p. 1

Chaetetes petropolitanus, Pander (1830)
4 p 442 Ill. Geol. Rep. 3 p 304 p 2 fig 8 ab.

Chaetetes lycoperdon, Say -
Hall, Pal. N.Y. Vol. 1, p. 64, pl. 23, figs.
1 & 2 & pl 24 fig 1. & Vol 2 p 40 pl 17 fig 1. & Fos. & Wh. Geol. of L. Sup p 207 pl 25 fig 1.
- Favosites lycoperdon, Say. F.
lycopodites, vanuxem, N.Y. Geol. Report p. 46 fig.
3. Emmons, N.Y. Geol. Report, p. 389 fig. 3.
Calamopora fibrosa? & Favosite fibrosa?
Goldfus.

Coral polymorphous, composed of
closely aggregated tubes or columns,
which diverge gradually from a broad
base forming hemispherical masses, or
from an imaginary axis producing
conical or ramose forms; tubes minute
fibre=like, traversed by [diaphragms?]; no
connecting pores; increase of the coral by
subdivisions of the parent tube or by the
successive addition of lateral or marginal
tubes; exterior envelope submembranous.
- Appears in hemispheric, conical, nearly
globular, and ramose & irregular massive forms.)