Boonton tracksite: Sinemurian, New Jersey
collected by I. C. Russell, E. D. Carter, P. Olsen 1880, 1920, 1980

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Grallatoridae
Brontozoum approximatum Hitchcock 1865
synonym of Eubrontes giganteus
Grallator formosus Hitchcock 1858
synonym of Grallator tenuis
see common names

Geography
Country:United States State/province:New Jersey County:Morris
Coordinates: 40.9° North, 74.4° West (view map)
Paleocoordinates:22.7° North, 19.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Early/Lower Jurassic
Stage:Sinemurian 10 m.y. bin:Jurassic 1
Key time interval:Sinemurian
Age range of interval:199.50000 - 192.90000 m.y. ago
Stratigraphy
Geological group:Agawam Formation:Boonton
Stratigraphic resolution:group of beds
Stratigraphy comments: Olsen (1980) reports four track-bearing levels of similar lithology.
Lithology and environment
Primary lithology:"cross stratification",very fine,coarse,gray sandstone
Secondary lithology:"cross stratification",concretionary,dolomitic,red sandstone
Includes fossils?Y
Includes fossils?Y
Environment:lacustrine indet.
Taphonomy
Modes of preservation:mold/impression,trace
Size of fossils:macrofossils
Spatial orientation:life position
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:surface (in situ),field collection,survey of museum collection,observed (not collected)
Reason for describing collection:general faunal/floral analysis
Collectors:I. C. Russell, E. D. Carter, P. Olsen Collection dates:1880s, 1920s, 1980s
Metadata
Database number:91695
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:M. Carrano Research group:vertebrate
Created:2009-10-15 18:15:30 Last modified:2017-07-19 16:58:48
Access level:the public Released:2009-10-15 18:15:30
Creative Commons license:CC BY
Reference information

Primary reference:
30910.ETE C. H. Hitchcock. 1889. Recent progress in ichnology. Proceedings of the Boston Society of Natural History 24(8):117-127 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

54197 Anonymous. 1923. Dinosaur remains near New York. Natural History 23(1):98 [M. Carrano/M. Carrano/M. Carrano]
62790 P. E. Olsen. 1980. The latest Triassic and early Jurassic formations of the Newark Basin (eastern North America): stratigraphy, structure, & correlation. The Bulletin of the New Jersey Academy of Science 25(2):25-51 [M. Carrano/M. Carrano]