Note 11 — Chapter XII · (continued 2)
Reading edition
The Brachiopoda may be thus tabulated:—
Family.
I. Lingulidæ, containing Lingula and other fossil genera. II. Discinidæ, containing Siphonolreta and Discina. III. Craniadæ, containing Crania. IV. Productidæ, containing Chonetes and Productus, fossil. V. Orthidæ, containing Calceola, Davidsonia, Strophomena, and Orthis. VI. Rhynconellidæ, containing Atrypa, Pentamerus, and Rhynconella. VII. Spiriferidæ, containing Uncites, Retzia, Athyris, and Spirifera. VIII. Terebratulidæ, containing Thecidium, Agriope, Terebratella, and Terebratula.