SE of Suffield center (Jurassic to of the United States)

Where: Connecticut (42.0° N, 72.7° W: paleocoordinates 23.7° N, 18.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Portland Formation (Agawam Group), Hettangian to Hettangian (201.3 - 190.8 Ma)

• Lower to middle Portland Formation

• bed-level stratigraphic resolution

Environment/lithology: pond; lithified siliciclastic sediments

• Ephemeral floodplain pond or shallow lake deposit

Size class: macrofossils

Preservation: adpression

Reposited in the YPM

Primary reference: R. S. Kelly, A. J. Ross, and P. Davidson. 2017. Mesozoic Holcoptera (Coleoptera: Coptoclavidae) from England and the United States. Proceedings of the Geologists' Association 128:659-674 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187762: authorized by Matthew Clapham, entered by Matthew Clapham on 11.08.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Coleoptera - Coptoclavidae
Holcoptera schlotheimi Giebel 1856 beetle
YPM 202468, 202466, 202467, 202522, 202529, 202541, 202460, 202470, 202469, 202475, 202476, 202482, 202517, 202525, 202542, 202555, 202582, 202459, 202473, 202492, 202516, 202540, 202544, 202458, 202485, 202495, 202507, 202505, 202474, 202462, 202456, 202463, 202536, 202455, 202457, 202477, 202478, 202479, 202484, 202487, 202496, 202497, 202501, 202502, 202503, 202508, 202509, 202523, 202524, 202530, 202548, 202549, 202551, 202552. 202554, 202556, 202557, 202562, 202564, 202577, 202581, 202583, 202584, 202586