Where: Pennsylvania (41.6° N, 79.6° W: paleocoordinates 41.6° N, 79.6° W)
• coordinate stated in text
• hand sample-level geographic resolution
When: Titusville Till Formation, Tarantian (0.1 - 0.0 Ma)
• slightly below sample 1 which is dated as 39070 years old
Environment/lithology: mire or swamp; unlithified peat
Size class: mesofossils
Collection methods: quarrying, sieve
• In 1990, 174 kg of peat and silt from six samples was collected from the three organic horizons at depths of 0–60, 120–155, and 245–255 cm, respectively (Fig. 2). The 0-cm data position was defined at the top of the upper organic horizon. Chitinous remains of insects were recovered from the samples using a kerosene flotation technique (Ashworth, 1979). Disaggregation of highly compressed peats was aided by soaking them in a 5% NaOH solution. Arthropod remains were abundant and well preserved in all samples. All specimens, including those examined by Totten and Coope in 1967, were mounted onto micropaleontological slides and reposited in the Quaternary Entomology Laboratory at North Dakota State University.
Primary reference: S. Cong, A. C. Ashworth, D. P. Schwert and S. M. Totten. 1996. Fossil Beetle Evidence for a Short Warm Interval near 40,000 yr B.P. at Titusville, Pennsylvania. Quaternary Research 45:216-225 [M. Clapham/J. Karr/J. Karr]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 137204: authorized by Matthew Clapham, entered by Jered Karr on 12.12.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Insecta | |
Formicidae indet. Latreille 1802 ant | |
Trichoptera indet. Kirby 1815 caddisfly | |
Chrysomelidae indet. Latreille 1802 leaf beetle
Mantura sp. Stephens 1831 flea beetle | |
"Erirhinus aethiops" = Notaris aethiops, Ceutorhynchinae indet., Pelenomus sp., Pityophthorus sp., Carphoborus andersoni
"Erirhinus aethiops" = Notaris aethiops Fabricius 1792 snout beetle
Ceutorhynchinae indet. Gistel 1848 snout beetle
Pelenomus sp. Thomson 1859 snout beetle
Pityophthorus sp. Eichhoff 1864 bark beetle
Carphoborus andersoni Swaine 1919 bark beetle | |
Apion sp. Herbst 1797 weevil | |
Cytilus alternatus Say 1825 pill beetle
Curimopsis cf. moosilauke Johnson 1986 pill beetle | |
Catops sp. Paykull 1798 round fungus beetle | |
Staphylinidae indet., Omaliinae indet., "Holoboreaphilus nordenskioeldi" = Holoboreaphilus nordenskioldi, Pycnoglypta sp., Olophrum consimile, Olophrum rotundicolle, Eucnecosum sp., Eucnecosum brunnescens, "Scydmaenidae indet." = Scydmaeninae, Thanatophilus sp., Mycetoporus sp., Aleocharinae indet., Gymnusa sp., "Pselaphidae indet." = Pselaphinae, Euaesthetinae indet., Bledius sp., Stenus sp., Tachyporinae indet., "Tachinus tachyporoides" = Nitidotachinus tachyporoides
Staphylinidae indet. Latreille 1802 rove beetle
Omaliinae indet. MacLeay 1825 rove beetle
"Holoboreaphilus nordenskioeldi" = Holoboreaphilus nordenskioldi Maklin 1878 rove beetle
Olophrum consimile Gyllenhal 1810 rove beetle
Olophrum rotundicolle Sahlberg 1817 rove beetle
Eucnecosum sp. Reitter 1909 rove beetle
Eucnecosum brunnescens Sahlberg 1871 rove beetle
"Scydmaenidae indet." = Scydmaeninae Leach 1815 antlike stone beetle
Thanatophilus sp. Leach 1815 rove beetle
Mycetoporus sp. Mannerheim 1830 rove beetle
Aleocharinae indet. Fleming 1821 rove beetle
Gymnusa sp. Gravenhorst 1806 rove beetle
"Pselaphidae indet." = Pselaphinae Latreille 1802 rove beetle
Euaesthetinae indet. Thomson 1859 rove beetle
Bledius sp. Leach 1819 rove beetle
Stenus sp. Latreille 1796 rove beetle
Tachyporinae indet. MacLeay 1825 rove beetle
"Tachinus tachyporoides" = Nitidotachinus tachyporoides Horn 1877 rove beetle | |
Aphodius sp. Hellwig 1798 scarab beetle
Aegialia sp. Latreille 1807 scarab beetle | |
Helophorus sp. Fabricius 1775 water scavenger beetle | |
Hydrophilidae indet. Latreille 1802 water scavenger beetle
Enochrus sp. Thomson 1859 water scavenger beetle | |
Colymbetes sp. Clairville 1806 predaceous diving beetle | |
Carabidae indet., Notiophilus sp., Bembidion "anguliferum group", "Trechus crassiscapus" = Trechus (Trechus) crassiscapus, Patrobus sp., Patrobus septentrionis, Patrobus foveocollis, Patrobus stygicus, Amara sp., "Pterostichus patruelis" = Pterostichus (Phonias) patruelis, "Cymindis cribricollis" = Cymindis (Tarulus) cribricollis, "Carabus maeander" = Carabus (Homoeocarabus) maeander, Dyschirius sp., Elaphrus americanus, Elaphrus lapponicus, Blethisa catenaria
Carabidae indet. Latreille 1802 ground beetle
Notiophilus sp. Duméril 1805 ground beetle
Bembidion "anguliferum group" Latreille 1802 ground beetle
"Trechus crassiscapus" = Trechus (Trechus) crassiscapus Lindroth 1955 ground beetle
Patrobus sp. Dejean 1821 ground beetle
Patrobus septentrionis Dejean 1828 ground beetle
Patrobus foveocollis Eschscholtz 1823 ground beetle
Patrobus stygicus Chaudoir 1872 ground beetle
Amara sp. Bonelli 1810 ground beetle
"Pterostichus patruelis" = Pterostichus (Phonias) patruelis Dejean 1831 ground beetle
"Cymindis cribricollis" = Cymindis (Tarulus) cribricollis Dejean 1831 ground beetle
"Carabus maeander" = Carabus (Homoeocarabus) maeander Fischer von Waldheim 1822 ground beetle
Dyschirius sp. Bonelli 1810 ground beetle
Elaphrus americanus Dejean 1831 ground beetle
Elaphrus lapponicus Gyllenhal 1810 ground beetle
Blethisa catenaria Brown 1944 ground beetle |