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Kolata et al., 1977
A New Species of Bothriocidaris (Echinoidea) from the Cincinnatian Maquoketa Group of Iowa
Kolata, D. R., Strimple, H. L., Levorson, C. O.
| Year | 1977 |
|---|---|
| Publisher place | Riga |
| Journal | Proceedings of the Iowa Academy of Sciences |
| Volume | 84 |
| Number | 4 |
| Pages | 146-149 |
| Type | article in book |
| Language | German |
| Id | 25405 |
Abstract
A new species of echinoid , Bothriocidaris maquoketensis, has been discovered in the Cincinnatian (Upper Ordovician) Fort Atkinson Formation, Maquoketa Group, of northeastern Iowa. The new species is characterized by two widely spaced primary perforate tubercles on opposite sides of the peripodia and by numerous paired interambulacral plates. This occurrence extends the geographic and stratigraphic range of Bothriocidaris in North America.
Last change: 18.10.2022