A new Maastrichtian hyposaurine dyrosaurid (Crocodylomorpha) from Namibe province, Angola

This dataset contains the digitized treatments in Plazi based on the original journal article Maréchal, Arthur, Rotatori, Filippo Maria, Merella, Marco, Puértolas-Pascual, Eduardo, Sequero, Cristina, Pereira, Ricardo, Nsungani, Pedro, Mateus, Octávio (2025): A new Maastrichtian hyposaurine dyrosaurid (Crocodylomorpha) from Namibe province, Angola. Zoological Journal of the Linnean Society 204 (4): 1-19, DOI: 10.1093/zoolinnean/zlaf092, URL: doi.org/10.1093/zoolinnean/zlaf092 ABSTRACT Dyrosauridae are one of the few clades of large marine vertebrates that survived the Cretaceous/Palaeogene (K–Pg) extinction event.

The early diversification of this clade, dated to the Cretaceous, is still poorly understood. We describe a new specimen of Dyrosauridae from the Late Cretaceous of Bentiaba, Angola, represented by a posterior portion of the skull, a left ectopterygoid fragment, and a tooth. Comparative morphological analysis reveals a unique combination of characters distinguishing it from known dyrosaurid taxa but due to the fragmentary nature of the specimen and the absence of key diagnostic features, we assign it to Hyposaurinae indet..