6
1
April
83
96
DOWNIE, C., SARJEANT, W. A. S. 1963. On the interpretation and status of some hystrichosphere genera. Palaeontology, 6, 1, 83–96.
Charles Downie and W. A. S. Sarjeant The taxonomic status of the genera Micrhystridium, Baltisphaeridium, Vevyhachium, Multiplicisphaeridium, Leiosphaeridia, Leiosphaeridium, Protoleiosphaeridium, and Archaeohystrichosphaeridium is examined. The generic names Multiplicisphaeridium, Leiosphaeridium, and Protoleiosphaeridium are rejected: the genera Micrhystridium, Baltisphaeridium, Leiosphaeridia, and Veryhachium are redefined: and lists are given of the species now considered to belong to these genera, the generic attribution of 140 species being changed. The Palaeontological Association (Free Access)