[1][2] Parasuchus hislopi is one of several species belonging to a basal grade of phytosaurs, typified by the genus Paleorhinus.

Parasuchus hislopi, despite being described earlier than Paleorhinus, was considered an undiagnostic chimera until new neotype fossils were described in the late 1970s.

However, Lydekker's description was based on a chimeric syntype, combining fossils from multiple unrelated reptiles: a rhynchosaurian basicranium mixed with the partial snout of a phytosaur, scutes and some teeth.

He argued that the rhynchosaur basicranium qualifies as neither the holotype of P. hislopi, nor the lectotype of Paradapedon huxleyi.

[1] To avoid additional confusion, the nondiagnostic holotype of P. hislopi was replaced by a neotype (ISI R 42) with approval from the ICZN (Opinion 2045) following the application of Chatterjee (2001).

[4] The partial premaxillary rostrum (snout) originally described by Lydekker, GSI H 20/11, was chosen as the lectotype of Parasuchus hislopi by Sankar Chatterjee.

A couple of miles north of that locality, near the Venkatapur village, two more excellently preserved skulls were found.

[1] Finally, a skull recovered from the Tikisuchus holotype site of the Tiki Formation (Gondwana Group),[6] about 4 miles west of Tiki village of Shadol District, Madhya Pradesh, is missing only the end of the snout and the squamosal.

[2] Some studies, like Chatterjee (1978) and Lucas et al. (2007), synonymized Parasuchus with another basal phytosaur, Paleorhinus.