Indian Head Highway mosasaur: Maastrichtian, Maryland
collected by P. M. Kranz 1989

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Squamata - Mosasauridae
Halisaurus platyspondylus (Marsh 1869)
1 individual
USNM 442450
see common names

Country:United States State/province:Maryland County:Prince Georges
Coordinates: 38.8° North, 77.0° West (view map)
Paleocoordinates:39.7° North, 52.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:glauconitic poorly lithified sandstone
Includes fossils?Y
Environment:marine indet.
Modes of preservation:body
Size of fossils:macrofossils
Spatial orientation:random
Preservation of anatomical detail:good
Abundance in sediment:rare
Spatial resolution:parautochthonous
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Museum repositories:USNM
Collectors:P. M. Kranz Collection dates:1989
Database number:99439
Authorizer:M. Carrano Enterer:H. Street
Research group:vertebrate
Created:2010-11-11 09:12:15 Last modified:2010-11-10 16:12:15
Access level:the public Released:2010-11-11 09:12:15
Creative Commons license:CC BY
Reference information

Primary reference:

34196. R. B. Holmes and H.-D. Sues. 2000. A partial skeleton of the basal mosasaur Halisaurus platyspondylus from the Severn Formation (Upper Cretaceous: Maastrichtian) of Maryland. Journal of Paleontology 74(2):309-316 [M. Carrano/H. Street]