Ana-muri is Aldebaran, the brightest star in Taurus on the other side of the sky, where spring can be imagined as 'dying'. The bull is tumbling down above the head of one of the 4 standing goddesses who are located in the corners of the square. Together these 4 ladies have 8 arms holding the sky roof high. The kneeling gods are 8 in number with 16 supporting arms. 8 + 16 = 24:

Taurus is the 6th of the 12 blackmarked Sun constellations and summer solstice is depicted at Gemini (above the bluemarked perching bird). The kneeling gods at center bottom of the picture affirm this is a cardinal point. Therefore there are 7 constellations rising before the Isis cow with Sirius (below Cancer) will arrive in the east:

Sagittarius	Capricorn	Aquarius	Pisces	Aries	Taurus	Gemini
Cancer	Leo	Virgo	Libra	Scorpio

Cancer is turning his back and this gesture represents the opposite of being born. It means the dark season of the Sun year is beginning. Later Scorpio marks the end of this dark season, measuring 5 constellations - presumably corresponding to the number of fingers ('fire') on the left hand. 'Land' measures 7 constellations, beginning with Sagittarius and ending with Gemini.

The Gemini 'guards' presumably are standing where they are because they guarded what was thought of to be an opening through which the living spirit (manu rere) of Spring Sun ('fire') could leave. The precession moves the sky roof clockwise over time and once this hole to the Milky Way had been at spring equinox, and then the hole could have indicated where Summer Sun was being reborn:

The structure of the Sun zodiac points at an origin about 6,000 years ago, when Orion was at spring equinox, when the new Summer Sun arrived like a fire generated from the arrow formed by its 3 belt stars ('stones'), Tau-toru (cfr at Parehe):

In the Dendera round zodiac the old structure evidently has been reorganized to put Gemini at summer solstice. The hole they are still guarding is no longer used to let Summer Sun in but rather to let Spring Sun out (or Autumn Sun in).

The precissional cycle is ca 26,000 years and a quarter is ca 6,500 years. If we assume the Dendera zodiac was created ca 2,000 years ago, then a quarter turn points at an original state around 6,500 B.C. The backturned Cancer would then have indicated the end of winter (not as now the end of spring) and Leo would have personified summer.

Scorpio (with Ana-mua) would have been the constellation indicating the end of summer, which does not mean there would have been only a short summer, ca 5 * 30 = 150 days long, because early the number of zodiacal figures could have been fewer. Lockyear (The Dawn of Astronomy) quotes Peter Jensen (Die Kosmologie der Babylonier) and suggests 6 original figures:

"... Let us suppose that what happened in the case of Aries and Libra happened with six constellations out of the twelve: in other words, that the original zodiac consisted only of six constellations.

The upper list not only classifies in an unbroken manner the Fish-Man, the Goat-Fish, the Scorpion-Man, and Marduk of the Babyloniana, but we pick up all or nearly all of the ecliptic stars or constellations met with in early Egyptian mythology, Apis, The Tortoise¹,

¹I think I am right about the Tortoise, for I find the following passage in Jensen, p. 65, where he notes the absence of the Crab: ‘Ganz absehend davon, ob dasselbe für unsere Frage von Wichtigkeit werden wird oder nicht, muss ich daran erinnern, das unter den Emblemen, welche die sogenannten 'Deeds of Salè' häufig begleiten, verschiedene Male wie der Scorpion so die Schildkröte abgebildet gefunden wird’.

Min, Serk-t, Chnemu, as represented by appropriate symbols."