Dictionary » C » Chordata



A phylum of the animal Kingdom comprising all the animals that have, at some stage in their life, a notochord (a hollow dorsal nerve cord), pharyngeal slits and a muscular tail extending past the anus.

Includes the subphyla cephalochordata, urochordata, and vertebrata (vertebrates).

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Book recommendation for exam

Please recommend me books for studying these topic. Paper-1 Section-A 1. Non-chordata and chordata 2. Classfication and relationship of varous phyla upto sub-classes; Acoelomata and Coelomata; Protostomes and Deuterostomes, Bilateralia and Radiata; Status of Protista, ...

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by bertstare
Sun Oct 21, 2012 2:19 pm
Forum: Zoology Discussion
Topic: Book recommendation for exam
Replies: 3
Views: 8490

Re: Clade v. Phylum

A phylum is a taxonomic category (we belong to the phylum Chordata) and a clade is a group of descendants of a common ancestor. So all your family members that are descended from your maternal grandmother form a clade (your mother, but not your father, ...

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by wbla3335
Mon Mar 26, 2012 1:38 am
Forum: Evolution
Topic: Clade v. Phylum
Replies: 6
Views: 11292

Number of Species

... hoping to simply update the numbers. Does anyone know a good source for finding this information (the number of species in the major classes of chordata)? Hope you can help. Thanks so much! http://i161.photobucket.com/albums/t234/pauxcide/chordatesmall.jpg Larger image here: ...

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by paux
Sat Nov 05, 2011 2:22 am
Forum: Zoology Discussion
Topic: Number of Species
Replies: 1
Views: 2011

Re: on phylogeny / what are we ?

... aside ( because in life we very often do refer to "fish" and "monkey". http://www.helsinki.fi/~mhaaramo/metazoa/deuterostoma/chordata/sarcopterygii/sarcopterygii_1.html ), his point is that we are indeed . Great Ape, Ape, and ...Monkey. Taking this all the way back, we are ...

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by Crucible
Sun Sep 25, 2011 3:02 pm
Forum: Evolution
Topic: on phylogeny / what are we ?
Replies: 45
Views: 27714

Re: 5 best proofs of evolution

... Humans, dogs, snakes, fish, monkeys, eels (and many more life forms) are all considered "chordates" because we belong to the phylum Chordata. One of the features of this phylum is that, as embryos, all these life forms have gill slits, tails, and specific anatomical structures involving ...

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by JackBean
Wed Sep 22, 2010 11:39 am
Forum: Evolution
Topic: 5 best proofs of evolution
Replies: 170
Views: 269305
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