1. A new sponge genus from the Chengjiang biota with an intriguing combination of skeletal characters

   • Ailin Chen
   • Luis Porras
   • Gert Wörheide

   Research Paper Open access 09 June 2023 Pages: 443 - 450

   

2. Internal conulariid structures unveiled using µCT

   • Consuelo Sendino
   • Brett Clark
   • Willian Rushlau

   Research Paper Open access 30 March 2023 Pages: 451 - 467

   

3. Stepwise growth changes in early post-embryonic stages among Cretaceous tetragonitid ammonoids

   • Yoshitaka Kawakami
   • Ryoji Wani

   Research Paper Open access 30 March 2023 Pages: 469 - 483

   

4. Unusual larviform beetles in 100-million-year-old Kachin amber resemble immatures of trilobite beetles and fireflies

   • Carolin Haug
   • Ana Zippel
   • Joachim T. Haug

   Research Paper Open access 31 March 2023 Pages: 485 - 496

   

5. The first Palaeozoic spider (Arachnida: Araneae) from Germany

   • Jason A. Dunlop

   Research Paper Open access 16 July 2023 Pages: 497 - 504

   

6. A new Mesozoic scorpion from the Besano Formation (Middle Triassic, Monte San Giorgio UNESCO WHL), Italy

   • Marco Viaretti
   • Gabriele Bindellini
   • Cristiano Dal Sasso

   Research Paper Open access 14 July 2023 Pages: 505 - 517

   

7. The pterosaurs of the Cretaceous Kem Kem Group of Morocco

   • Roy E. Smith
   • Nizar Ibrahim
   • David M. Martill

   Research Paper Open access 04 February 2023 Pages: 519 - 568

   

8. Mandibular and dental characteristics of the Late Jurassic mammal Henkelotherium guimarotae (Paurodontidae, Dryolestida)

   • Zhe-Xi Luo
   • Thomas Martin

   Research Paper 06 April 2023 Pages: 569 - 619

   

9. Discovery of Cainochoerus (Mammalia, Artiodactyla, Suidae, Cainochoerinae) from the basal upper Miocene Nakali Formation, Kenya

   • Takehisa Tsubamoto
   • Yutaka Kunimatsu
   • Masato Nakatsukasa

   Research Paper 30 June 2023 Pages: 621 - 626

   

10. Gross and microscopic anatomy of a tibia tentatively attributed to a cetacean from the Middle Eocene of Europe, with a note on the artiodactyl Anoplotherium and on the perissodactyl Lophiodon

    • Svitozar Davydenko
    • Pavel Gol’din
    • Henk Jan van Vliet

    Research Paper 13 July 2023 Pages: 627 - 652

    

11. Hyaenid remains from the Late Miocene of Kutschwan (Shanxi Province, China)

    • Nikolaos Kargopoulos
    • Panagiotis Kampouridis
    • Madelaine Böhme

    Research Paper Open access 22 July 2023 Pages: 653 - 666