Polygnathidae

Polygnathidae
10–11. Polygnathus sp.
(see caption)
10–14. Conodonts from the basal 20 cm of the Loyalhanna Limestone Member of the Mauch Chunk Formation, Keystone quarry, Pa. (93RS–79a), and Westernport, Md. (93RS–67). Note the highly abraded and reworked aeolian forms.
10. Polygnathus sp., Pa element, upper view, reworked Late Devonian to Early Mississippian morphotype, 93RS–79a, X140.
11. Polygnathus sp., Pa element, upper view, reworked Late Devonian to Early Mississippian morphotype, 93RS–67, X140.
Scientific classification
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Polygnathidae

Genera

Polygnathidae is an extinct family of conodonts.

  1. ^ Classification and stratigraphic use of the conodonts. RS Bassler - Geological Society of America Bulletin, 1925