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Pseudobeaconia, a perleidiform fish from the Triassic Santa Clara Formation, Argentina

Published in Breviora, in 1973, in volume 398, pages 1-24

Created: 2009-12-27, modified: 2021-04-05

The evolution of mammalian from reptilian dentitions

Published in Breviora, in 1973, in volume 399, pages 1-18

Created: 2009-12-27, modified: 2021-04-05

The Carolina salt marsh snake: a distinct form of Natrix sipedon

Published in Breviora, in 1973, in volume 400, pages 1-13

Created: 2009-12-27, modified: 2021-04-05

The Chanares (Argentina) Triassic reptile fauna. XVIII. Probelesodon minor, a new species of carnivorous cynodont; family Probainognathidae nov

Published in Breviora, in 1973, in volume 401, pages 1-4

Created: 2009-12-27, modified: 2021-04-05

Speciation in the genus Ochthoeca (Aves: Tyrannidae)

Published in Breviora, in 1973, in volume 402, pages 1-13

Created: 2009-12-27, modified: 2021-04-05

A new late Paleocene Phenacodont (Mammalia: Condylarthra) from western Colorado

Published in Breviora, in 1973, in volume 403, pages 1-7

Created: 2009-12-27, modified: 2021-04-05

New studies on a montane lizard of Jamaica, Anolis reconditus

Published in Breviora, in 1973, in volume 404, pages 1-23

Created: 2009-12-27, modified: 2021-04-05

A fossil trionychid turtle from South America

Published in Breviora, in 1973, in volume 405, pages 1-10

Created: 2009-12-27, modified: 2021-04-05

Two new lygosomine skinks from New Guinea with comments on the loss of the external ear in lygosomines and observations on previously described species

Published in Breviora, in 1973, in volume 406, pages 1-25

Created: 2009-12-27, modified: 2021-04-05

The Chanares (Argentina) Triassic reptile fauna. XIX. Postcranial materials of the cynodonts Probelesodon and Probainognathus

Published in Breviora, in 1973, in volume 407, pages 1-26

Created: 2009-12-27, modified: 2021-04-05

A taxonomic comparison of the American Upogebia (Decapoda, Thalassinidea), including two new species from the Caribbean

Published in Breviora, in 1973, in volume 408, pages 1-23

Created: 2009-12-27, modified: 2021-04-05

The classification of the Cotingidae (Aves)

Published in Breviora, in 1973, in volume 409, pages 1-27

Created: 2009-12-27, modified: 2021-04-05

The color pattern of Sonora michoacanensis (Duges) (Serpentes, Colubridae) and its bearing on the origin of the species

Published in Breviora, in 1973, in volume 410, pages 1-18

Created: 2009-12-27, modified: 2011-06-21

The mandibular dentition of Plagiomene (Dermoptera, Plagiomenidae)

Published in Breviora, in 1973, in volume 411, pages 1-17

Created: 2009-12-27, modified: 2011-06-21

Mylostoma variabile Newberry, an Upper Devonian durophagous brachythoracid arthrodire, with notes on related taxa

Published in Breviora, in 1973, in volume 412, pages 1-12

Created: 2009-12-27, modified: 2023-11-22

The Chanares (Argentina) Triassic reptile fauna. XX. Summary

Published in Breviora, in 1973, in volume 413, pages 1-20

Created: 2009-12-27, modified: 2011-06-21

Ecology, selection and systematics

Published in Breviora, in 1973, in volume 414, pages 1-21

Created: 2009-12-27, modified: 2011-06-21

The evolution of behavior and the role of behavior in evolution

Published in Breviora, in 1973, in volume 415, pages 1-29

Created: 2023-11-22, modified: 2023-11-22

Museums and biological laboratories

Published in Breviora, in 1973, in volume 416, pages 1-7

Created: 2009-12-27, modified: 2011-06-21

A new species of Cyrtodactylus (Geckonidae) from New Guinea with a key to species from the island

Published in Breviora, in 1973, in volume 417, pages 1-7

Created: 2009-12-27, modified: 2011-06-21

Morphogenesis, vascularization and phylogeny in angiosperms

Published in Breviora, in 1973, in volume 418, pages 1-19

Created: 2009-12-27, modified: 2011-06-21

Protoptychus, a hystricomorphous rodent from the late Eocene of North America

Published in Breviora, in 1973, in volume 419, pages 1-14

Created: 2009-12-27, modified: 2011-06-21