- A
chordate (/ˈkɔːrdeɪt/ KOR-dayt) is a
deuterostomic animal belonging to the
phylum Chordata (/kɔːrˈdeɪtə/ kor-DAY-tə). All
chordates possess, at some...
-
pineal gland is
present in
almost all vertebrates, but is
absent in
protochordates in
which there is a
simple pineal homologue. The hagfish, considered...
- crustacean. A.
Ritchie (1985). "Ainiktozoon
loganense Scourfield, a
protochordate? from the
Silurian of Scotland". Alcheringa. 9 (2): 117–142. doi:10...
-
present in the
pharyngeal pouches of
protochordates as they are in fishes;
rather the [pharangeal]
slits of
protochordates are part of
their feeding mechanism...
- that
reside in the
ammocoete has
extremely similar functions as the
protochordate hypobranchial groove. Thus,
numerous investigations into the endostyle...
- proto-chordates.
Pikaia has been
heavily promoted as the
oldest fossil protochordate."
Richard Dawkins 2004 The Ancestor's Tale p. 289, ISBN 0-618-00583-8...
- Chichester). Zeng, L.; Swalla, B. J. (2005). "Molecular
phylogeny of the
protochordates:
chordate evolution". Can. J. Zool. 83: 24–33. doi:10.1139/z05-010....
- Ritchie,
Alexander (1985). "Ainiktozoon
loganense Scourfield, a
protochordate from the
Silurian of Scotland". Alcheringa. 9 (2): 137. Bibcode:1985Alch...
- gastrin/cholecystokinin-like
peptide and cionin, a
neuropeptide from the
protochordate Ciona intestinalis.
Gastrin and CCK are
important hormonal regulators...
- the
migration of the
mouth from the
dorsal to the
ventral side in a
protochordate. Some
biologists have
proposed that the
Hemichordates (specifically...
