Family DISCINIDAE Gray, 1840
Introduction
Occurence: Ordovician (?Tremadoc, Arenig) to Recent.
Diagnosis
Holoperipheral growth in conical to subconical branchial valve. Musculature consisting of two major pairs, anterior and posterior adductors and several pairs of oblique muscles. Oblique muscles are only adequately known from Recent species which also possess spirolophe or szhiziolophe, and have well developed marginal setae. From Moore (1965).
History of changes
Note that this list may be incomplete for dates prior to September 2013.
| Published | As part of group | Action Date | Action Type | Compiler(s) |
|---|---|---|---|---|
| 12-Feb-2010 | (import) |