Search Results for: Animal horn-cores treated with acid
contains a vast total of named species, second only to the insects in overall number. the fossil history of this class goes back to the late cambrian . as of 2017 [update] , 721 families of gastropods are known, of which 245 are extinct and appear only in the fossil record, while 476 are currently extant with
or without a fossil record. [5] gastropoda (previously known as univalves and sometimes spelled "gasteropoda") are a major part of the phylum mollusca, and are the most highly diversified class in the phylum , with 65,000 to 80,000 [3] [4] living snail and slug species . the anatomy , behavior, feeding...
https://en.wikipedia.org/wiki/Gastropoda