Genus: Polonosuchus BRUSATTE, BUTLER, SULEJ & NIEDZWIEDZKI, 2009
Etymology: Latin, Polonia, Poland, the country in which the holotype was found, and Greek, souchus or suchus, Greek term for the Egyptian crocodil god Sobek.

Species: silesiacus (SULEJ, 2005) BRUSATTE, BUTLER, SULEJ & NIEDZWIEDZKI, 2009
= Teratosaurus silesiacus SULEJ, 2005 (= Teratosaurus suevicus per LUCAS, SPILEMANN & HUNT, 2007)
Etymology: In reference to the Opole Silesia region, Poland, from which the specimen comes from.

Holotype: ZPAL AB III 563

Locality: Krasiejow, Opole Silesia, Silesia Province, Poland.

Horizon: Probably Drawno beds coeval to the Lehrberg Beds of Germany.

Biostratigraphy:

Age: Late Carnian Stage, Lower Late Triassic Epoch, Late Triassic.

Material: Right and left maxilla, premaxillae, nasals, prefrontals, palatines, quadrates, and fragments of dentary, left jugal, right lacrimal, quadratojugal, squamosum, pterygoid, surangular adn articular, fragment of atlas articulated with axis, and 3rd cervical vertebrae, 12 articulated caudal vertebrae, 5 caudal scutes, and pieces of cervical rib.

Referred material:

Note: From probable regurgitalite attributed to Polonosuchus QVARNSTRÖM, WERNSTRÖM, WAWRZYNIAK, BARBACKA, PACYNA, GORECKI, ZIAJA, JARZNKA, OWOCKI, SULEJ, MARYNOWSKI, PIENKOWSKI, SHLBERG & NIEDZWIEDZKI, 2024

ZPAL AbIII/3417a, b: Semitransparent coporlite with plant cuticles, tooth-bearing fragment from a temnospondyl skull, a smaller fragment of a tooth-baring fragment of a temnospondyl skull,a vertebrae of a tetrapod, triangular bone with large canals (perhaps from a temnospondyl), small poorly preserved vertebrae, elongated bone with large canals (likely from a temnospondyl), small fish bone, ganoid scale of an actinopterygian fish.

Note: From probable regurgitalite attributed to Polonosuchus.