Vol. 58 No. 6 (2021)

MICROBIAL LANDSCAPES IN THE PERMIAN GONDWANA: MICROBIALITE BEDS OF THE TERESINA FORMATION AT THE NORTHEAST BORDER OF THE PARANÁ BASIN, BRAZIL

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ANATOMICAL DETAILS OF AETOSAURIA (ARCHOSAURIA:PSEUDOSUCHIA) AS REVEALED BY AN ARTICULATED POSTERIOR SKELETON FROM THE UPPER TRIASSIC ISCHIGUALASTO FORMATION, SAN JUAN PROVINCE, ARGENTINA

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CLADOSICTIS PATAGONICA (METATHERIA, SPARASSODONTA) FROM THE COLLÓN CURA FORMATION (MIDDLE MIOCENE), RÍO NEGRO, ARGENTINA

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EARLY MAMMALIAN HISTORY GOES PUBLIC REVIEW OF "BEASTS BEFORE US: THE UNTOLD STORY OF MAMMAL ORIGINS AND EVOLUTION. Elsa Panciroli. 2021. 320 pp. Bloomsbury Sigma. ISBN 978-1-472983-82-4. Illustrations by April Neander.