Watch List notes:

Seljuqs, Great Seljuq. Jalal al-Dawlah Malikshah I. AH 465-485 / AD 1072-1092. AV Dinar (23mm, 4.82 g, 7h). Naysabur mint. Dated AH 470 (AD 1077/8). SNAT XIVa, 639; Album 1674. Near VF.

While the ornament above the obverse field is described in the Tübingen Sylloge volume as 'a monogram of the letters mim, lam-alif, ha and dal, this explanation seems unnecessarily elaborate and the ornament itself looks very much like a bucranium.