different between mammal vs gnathostome

English

Etymology

Modern Latin Mammalia, coined 1758 by Linnaeus for the class of mammals, from neuter plural of Late Latin mammalis (“of the breast”), from Latin mamma (“breast”), perhaps cognate with mamma (mother).

Pronunciation

• (General American) IPA^(key): /?mæm?l/
• Hyphenation: mam?mal

Noun

mammal (plural mammals)

1. An animal of the class Mammalia, characterized by being warm-blooded, having hair and producing milk with which to feed its young.
2. (paleontology) A vertebrate with three bones in the inner ear and one in the jaw.

Hyponyms

• See also Thesaurus:mammal

Derived terms

Related terms

• mammarial
• mammary

Translations

English

Etymology

gnatho- +? -stome

Noun

gnathostome (plural gnathostomes)

1. (zoology) Any vertebrate with jaws, including amphibians, reptiles, mammals, and most modern fish, in contrast with the Agnatha
   • 2009 January 15, Martin D. Brazeau, “The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins”, Nature Volume 457 No. 7227, doi:10.1038/nature07436:

     Current conceptions of gnathostome phylogeny depict a rather simplistic arrangement of nominally monophyletic and, apparently, morphologically disparate groups.