Bulletin of the Mizunami Fossil Museum Vol. 52, No. 1
New Brachyura (Crustacea: Decapoda: Raninoida: Eubrachyura) from the earliest Eocene of New Jersey, USA
- BMFM52-008Schweitzer1（PDF 11.84MB）
- BMFM52-008Schweitzer1_web（PDF 4.45MB）
Schweitzer (2025a) print-version
Schweitzer (2005a) small-version
Published: 2025/8/1 Page: 121–132
Earliest Eocene carbonates of the Vincentown Formation, New Jersey, yield a limited but notable brachyuran fauna. Arcticocarcinus americanus new species marks the first Cenozoic record of Necrocarcinidae (Raninoida) in North America. Three different epibionts colonize the carapace of the holotype of A. americanus new species. Feldmannicarcinus new genus documents a preference for carbonate environments within Tumidocarcinidae (Carpilioidea), unusual among members of the family. Feldmannicarcinus sturgeoni (Feldmann et al., 1998) new combination and Feldmannicarcinus hajzeri new species document the new genus from Ypresian through Bartonian rocks of east coastal North America. Mounting evidence suggests that Paleocene carbonate localities of the North Atlantic served as a Cenozoic refugium for many decapod lineages that originated in the Cretaceous (Schweitzer and Feldmann, 2023).