Juracanthocephalus

Juracanthocephalus
Temporal range:
Middle Jurassic (Callovian),
Scientific classification
Kingdom: Animalia
Phylum: Acanthocephala
Genus: †Juracanthocephalus
Luo et al., 2025
Species:
†J. daohugouensis
Binomial name
†Juracanthocephalus daohugouensis
Luo et al., 2025

Juracanthocephalus is an extinct, monospecific genus of stem-group acanthocephalan (thorny-headed worm) that lived in the Jiulongshan Formation during the Callovian age of the Middle Jurassic, 165 Ma.

It shares features with both Seisonidea and Acanthocephala, suggesting they are sister groups, with Juracanthocephalus being a transitional form between the two.

The type and only species is Juracanthocephalus daohugouensis.

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