Also known as Portland
Where: Connecticut (41.6° N, 72.6° W: paleocoordinates 23.3° N, 18.6° W)
• coordinate based on political unit
• outcrop-level geographic resolution
When: Portland Formation (Agawam Group), Hettangian to Hettangian (201.3 - 190.8 Ma)
• "Portland Arkose" originally thought to have been Late Triassic
• formation-level stratigraphic resolution
Environment/lithology: terrestrial; lithified, fine-grained, coarse, brown, red sandstone and poorly lithified, red mudstone
•"The lower portion of the slab, including the bone casts, consists of planar- laminated, fine- to coarse-grained, arkosic sandstone above which are three graded-bedding sequences. The underlying bed was composed of mud, as indicated by the thin shaly layers adhering to the underside of the slab near the bone casts. A mud lamina is exposed on one side of the slab as well."
Size class: macrofossils
Preservation: cast
Collected by Cullum & W. B. Rogers in 1864
Collection methods: salvage, quarrying,
• originally quarried for construction purposes, but rescued from use and donated to the Boston Society of Natural History
Primary reference: Anonymous. 1864. [Prof. W. B. Rogers presented an original cast in sandstone of bones from the Mesozoic Rocks of Middlebury, Ct.]. Proceedings of the Boston Society of Natural History 10:42 [M. Carrano/M. Carrano]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 11920: authorized by Matthew Carrano, entered by Matthew Carrano on 19.09.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
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Theropoda indet. Marsh 1881 theropod | |