Parvodus

Parvodus is an extinct genus of hybodont, known from the Mesozoic era.

Parvodus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	†Hybodontiformes
Family:	†Lonchidiidae
Genus:	†Parvodus Rees & Underwood, 2001
Type species
Lissodus rugianus Ansorge, 1990

Species

The initial study naming the genus considered 3 species valid, which were originally placed in Lissodus.^[1]

• P. curvidens (Duffin and Thies, 1997), Kimmeridgian, Germany
• P. ominechonensis Breeden et al., 2024, Carnian, Japan
• P. pattersoni (Duffin, 1985), Bathonian, England and Scotland
• P. rugianus (Ansorge, 1990) Berriasian-Valanginian, England, Germany, Denmark and Sweden.

The paper also noted a possible record is known from the Sinemurian of England.^[1]

Some later studies also included the species Parvodus heterodon (Patterson, 1966) from the Early Cretaceous of England in the genus,^[2] though other studies have included this species in the genus Polyacrodus.^[3] Some studies have also included the species "Hybodus" parvidens Woodward, 1916, from the Early Cretaceous of Europe and North America within Parvodus,^[4] though again this species has also been assigned to Polyacrodus.^[3][5] A 2023 paper assigned the newly described species P. huizodus from the Early Triassic of China to the genus.^[4] The species Parvodus celsucuspus Rees et al., 2013 has been reported from the Early Cretaceous of England and France.^[6][7]