Also known as Mehl's bird track locality
Where: Jefferson County, Colorado (39.8° N, 105.2° W: paleocoordinates 38.9° N, 66.4° W)
• coordinate based on nearby landmark
When: Muddy Sandstone Formation (Dakota Group), Late/Upper Albian to Late/Upper Albian (105.3 - 93.5 Ma)
• Late Albian-Early Cenomanian; footprints from the very base as the lowest member of the "Upper sandstone". 1 bed, lower stratigraphic level (Lockley et al. 2009)
• bed-level stratigraphic resolution
Environment/lithology: levee; massive sandstone and muddy shale
Size class: macrofossils
Preservation: mold/impression, trace
Collected by M. G. Mehl; reposited in the UCM
Collection methods: surface (in situ), ,
Primary reference: M. G. Mehl. 1931. Additions to the vertebrate record of the Dakota sandstone. American Journal of Science 21(125):441-452 [J. Alroy/S. Kuemmell/S. Kuemmell]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 60595: authorized by John Alroy, entered by Susanna Kümmell on 18.05.2006, edited by Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Walteria jeffersoni n. gen. n. sp." = Mehliella2
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"Caririchnium leonardii" = Hadrosauropodus leonardii3
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Aves | |
Ignotornis mcconnelli n. gen. n. sp.
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Reptilia | |
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