Sample 3, Titusville Site (0-60 cm): Tarantian, Pennsylvania

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Bembidion morulum LeConte 1863
1 specimen
Insecta - Hemiptera - Saldidae
2 specimens
Insecta - Coleoptera - Byrrhidae
1 specimen
Insecta - Coleoptera - Cantharidae
Podabrus sp. Leconte 1850
1 specimen
Insecta - Coleoptera - Elateridae
1 specimen
Insecta - Coleoptera - Curculionidae
1 specimen
2 specimens
1 specimen
Insecta - Coleoptera - Hydrophilidae
4 specimens
Enochrus sp. Thomson 1859
2 specimens
Insecta - Coleoptera - Helophoridae
5 specimens
5 specimens
Insecta - Coleoptera - Hydraenidae
1 specimen
1 specimen
Insecta - Coleoptera - Staphylinidae
20 specimens
1 specimen
Euaesthetinae indet. Thomson 1859
2 specimens
2 specimens
3 specimens
1 specimen
1 specimen
Omaliinae indet. MacLeay 1825
9 specimens
1 specimen
Olophrum rotundicolle (Sahlberg 1817)
22 specimens
1 specimen
Olophrum consimile (Gyllenhal 1810)
6 specimens
Eucnecosum sp. Reitter 1909
5 specimens
Eucnecosum brunnescens (Sahlberg 1871)
1 specimen
Pycnoglypta sp. Thomson 1858
3 specimens
Pycnoglypta aptera or Pycnoglypta lurida
1 specimen
126 specimens
33 specimens
Gymnusa sp. Gravenhorst 1806
4 specimens
Mycetoporus sp. Mannerheim 1830
1 specimen
Philonthus sp. Curtis 1829
1 specimen
1 specimen
Insecta - Coleoptera - Scarabaeidae
2 specimens
2 specimens
Insecta - Coleoptera - Carabidae
2 specimens
1 specimen
1 specimen
Bembidion mutatum (Gemminger and Harold 1868)
1 specimen
Trechus crassiscapus Lindroth 1955
3 specimens
Patrobus sp. Dejean 1821
3 specimens
Patrobus stygicus Chaudoir 1872
3 specimens
1 specimen
1 specimen
Diacheila arctica (Gyllenhal 1810)
1 specimen
1 specimen
Insecta - Coleoptera - Dytiscidae
2 specimens
2 specimens
Insecta - Hymenoptera - Formicidae
3 specimens
see common names

Geography
Country:United States State/province:Pennsylvania
Coordinates: 41.6° North, 79.6° West (view map)
Paleocoordinates:
Basis of coordinate:stated in text
Geographic resolution:hand sample
Time
Period: Quaternary Epoch: Pleistocene
Stage: Late Pleistocene 10 m.y. bin: Cenozoic 6
Key time interval: Tarantian
Age range of interval: 0.129 - 0.0117 m.y. ago
Stratigraphy
Formation:Titusville Till
Stratigraphy comments: slightly below sample 1 which is dated as 39070 years old
Lithology and environment
Primary lithology: unlithified peat
Environment:mire/swamp Tectonic setting:non-subsiding area
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Temporal resolution:time-averaged
Collection methods and comments
Collection methods:selective quarrying,sieve
Reason for describing collection:paleoecologic analysis
Collection method comments: 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.
Metadata
Database number:137205
Authorizer:M. Clapham Enterer:J. Karr
Modifier:M. Clapham Research group:paleoentomology
Created:2012-12-12 09:58:02 Last modified:2025-02-22 15:12:02
Access level:the public Released:2012-12-12 09:58:02
Creative Commons license:CC0
Reference information

Primary reference:
43873. 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]