LCLU Interstate 30 excavation: Danian, Arkansas

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Entobia sp.
Chondrichthyes
Chondrichthyes indet. Huxley 1880
one lamniform type
Chondrichthyes - Chimaeriformes
Chimaeriformes indet. Obruchev 1953
Chondrichthyes - Carcharhiniformes - Triakidae
Palaeogaleus vincenti (Daimeries 1889)
Chondrichthyes - Orectolobiformes - Ginglymostomatidae
Ginglymostoma subafricanum Arambourg 1952
Chondrichthyes - Lamniformes - Odontaspididae
Palaeohypotodus rutori
Odontaspis winkleri Leriche 1905
Chondrichthyes - Lamniformes - Carchariidae
Carcharias cf. whitei
Carcharias sp. Rafinesque 1810
Chondrichthyes - Myliobatiformes
Myliobatiformes indet. Compagno 1973
Chondrichthyes - Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810
Dasyatis cf. hexagonalis Arambourg 1952
Hypolophites sp. Stromer 1910
Chondrichthyes - Myliobatiformes - Rhinopteridae
Rhinoptera sp. Cuvier 1829
Chondrichthyes - Myliobatiformes - Myliobatidae
Myliobatis sp. Cuvier 1816
Osteichthyes
Osteichthyes indet. Huxley 1880
Reptilia - Crocodylia
Crocodylia indet. (Owen 1842)
Gastropoda - Turritellidae
Turritella sp. Lamarck 1799
Bivalvia - Nuculanida - Nuculanidae
Nuculana sp. Link 1807
Malacostraca - Decapoda
Brachyura indet. (Latreille 1802)
original and current combination Brachyuri
"crab"
Nodosariata - Vaginulinida - Vaginulinidae
Lenticulina sp. Lamarck 1804
unclassified
Ophiomorpha sp. Lundgren 1891
Gastrochaenolites sp. Leymerie 1842
see common names

Geography
Country:United States State/province:Arkansas County:Hot Spring
Coordinates: 34.4° North, 92.8° West (view map)
Paleocoordinates:38.4° North, 72.2° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Paleocene
Stage:Danian 10 m.y. bin:Cenozoic 1
Key time interval:Danian
Age range of interval:66.00000 - 61.60000 m.y. ago
Stratigraphy
Geological group:Midway Formation:Clayton Limestone
Stratigraphy comments: over 20 m of massive, dark gray
clays containing invertebrate casts and molds, thin interbedded limestone units, and locally phosphatic, sand and
pebble lag deposits
Lithology and environment
Primary lithology: sandstone
Lithology description: lag deposit; locally phosphatic, sand and pebble lag deposits
Environment:marine indet.
Taphonomy
Modes of preservation:body,mold/impression,trace,concretion
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Collection excludes:all microfossils,some macrofossils,ichnofossils
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:invertebrates, foraminifera, and ichnofossils noted but not fully reported
Metadata
Database number:206776
Authorizer:P. Holroyd Enterer:P. Holroyd
Modifier:P. Holroyd Research group:vertebrate
Created:2019-12-01 16:32:52 Last modified:2019-12-01 16:44:32
Access level:the public Released:2019-12-01 16:32:52
Creative Commons license:CC BY
Reference information

Primary reference:
71109. H. M. Maisch, M. A. Becker, and M. L. Griffiths. 2020. Chondrichthyans from the Lower Clayton Limestone Unit of the Midway Group (Paleocene) near Malvern, Arkansas, USA, with comments on the K/Pg boundary. Palaeontologische Zeitschrift 94:561-593 [P. Holroyd/P. Holroyd/P. Mannion]