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...

and molecular studies, either being included within Squaliformes, considered sister to Squaliformes, or placed in a separate group with Sawsharks (Pristiophoriformes)...

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...

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

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