Sunday, January 9, 2011

Brachiopods of the Waldron Shale

Rhynchotreta cuneata
This post includes pictures of 19 different species of brachiopods found in the Waldron Shale of Clark County, Indiana.  They existed in the Silurian Period.  The Atrypa or Stegerhynchus are the most common found.

Eospirifer eudora

Whitfieldella nitida

Eospirifer radiatus

Laptaena waldronensis

Meristina maria

Unicinulus stricklandi

Stegerhynchus sp.

Parmorthis waldronensis

Rhipidomella hybrida
Atrypa reticularis

Homoeospira evax
Uncinulus saffordi
Fardenia subplana
"Orthis" subnodosa

Dictyonella reticulata

Spirifer (Delthyris) crispus simplex
Protomegastrophia profunda
Sieberella roemeri?