Skip to main content

We list some recent papers and conference presentations that come out of the Fredonia Microscopy Lab, using the NSF-funded Scanning Electron Microscopy (SEM) - Energy Dispersive Spectrometry (EDS) facility.

  • Research Papers: 

    Bicknell, R.D.C., P.M. Smith, A.A. Klompmaker, & T.A. Hegna. 2024. A new archaeostomatopod from the Pennsylvanian Wea Shale Member, Nebraska. American Museum Novitates, 4028: 1-25.


    Poschmann, M.J., T.A. Hegna, O. Emrich, J. Fischer, R.Hoffmann, T. Schindler & S. Voigt. Accepted. Putative branchiopod and vertebrate eggs from the Remigiusberg Lagerstätte (Pennsylvanian-Permian boundary) of the Saar-Nahe Basin, SW Germany. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen.

  • Conference Presentations (* denotes SUNY Fredonia undergraduate student): 

Bateman, H.* & T.A. Hegna. 2025. Revising Away a Living Fossil: Restudy of Fossil Notostracans from the Permo-Triassic of the USA. Joint Northeastern and North-Central Geological Society of America Sectional Meeting, Erie, PA, March 27-30. [poster]

Carter, C.*, S.L. Ososky, & T.A. Hegna. 2025. Green Graptolites: Glauconitic Replacement of Soft-Tissues in the Fossil Record. Joint Northeastern and North-Central Geological Society of America Sectional Meeting, Erie, PA, March 27-30. [poster]

Echevarria, R.* & T.A. Hegna. 2025. An Ontogenetic Study of a Newly Discovered Population of Cyzicus gynecius (Crustacea: Branchiopoda: Spinicaudata) from Mud Lake (Cassadaga, NY) Using SEM Imagery. Joint Northeastern and North-Central Geological Society of America Sectional Meeting, Erie, PA, March 27-30. [poster]

Lamberton, S.E.*, T.A. Hegna, W. Cao, T. Mittal, J.M. Garber, H. Spiller, & H.W. Starr. 2025. Looking for Critical Minerals in Carboniferous Clays Beneath Coal Deposits in Pennsylvania: A Multipronged Approach. Joint Northeastern and North-Central Geological Society of America Sectional Meeting, Erie, PA, March 27-30. [poster]

Roof, A.E.* & T.A. Hegna. 2025. Establishing a Baseline of Littoral Zooplankton Abundance in the Fredonia Reservoir in Pomfret, NY. Joint Northeastern and North-Central Geological Society of America Sectional Meeting, Erie, PA, March 27-30. [poster]

Salisbury, J.° & T.A. Hegna. 2025. A New Species of Clam Shrimp from a Peculiar Green Chert Facies of the Jurassic Morrison Formation, Wyoming. Joint Northeastern and North-Central Geological Society of America Sectional Meeting, Erie, PA, March 27-30. [poster]
° denotes Fredonia High School student

Bateman, H.* & T.A. Hegna. 2024. Investigation of a unique end-Devonian extinction locality in western New York. 12th North American Paleontological Convention. June 17-21, Ann Arbor, MI. [poster]

Bateman, H.* & T.A. Hegna. 2024. Investigation of a unique end-Devonian extinction locality in western New York. Earth Science Student Forum, Buffalo Museum of Science, Buffalo, NY. [poster]

Echevarria, R.* & T.A. Hegna. 2024. An ontogenetic study of a newly discovered population of Cyzicus gynecius (Crustacea: Branchiopoda: Spinicaudata) from Mud Lake (Cassadaga, NY) using SEM imagery. Earth Science Student Forum, Buffalo Museum of Science, Buffalo, NY. [poster]

Echevarria, R.* & T.A. Hegna. 2024. An ontogenetic study of clam shrimp using SEM imagery. Sigma Xi Student Showcase, virtual. [received 2nd place in the undergraduate division]
Awarded 2nd place for best poster in the undergraduate division

Microscopy Lab

  • Dr. Thomas Hegna 118 Houghton Hall State University of New York at Fredonia Fredonia, NY 14063

Take the next step

Request Info Visit Apply