|Lower jaws of L. thaumastos|
Sereno and Larsson, 2009
The name means "pancake crocodile" from the Greek λαγανον, laganon ("pancake") and σοῦχος, souchos ("crocodile") in reference to the shallow depth of the skull, which is characteristic of all stomatosuchids. It has been nicknamed "PancakeCroc" by Paul Sereno and Hans Larsson, who first described the genus in a monograph published in ZooKeys in 2009 along with other Saharan crocodyliformes such as Anatosuchus and Kaprosuchus.
According to Sereno, L. thaumastos was an approximately 6 m (20 ft) long, squat fish-eater with a 1 m (3.3 ft) flat head. It would have stayed motionless for hours, waiting for prey to swim into its open jaws with spike-shaped teeth.
- Sereno, Paul; Larsson, Hans (2009-11-19). "Cretaceous Crocodyliforms from the Sahara". ZooKeys. 28: 1–143. doi:10.3897/zookeys.28.325. ISSN 1313-2970.
- "†Laganosuchus Sereno and Larsson 2009". Paleobiology Database. Fossilworks. Retrieved 20 September 2016.
- Schmid, Randolph E. (19 November 2009). "3 new ancient crocodile species fossils found". The Associated Press.
- Sereno, P. C.; Dutheil, D. B.; Iarochene, M.; Larsson, H. C. E.; Lyon, G. H.; Magwene, P. M.; Sidor, C. A.; Varricchio, D. J.; Wilson, J. A. (1996). "Predatory dinosaurs from the Sahara and Late Cretaceous faunal differentiation". Science. 272 (5264): 986–991. doi:10.1126/science.272.5264.986. PMID 8662584.
- Devlin, Hannah (20 November 2009). "Meet Boar, Rat and Pancake: the ancient, giant crocodiles found in Sahara". Times Online.