While most fossil genera and species of angel shark are represented solely by isolated teeth, Pseudorhina is relatively well known from articulated individuals.

[3] Pseudorhina differs from living Squatina in numerous morphological characters, including "antero-posterior length of the first basiventral is equal to that of the second, the postorbital process is directed laterally, the orbital process is nearly vertical, and the anterior spool of the first vertebra centrum is not reduced" with the teeth of Pseudorhina having "broader triangular cusps and very oblique and short heels, with a broad apron united to the basal labial margin of the crown".

[5] Pseudorhina frequens is known from isolated teeth found in the Late Jurassic Kimmeridge Clay of England.

[4] The fully body species P. acanthoderma and P. alifera are known from the Late Jurassic Solnhofen Plattenkalk limestones of southern Germany.

[4] P. acanthoderma is known from the late Kimmeridgian in layers which produce ammonites such as Hybonoticeras beckeri and Lithacoceras ulmense.