TaxonHub

Expansive Chimaera Tooth

Deltoptychius expansus

An extinct cartilaginous fish species from the Holocephali class, known from fossil records of the Carboniferous period, characterized by specialized dental plates typical of ancient holocephalian groups.

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Ecology & Habitat

Habitat

Prehistoric marine environments of North America, likely inhabiting shallow to moderate depth marine ecosystems during the late Paleozoic era.

Ecological Role

As a prehistoric marine predator, it played a crucial role in marine food webs and represented an evolutionary stage in chimaera fish development.

Morphology

  • SKIN COAT Cartilaginous external covering, potentially with dermal denticles characteristic of ancient marine vertebrates
  • LIMBS WINGS Primitive fin structures consistent with early holocephalian evolutionary stages
  • HEAD SENSORY Likely possessed enhanced sensory capabilities for marine hunting, with specialized dental plates for grinding prey
  • BODY STRUCTURE Cartilaginous skeleton, streamlined marine predator form typical of early holocephalian fish
Data Source: TaxonHub Database
Image Credit: Wikimedia Commons
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Related Species in Squalorajidae