Iron Lightning Member type locality (YPM Loc. 74): Lancian, South Dakota
collected by K. Waage 1960

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Crasssostrea sp.
Chamberlain et al. 2023
Chondrichthyes - Rajiformes - Rhinobatidae
Myledaphus bipartitus Cope 1876
Chamberlain et al. 2023
Reptilia - Theropoda
Theropoda indet. (Marsh 1881)
Chamberlain et al. 2023
teeth, claws
Reptilia - Theropoda - Ornithomimidae
? Ornithomimidae indet. Marsh 1890
Chamberlain et al. 2023 1 specimen
YPM VP.06170
Reptilia - Hadrosauridae
Hadrosauridae indet. Cope 1869
Chamberlain et al. 2023
teeth
Reptilia - Ceratopsidae
Ceratopsidae indet. Marsh 1888
Chamberlain et al. 2023
teeth
Mammalia - Pediomyidae
Pediomys sp. Marsh 1889
Mammalia - Cimolestidae
Delphodon cf. comptus (Marsh 1889)
Mammalia - Multituberculata - Cimolomyidae
Moeniscoessus robustus
    = Meniscoessus robustus Marsh 1889
Alroy 2002
Cimolomys gracilis Marsh 1889
Bivalvia - Cardiida - Corbiculidae
Corbicula sp. Megerle 1811
Chamberlain et al. 2023
Bivalvia - Pectinida - Anomiidae
Anomia sp. Linnaeus 1758
Chamberlain et al. 2023
see common names

Geography
Country:United States State/province:South Dakota County:Ziebach
Coordinates: 45.1° North, 101.8° West (view map)
Paleocoordinates:51.0° North, 75.6° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
*Epoch:Senonian
Key time interval:Lancian
Age range of interval:72.10000 - 66.00000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Geological group:Montana Formation:Fox Hills Member:Iron Lightning
Stratigraphic resolution:bed
Stratigraphy comments: ca. 14 m below base of overlying Hell Creek Fm.
Lithology and environment
Primary lithology:"cross stratification",very fine,medium,concretionary sandstone
Includes fossils?Y
Lithology description: a "Colgate lithofacies" sand body, "a sandy, very fine to medium grained subgraywacke about 12 m thick, which weathers grayish white. Present are thin bands of iron stained shale and some carbonaceous laminae. Cross bedding is prominent in these beds. Also common are brown-colored ovoid concretions up to 4 m long."
Environment:coarse channel fill
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Fragmentation:frequent
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:surface (float),surface (in situ),field collection
Reason for describing collection:general faunal/floral analysis
Collectors:K. Waage Collection dates:1960s
Metadata
Database number:14571
Authorizer:J. Alroy, M. Carrano Enterer:J. Alroy, M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:1993-09-27 00:00:00 Last modified:2023-03-06 12:59:34
Access level:the public Released:1993-09-27 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
3520. K. M. Waage. 1968. Peabody Museum of Natural History Bulletin 27 [J. Alroy/J. Alroy]

Secondary references:

6294 J. Alroy. 2002. Synonymies and reidentifications of North American fossil mammals. [J. Alroy/J. Alroy/M. Kouvari]
83927 J. A. Chamberlain, K. Knoll, and J. J. W. Sertich. 2023. Non-avian theropod phalanges from the marine Fox Hills Formation (Maastrichtian), western South Dakota, USA. PeerJ 11:e14665:1-32 [M. Carrano/M. Carrano]