Bdellodus

Bdellodus; Temporal range:
	Teeth from Bdellodus bollensis
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	Hybodontiformes
Family:	Hybodontidae
Subfamily:	?Acrodontinae
Genus:	Bdellodus; Quenstedt, 1882

Bdellodus is an extinct genus of hybodont from the Early Jurassic epoch of the Jurassic Period. The name roughly translates to "Leech Tooth." Friedrich August von Quenstedt named them this due to their "coal-black" color which he associated with leeches. It is monotypic, containing only the species B. bollensis. It is known from the Toarcian of Germany. It was named on an associated dentition. It is often placed in the subfamily Acrodontinae alongside other durophagous hybodontids.[1][2]

References

Maisch, M. W., & Matzke, A. T. (2016). A new hybodontid shark (Chondrichthyes, Hybodontiformes) from the Lower Jurassic Posidonienschiefer Formation of Dotternhausen, SW Germany. Neues Jahrbuch Für Geologie Und Paläontologie - Abhandlungen, 280(3), 241–257.
QUENSTEDT, F.A. (1882) Bdellodus bollensis aus dem Posidonienschiefer bei Boll. Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg, 38: 137–142, pl. 3.

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[1] Maisch, M. W., & Matzke, A. T. (2016). A new hybodontid shark (Chondrichthyes, Hybodontiformes) from the Lower Jurassic Posidonienschiefer Formation of Dotternhausen, SW Germany. Neues Jahrbuch Für Geologie Und Paläontologie - Abhandlungen, 280(3), 241–257.

[2] QUENSTEDT, F.A. (1882) Bdellodus bollensis aus dem Posidonienschiefer bei Boll. Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg, 38: 137–142, pl. 3.