Bioluminescence evolved once in Squaliformes, approximately 111–153 million years ago, and helped the Squaliformes radiate and adapt to the deep sea...

families. Squalean sharks are divided into four orders: the Hexanchiformes, Squaliformes, Squatiniformes, and Pristiophoriformes. The order Hexanchiformes is...

have been documented. Squalidae Classification Order: Squaliformes Family: Within Squaliforme order, there are seven families Centrophoridae – gulper...

The Somniosidae are a family of sharks in the order Squaliformes, commonly known as sleeper sharks. The common name "sleeper shark" comes from their slow...

palaeontological and phylogenetical analysis of squaliform sharks (Chondrichthyes: Squaliformes) based on dental characters". Lethaia. 34 (3): 234–248. doi:10.1111/j...

such as squaline and scientific names for sharks, such as the order Squaliformes. Currently, 33 recognized species are placed in this genus: Squalus acanthias...

species of the Squalidae (dogfish) family of sharks, which is part of the Squaliformes order. While these common names may apply to several species, Squalus...

The Etmopteridae are a family of sharks in the order Squaliformes, commonly known as lantern sharks. Their name comes from the presence of light-producing...

  Extinct in the wild (EW): 6 species   Critically endangered (CR): 455 species   Endangered (EN): 643 species   Vulnerable (VU): 1,245 species   Near...

family Squalidae, which at the time was used for all members of the order Squaliformes aside from the bramble and rough sharks. In a 1992 morphological study...