Lisowicia may have evolved its large size in response to the absence of sauropodomorphs in its ecosystem in southern Poland, or alternatively may have acted as a direct competitor to them.

Instead, it had a pair of short and thick triangular projections from the maxillary jaw bone behind the beak called caniniform processes, similar to those of the related Ischigualastia and other stahleckeriids.

The bones of the pelvis and hind limb are very robust compared to other dicynodonts due to the massive size of the animal (e.g. the largest known femur is 80 centimetres (31 in) long), but are otherwise similar to those of other stahleckeriids.

The musculature of the forelimb has also been rearranged to facilitate its upright posture and gait, now functioning to draw the limb forwards and backwards and losing the ability to rotate the upper arm as it would in a sprawling stride.

[6][7] Remains of Lisowicia have been discovered in the Lipie Śląskie clay pit in Lisowice, a village in southern Poland near the town of Lubliniec, Silesia.

The age of the Lipie Śląskie clay pit has been difficult to determine, with different biostratigraphic methods of dating providing varying results.

However, palaeontologists Grzegorz Racki and Spencer Lucas have claimed the site to be older and dated to the middle Norian stage based on biostratigraphy of large vertebrates, including Lisowicia.

[8] A sample of detrital zircons from the Lipie Śląskie clay pit was radiometrically dated to determine the maximum age of deposition for the fossil beds.

[9] Remains of Lisowicia were first discovered in 2006 by palaeontologists Jerzy Dzik, Tomasz Sulej and Grzegorz Niedźwiedzki, who initially mistook them for the bones of a sauropodomorph dinosaur due to their massive size.

In particular, phylogenetic analyses by Sulej & Niedźwiedzki (2019) using two separate datasets both found Lisowicia to be closely related to the well-known North American genus Placerias in the subfamily Placeriinae, together with the Moroccan Moghreberia.

Unlike the cladistic tree above, he proposed that most stahleckeriines did not share close common ancestry with placeriines but instead emerged from a distinct lineage of Middle Triassic "kannemeyeriids" that migrated into Gondwana descending from the Laurasian Rhadiodromus and Parakannemeyeria.

In fact, dicynodonts were consistently larger than sauropodomorphs during the Carnian stage, and both achieved similar gigantic sizes in the Norian to the Rhaetian with Lisowicia.

[1] The evolution of gigantism in dicynodonts was a gradual process, occurring over approximately 20 million years, and acquired major restructuring the musculo-skeletal system to achieve the size and posture of Lisowicia.

[1] Lisowicia was a herbivore, like most other dicynodonts, using its relatively long beak to crop and chew, although its large size implies it was feeding on higher levels of vegetation than was typical for the group.

This suggestion was based on the orientation of the orbits and the low position of the occipital condyles (where the skull joins the neck), interpreted as indicating that its head was habitually held tilted down towards the ground.

[5] Histological studies from the limb bones of Lisowicia showed features characteristic of a rapid growth rate as juveniles, similar to other large dicynodonts.

LAGs may have been truly absent, or were possibly erased by extensive remodelling of the bone into adulthood, both of which would support permanently rapid growth in Lisowicia, similar to mammals and some dinosaurs.

The wet, freshwater environment supported temnospondyl amphibians (a capitosaur and smaller plagiosaurid) as well as an abundance of fish including lungfish, coelacanths and hybodontid sharks.

[8][16] The environment at Lipie Śląskie was wet and swampy, comparable to the modern-day everglades,[14] with slow-moving meandering rivers and oxbow lakes, surrounded by abundant vegetation that included Cheirolepidiaceae conifers and ginkgoales, seed ferns such as Lepidopteris and the cycads Androstrobus and Beania.

By contrast, neighbouring environments may have been dry and arid, suggested by remains of the possibly xerophytic conifer Hirmeriella and charcoal fragments from fires being transported by rivers to the locality.

[2][18][19] The absence of any large sauropodomorph herbivores is curious, as they are present in many other Late Triassic ecosystems, including in nearby localities in Europe, such as Plateosaurus in Germany.