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Dr. John P. Hart

Curator Emeritus
john.hart@nysed.gov
518-474-3895

My research has focused primarily on the histories of maize, bean, and squash in New York and the greater Northeast and the interactions of human populations with these crops. Through collaborations with numerous colleagues both at the Museum and other institutions, this research resulted in new understandings of these histories and interactions. A primary focus has been on charred cooking residues adhering to the interior surfaces of pottery sherds in the collections of the Museum. These residues contain microfossil evidence (phytoliths, starch, lipids) of the plants cooked in the pots. In addition the residues can be directly radiocarbon dated through accelerator mass spectrometry. These methods and techniques have provided new evidence that is radically altering our understandings of the histories of agriculture in New York State. Theory building to develop understandings of these new histories is another focus. This research has broad implications for Native American history in New York and the greater Northeast.

Most recently I have been working with colleagues on Social Network Analyses (SNA) of northern Iroquoian sites dating from A.D. 1350 to 1650. SNA is a formal graphing method, which in archaeology is used to identify relationships between sites based on similarities of artifact assemblages. This research is helping to build new understandings of interactions between village populations and how these interactions changed through time during the last centuries before and then after European involvements.

Publications

2025

S.R. Westrop, L. Amati, E.E. Vargas-Parra 2025, Upper Ordovician (Sandbian–Katian) species of the trilobite Calyptaulax Cooper 1930 (Pterygometopidae) from the central United States and Canada, Australasian Palaeontological Memoirs 57, 221–250.
R.D.C. Bicknell, P.M. Smith, L. Amati, M.J. Hopkins 2025, Abnormal trilobites from the Silurian and Devonian of Europe, Acta Palaeontologica Polonica 70, 205–212. 10.4202/app.01229.2024
R.D.C. Bicknell, A. Goodman, L. Laibl, L. Amati 2025, Novel evidence for the youngest Naraoia and a reassessment of naraoiid paleobiogeography, Fossil Record 28, 115–124. 10.3897/fr.28.150343

2022

R. Bicknell, L. Amati 2022, On the morphospace of eurypterine sea scorpions, Earth and Environmental Science Transactions of the Royal Society of Edinburgh 113, 1-6. 10.1017/S175569102100030X

2019

Russell Bicknell, L. Amati, Javier andez 2019, New insights into the evolution of lateral compound eyes in Palaeozoic horseshoe crabs, Zoological Journal of the Linnean Society 187, 1061–1077. 10.1093/zoolinnean/zlz065
E. Landing, Osman Hersi, L. Amati, Stephen Westrop, David Franzi 2019, Early Paleozoic rifting and reactivation of a passive-margin rift: Insights from detrital zircon provenance signatures of the Potsdam Group, Ottawa graben: Comment, GSA Bulletin 131, 695-698. 10.1130/B35104.1

2016

Robert Swisher, Stephen Westrop, L. Amati 2016, Systematics and paleobiogeographic significance of the Upper Ordovician pterygometopine trilobite Achatella Delo,1935, Journal of Paleontology 90, 59-77. 10.1017/jpa.2015.71

2009

E. Landing, L. Amati, D. Franzi 2009, Epeirogenic Transgression Near a Triple Junction: The Oldest (latest early-middle Cambrian) Marine Onlap of Cratonic New York and Quebec, Geological Magazine 146, 552-566. 10.1017/S0016756809006013