selachian
/sɪˈleɪkɪən
/Zoology
noun
An elasmobranch fish of a group that comprises the sharks and dogfishes.
- The former group Selachii, subclass Elasmobranchii: now treated as one, two, or three superorders.
- Fish included many elasmobranchs as well as osteichthyes such as palaeoniscoids, dipnoi, selachians, and crossopterygians, together with the ancient acanthodians.
- Lack of neural spine is consistent with selachians (a group of vertebrates which includes sharks and rays).
adjective
Relating to the selachians.The A. alatus specimens were collected from tuffaceous fine-grained sandstones that overlay the very fossiliferous yellowish tuffs containing abundant remains of bivalves, echinoids, whale vertebrae, and selachian teeth.
Origin
Mid 19th century: from modern Latin Selachii (from Greek selakhos 'shark') + -an.
- handleable
- hand lead
- Hand, Learned
- handlebar
- handlebar moustache
- handleberry
- handled
- handle dish
- handleless
- hand lens
- handle (or treat) someone/thing with kid gloves
- handler
- handless
- hand letter
- hand-lettered
- hand lettering
- Handley Page, Frederick
- hand-line
- handline
- hand-liner
- handling charge
- rough-textured
- rough timber
- rough tongue
- rough-tongued