Gobiosuchidae

Gobiosuchidae is an extinct family of crocodyliforms that lived during the Late Cretaceous period, approximately 99 to 66 million years ago. This group is notable for its small size, with most species measuring less than 1 meter (3.3 feet) in length, making them among the smallest known crocodyliforms. Fossils of Gobiosuchidae have been discovered primarily in Europe, particularly in Spain, France, and Romania, though some remains have also been found in North Africa.

Gobiosuchids are characterized by their elongated snouts, which resemble those of modern garter snakes or some small crocodilians. Their skulls were relatively narrow and lightly built, suggesting a diet of small prey such as fish, amphibians, or invertebrates. Unlike larger crocodyliforms, gobiosuchids lacked the robust, muscular build typically associated with predatory crocodylians, indicating a more specialized ecological niche.

The taxonomy of Gobiosuchidae remains somewhat debated, with some researchers classifying it as a distinct clade within the Mesoeucrocodylia, while others consider it closely related to other small-bodied crocodyliforms like the Neosuchia. The most well-known genus, *Gobiosuchus*, was first described in the early 20th century based on fossil material from the Maastrichtian stage of the Late Cretaceous. Additional genera, such as *Parabiosuchus* and *Mystriophallus*, have been proposed but are sometimes considered synonyms or less distinct.

The ecological role of gobiosuchids is not fully understood, but their small size and slender build likely allowed them to exploit ecological niches similar to those of modern garter snakes or small crocodiles. Their fossils provide valuable insights into the diversity of crocodyliforms during the Late Cretaceous, highlighting the presence of specialized predators alongside larger, more familiar forms.