coelacanths
41James Leonard Brierley Smith — Pour les articles homonymes, voir Smith. Le professeur James Leonard Brierley Smith (26 septembre 1897 8 janvier 1968) était un ichthyologiste sud africain. Il reste célèbre pour avoir été le premier en 1939 à identifier un poisson récemment… …
42Latimeria — Cœlacanthe …
43Geografía de Comoras — Continente África Región África austral …
44epicaudal lobe — a median terminal lobe of the caudal fin characteristic of coelacanths …
45intracranial joint — the joint between two divisions of the Crossopterygian braincase. It may help in the consumption of large prey by suction in coelacanths …
46lobe-finnedfish — lobe finned fish (lōbʹfĭnd ) n. A member of the subclass Crossopterygii, a group of bony fishes with paired rounded fins, suggesting limbs, that are extinct except for the coelacanths. The lobe finned fishes are regarded by some as ancestors of… …
47chondrichthian — /kon drik thee euhn/, n. any member of the class Chondrichthyes, comprising the cartilaginous fishes. [ < NL, equiv. to chondr CHONDR + Gk ichthýes (pl.) fish] * * * ▪ fish class Introduction class name Chondrichthyes, or Selachii any… …
48skeleton — skeletonless, adj. skeletonlike, adj. /skel i tn/, n. 1. Anat., Zool. the bones of a human or an animal considered as a whole, together forming the framework of the body. 2. any of various structures forming a rigid framework in an invertebrate.… …
49Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… …
50Dipterus — ▪ paleontology genus of very primitive lungfish, among the earliest known, found as fossils in European and North American Devonian rocks (the Devonian Period lasted from 416 million to 359 million years ago). Lungfishes, along with… …
