I usually call them zodiac symbols or zodiac-symbol section or zodiac roundels. Since they start with Pisces and only include 10 of the 12 traditional symbols, I'm a little reluctant to call it a "zodiac".
But it certainly has many commonalities with a zodiac. The images are traditional, even if a bit inventive, the sequence is traditional, and the surrounding wheels are mapped into circa 30 figures, which fits with the traditional division of thirty degrees per constellation. Even some of the nymphly subject matter (cycles of life) is consistent with the astrological houses (not to be confused with lunar mansions).
The images are also very consistent in subject matter with radio-carbon dating for circa early 15th century. Lizard scorpios and crossbowmen were only chosen to represent Scorpius and Sagittarius during a short window of time in a minority of manuscripts (note that lizard-Scorpios are distinct from the English dragon-Scorpios). This in itself creates a commonality with other manuscripts with zodiac sequences, especially when combined with the romantic-couples version of Gemini.
But it certainly has many commonalities with a zodiac. The images are traditional, even if a bit inventive, the sequence is traditional, and the surrounding wheels are mapped into circa 30 figures, which fits with the traditional division of thirty degrees per constellation. Even some of the nymphly subject matter (cycles of life) is consistent with the astrological houses (not to be confused with lunar mansions).
The images are also very consistent in subject matter with radio-carbon dating for circa early 15th century. Lizard scorpios and crossbowmen were only chosen to represent Scorpius and Sagittarius during a short window of time in a minority of manuscripts (note that lizard-Scorpios are distinct from the English dragon-Scorpios). This in itself creates a commonality with other manuscripts with zodiac sequences, especially when combined with the romantic-couples version of Gemini.