1763, Hipólito San Joseph Giral del Pino, A dictionary, Spanish and English, and English and Spanish, entry on "C":
[…] a kind of comma under it thus (ç); this is called in Spanish cedilla, or C caudata, which letter being useless, and having the same sound as the Z, has been taken off, from the Spanish alphabet,
2003, Albert Derolez, David Ganz, The Palaeography of Gothic Manuscript Books (Cambridge University Press):
page 115: z normally takes the 'Iberian' shape of figure 3 […]. It can be replaced by c caudata (23, pl. 64).
page 188: Except for e caudata (in fact a form of ae-ligature) and c caudata (ç), Latin manuscripts do not normally use any other letter signs than those of the modern Latin alphabet.
2018, A Companion to the Poema de mio Cid, page 48:
In the c caudata, the cedilla is placed quite below the baseline, as is usual in the semihybrida, but it is connected to the c, like in the (semi)textualis. The round allograph of s (used in final position) does not have the beta or sigma shapes of s[…] found in the letra de albalaes.
2022, Philip Knox, The Romance of the Rose and the Making of Fourteenth-Century English Literature, page 227:
This scribe uses letter forms (like the c caudata [ç] for z) that are consistent with the cursive book hand used in Italy until the end of the fourteenth century known as cancelleresca.
