Delair (1959) believed the granicones to be from a thyreophoran, and Galton (1986) referred them to Echinodon (now recognized as a heterodontosaurid). They have been recently reidentified as solemydid turtle limb and tail(? Though most often viewed as a lizard or juvenile megalosauroid or carnosaur last century, Nuthetes was reidentified as a juvenile dromaeosaurid by Milner (1999, 2002). Owen later (1879) identified Nuthetes as a crocodilian and referred additional teeth to the taxon, as well as dermal armor called granicones.
She distinguishes it from "velociraptorines" by the absence of apically inclined serrations, despite the fact she earlier describes and illustrates these in the taxon.
Although Milner says dromaeosaurines are distinguished from Nuthetes by their low DSDI and that Nuthetes compares most closely to "velociraptorines", she never actually assigns it to the Velociraptorinae.
Bonde (2012) thought three larger teeth (including BMNH R 1588) were probably congeneric with Dromaeosauroides, while Nuthetes itself could be a more generalized neotheropod.
Milner assigns Nuthetes to the Dromaeosauridae based solely on the high DSDI, though she also compares the Mackelian groove and posterior extent of tooth tips to Deinonychus.
Swinton (1934) and Chakravarti (1935) referred it to the Megalosauridae.
It was even synonymized with Megalosaurus itself by Romer (1956).
Within coelurosaurs, these include basal tyrannosauroids (Guanlong, Dilong, Eotyrannus) and Richardoestesia.
That Richardoestesia is not discussed by Milner is confusing, as she lists it in her table of DSDI values as having a range almost identical to Nuthetes (1.06-1.53).
Richardoestesia gilmorei has a Mackelian groove that is shallow like dromaeosaurids and an upper row of circular foramina. Serration morphology is similar, with blunt rounded tips slightly hooked apically.