Falciferous

[…] (oblong scale), abundant throughout the south and especially in the Gironde region; Pulvinaria vitis (red scale) and Pseudococcus (Dactylopius) vitis (white scale) foung throughout the Mediterranean basin; Eulecanium (Lecanium) corni, found only in the north; Aulacaspis (Diaspis) pentagona; and the falciferous scale [Rhizoecus falcifer, Künek.] which lives on the roots.

A[stragalus] falciferous Hult.

Internal morphology: Dental lamellae short, slightly recurved and close to the valve sides. Teeth broad with crenulation or notch denticle developed. Cardinal plates broad, ventrally convex, merging in inner socket ridges. Crural bases have long dorsal and short ventral ends. Crura broad, falciferous. Low dorsal euseptum developed (Fig. 2).

The stinted growth of the stationary Conchifera forms a striking contrast with the size and number of the Cephalopoda interred with them in the same bed; in fact the dawning existence of these Conchifera appears to have been a struggle for life, whilst the conditions of the closing scene of the Belemnites, Nautili, and falciferous Ammonites, were favourable to their continuance in time, but abruptly brought to a termination by some great physical change which took place about the commencement of the deposition of the oolitic formations.

The third group is continued into the sands which cap the upper lias, and into strata a little above them, which constitute the lower part of the inferior oolite of Dundry. Even in the Stonesfield slate we find falciferous ammonites.

More or less falciferous — that is, united to t’ shaft by an arched web-like expansion. Separate or webbed together umbrella-like.

This form of suture is seen even in the falciferous Ammonites of the Cretaceous, which can scarcely perhaps, be genetically connected with […]