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Two flat pieces of rock stone with impressions of [entrochi?] and other marine bodies petrified

Object Status:

Unlocated

Accession Date:

February 1776

Primary Source Reference:

Du Simitière Memorandum Books, Library of Congress, fol. 15r

Additional Source Text:

"From near the forks of the Susquehannah in the county of Northumberland in this province [Pennsylvania]."

Notes:

Entrochites are fossil joints of a crinoid stem. Crinoids are one of the numerous animals that make up the class Crinoidea, the feather stars or sea lilies.