reassessment of Laplatasaurus araukanicus (Sauropoda: Titanosauria), from the Late Cretaceous of Patagonia, Argentina. XXIX Jornadas Argentinas de Paleontología de Vertebrados. Resúmenes. Ameghiniana 52(4 (suppl.)):18-19 [M. Carrano/M. Carrano/M. Carrano]
76304 P. A. Gallina and A. Otero. 2015. Reassessment of Laplatasaurus araukanicus (Sauropoda: Titanosauria) from the Upper Cretaceous of Patagonia, Argentina. Ameghiniana 52(5):487-501 [M. Carrano/M. Carrano]
13712ETE J. E. Powell. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173 [M. Carrano/M. Carrano/M. Carrano]