Acta Palaeontologica Polonica

Acta Palaeontologica Polonica APP is an international quarterly journal publishing papers of general interest from all areas of paleontology.

EDITORS' CHOICEToday, on Zofia Kielan-Jaworowska's (1925-2015) birthday we publish a redescription of Gobiconodon zofiae...
25/04/2026

EDITORS' CHOICE
Today, on Zofia Kielan-Jaworowska's (1925-2015) birthday we publish a redescription of Gobiconodon zofiae, a gobicodontid mammal named in her honour. Her contribution to mammalian research cannot be overestimated. She is sorely missed!

We provide a detailed description of the dental morphology of Gobiconodon zofiae based on the holotype and clarify its diagnostic features in comparison with other species in the genus. We also report a new species, Gobiconodon gongzhulingensis sp. nov., from the lower Upper Cretaceous Quantou Forma...

EDITOR'S CHOICE
06/04/2026

EDITOR'S CHOICE

Olivier Lambert, John R. Stewart, Stephen Louwye, Luc De Coninck, Mark Bosselaers, Lucile Crété, Stijn Goolaerts, Christophe Mallet, and Frederik H. Mollen

EDITOR'S CHOICE
06/04/2026

EDITOR'S CHOICE

The first fossil representatives of the harvestman subfamily Ortholasmatinae (Opiliones, Dyspnoi, Nemastomatidae) are described as Balticolasma wunderlichi gen. et sp. nov. One male is preserved in Eocene Baltic amber and a presumably conspecific female in Eocene Rovno amber (northwest Ukraine). Ort...

https://www.app.pan.pl/article/item/app012822025.html
06/04/2026

https://www.app.pan.pl/article/item/app012822025.html

The present paper describes a bryozoan fauna from the Devonian of Holy Cross Mountains (Poland) which includes nine species. Six species were described from the Dobruchna Member of the Skały Formation (Eifelian) of Skały section: Cyclotrypa sp., Fistuliphragma gracilis, Leioclema passitabulatum, I...

https://www.app.pan.pl/article/item/app012542025.html
06/04/2026

https://www.app.pan.pl/article/item/app012542025.html

The first fossil insect from the Cisuralian (Lower Permian) Arroyo Totoral Formation, south of Sierra de los Llanos, Paganzo Basin, southeastern La Rioja Province, Argentina is reported. A new species of Phyloblattidae (Dictyoptera), Anthracoblattina macucai sp. nov., is described from an almost com...

https://www.app.pan.pl/article/item/app012842025.html
06/04/2026

https://www.app.pan.pl/article/item/app012842025.html

This study examines the bird ichnoassemblage of the Miocene Vinchina Formation (La Rioja Province, Argentina), recorded in fluvio-lacustrine environments. Both unpublished material and previously collected specimens were analysed across three transverse sections cropping out from north to south in t...

https://www.app.pan.pl/article/item/app013002025.html
06/04/2026

https://www.app.pan.pl/article/item/app013002025.html

The fossil genus Yuskaichthys, previously known only from Eocene deposits of the Maíz Gordo site in Argentina, is here identified based on three isolated parieto-supraoccipital bones collected in the Tiupampa locality, Cochabamba-Potosí Basin, Bolivia. This discovery notably extends both the paleo...

https://www.app.pan.pl/article/item/app013052025.html
06/04/2026

https://www.app.pan.pl/article/item/app013052025.html

This paper describes three new species belonging to the genus Styringomyia, based on specimens preserved in Early Miocene (Burdigalian) Dominican amber: Styringomyia caridadi sp. nov., S. caribeana sp. nov., and S. grimaldii sp. nov. Previously, only five extinct species of Styringomyia were known,....

https://www.app.pan.pl/article/item/app012812025.html
06/04/2026

https://www.app.pan.pl/article/item/app012812025.html

A bivalve association reported herein was recently discovered from the Xiazhen Formation (upper Katian, Upper Ordovician) at Zhuzhai, southern Yushan County, northeastern Jiangxi Province, East China. Nine genera and ten species are systematically documented including four new species: Palaeoneilo r...

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