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Australo-Papuan treecreepers (Passeriformes: Climacteridae) and a new species of sittella (Neosittidae: Daphoenositta) from the Miocene of Australia
PE 19.1.1A

Jacqueline M. T. Nguyen

Riparian and valley-margin hardwood species of pre-colonial Piedmont forests: A preliminary study of subfossil leaves from White Clay Creek, southeastern Pennsylvania, USA
PE 19.1.2A

Sara J. Elliott, Christen L. Grettenberger, Michael P. Donovan, Peter Wilf, Robert C. Walter, and Dorothy J. Merritts

Morphological variations in Cycloclypeus carpenteri: Multiple embryos and multiple equatorial layers
PE 19.1.3A

Antonino Briguglio, Shunichi Kinoshita, Erik Wolfgring, and Johann Hohenegger

Late Devonian and Early Carboniferous chondrichthyans from the Fairfield Group, Canning Basin, Western Australia
PE 19.1.4A

Brett Roelofs, Milo Barham, Arthur J. Mory, and Kate Trinajstics

Positive allometry for exaggerated structures in the ceratopsian dinosaur Protoceratops andrewsi supports socio-sexual signaling
PE 19.1.5A

David W. E. Hone, Dylan Wood, and Robert J. Knell

What nymphal morphology can tell us about parental investment – a group of cockroach hatchlings in Baltic Amber documented by a multi-method approach 
PE 19.1.6A

Marie K. Hörnig, Andy Sombke, Carolin Haug, Steffen Harzsch, and Joachim T. Haug

First bird footprints from the lower Miocene Lerín Formation, Ebro Basin, Spain
PE 19.1.7A

Ignacio Díaz-Martínez, Oier Suarez-Hernando, Blanca María Martínez-García, Juan Cruz Larrasoaña, and Xabier Murelaga

A new species of Echinolittorina Habe, 1956 (Gastropoda: Littorinidae) from the Quaternary of Chile
PE 19.1.8A

Juan Francisco Araya and David G. Reid

New data on Eulipotyphla (Insectivora, Mammalia) from the Late Miocene to the Middle Pleistocene of Ukraine
PE 19.1.9A

Barbara Rzebik-Kowalska and Leonid I. Rekovets

The diplacanthid fishes (Acanthodii, Diplacanthiformes, Diplacanthidae) from the Middle Devonian of Scotland
PE 19.1.10A

Carole Burrow, Jan den Blaauwen, Michael Newman, and Robert Davidson

Fossil clitellate annelid cocoons and their microbiological inclusions from the Eocene of Seymour Island, Antarctica
PE 19.1.11A

Stephen McLoughlin, Benjamin Bomfleur, Thomas Mörs, and Marcelo Reguero

The oldest species of the relic extant genus Mesochria from Eocene Fushun amber of China (Diptera: Anisopodidae: Mycetobiinae
PE 19.1.12A

Ryszard Szadziewski, Jacek Szwedo, Elżbieta Sontag, and Bo Wang


Technical Articles

Using X-ray computed tomography analysis tools to compare the skeletal element morphology of fossil and modern frog (Anura) species
PE 19.1.1T

Thalassa Matthews and Anton du Plessis


Fossil Calibration Articles

How to date a dragonfly: Fossil calibrations for odonates
PE 19.1.1FC

Manpreet Kaur Kohli, Jessica L. Ware, and Günter Bechly