Molecular phylogeny of hemichordata, with updated status of deep-sea enteropneusts
Notably, support for enteropneust
monophyly is moderate (65/0.99), and SH testing did not reject the alternative hypothesis (enteropneust
EXTERNALLY BROODING ENTEROPNEUST
Table 1 Specimen and sequence identification 18S 16S Voucher Citation Torquaratoridae Yoda purpurata JN886757 JNSS6740 NHMUK 2011.5 Osborn et (117l-36a) al., 2012 Yoda purpurata JN886758 JN886741 NHMUK 2011.6 Osborn et (117l-36b) al., 2012 Yoda purpurata JN886759 JN886742 NHMUK 2011.9 Osborn et (1174-43a) al., 2012 Genus B sp.
A comparative molecular approach to mesodermal patterning in basal deuterostomes: the expression pattern of Brachyury in the enteropneust
It is robust and can be collected intact, unlike many other species of enteropneust
, which are fragile and easily broken.
Given the unquestionable shared form of the hemichordate pharynx with that of fossil echinoderms and protochordates, I decided to investigate the potential for filter feeding in the enteropneust
worm Harrimania planktophilus.
How is the pterobranch feeding apparatus and ciliation similar to an enteropneust
's proboscis and collar?
Brachiopods, sipunculans, enteropneusts
and metals from two estuarine tidal flats, Pacific, Costa Rica.
"Our description of Spartobranchus tenuis, a creature previously unknown to science, pushes the fossil record of the enteropneusts
back 200 million years to the Cambrian period, fundamentally changing our understanding of biodiversity from this period," he added.
The discovery of a 500-million-year-old penis-shaped fossil has provided a missing link that pushes back evolution of enteropneusts
by 200 million years.
Yoda purpurata -- to be exact -- is the name now given by a University of Aberdeen-led team of scientists to one of three new species of deep sea acorn worms or Enteropneusts
discovered 2,500m or around 1.5 miles below the surface of the Atlantic Ocean.
La Paz, Baja California Sur; commensal of enteropneusts
. *Lepidasthenia ornata Treadwell, 1937: 145-147, pl.