Vol. 63 No. 1 (2026)

HIGHLIGHTS

- LATE ORDOVICIAN SCOLECODONTS FROM THE LA POLA AND DON BRAULIO FORMATIONS, VILLICUM RANGE, ARGENTINE PRECORDILLERA

Two assemblages of scolecodonts from the Upper Ordovician La Pola and Don Braulio formations exhibit a diversity linked to geological events.     

- NOVEL INFORMATION ON THE BRAINCASE OF MEGARAPTOR NAMUNHUAIQUII (DINOSAURIA: THEROPODA) USING X-RAY TOMOGRAPHY: PNEUMATICITY, PALEONEUROLOGY, AND THEIR PALEOBIOLOGICAL IMPLICATIONS     

The neuroanatomy suggests that Megaraptor was an agile predator with hearing and balance capabilities matching the range of coeval predatory coelurosaurs.

- REASSESSING THE HYPERDIVERSE DINOMYID (RODENTIA, CAVIOMORPHA) ASSEMBLAGE FROM THE LATE MIOCENE ITUZAINGÓ FORMATION (ENTRE RÍOS PROVINCE, ARGENTINA) 

A reassessment of the dinomyid rodent assemblage recorded in the Late Miocene Ituzaingó Formation (Argentina), the most diverse of South America.