- The
Echiura, or
spoon worms, are a
small group of
marine animals. Once
treated as a
separate phylum, they are now
considered to
belong to Annelida. Annelids...
-
oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora,
Echiura and Sipuncula,
previously regarded as
separate phyla, are now regarded...
- 2014). "Swimming
behavior of the
spoon worm
Urechis unicinctus (Annelida,
Echiura)". Zoology. 117 (3): 216–223. Bibcode:2014Zool..117..216A. doi:10.1016/j...
-
Kenneth M (5
April 2007). "Annelid
phylogeny and the
status of
Sipuncula and
Echiura". BMC
Evolutionary Biology. 7 (1): 57. Bibcode:2007BMCEE...7...57S. doi:10...
-
mitochondrial genome sequence of
Urechis caupo, a
representative of the
phylum Echiura". BMC Genomics. 5: 67. doi:10.1186/1471-2164-5-67. PMC 521484. PMID 15369601...
- high as 58,000 per
square meter (5,390 per
square foot).
Together with
Echiura and Sipuncula, they were once
placed in the
taxon Gephyrea, but consistent...
-
Patrick J.; Boukal,
David S. (2005). "****
determination in
Bonellia viridis (
Echiura: Bonelliidae): po****tion
dynamics and evolution" (PDF). Oikos. 108 (3):...
- Schembri,
David S.
Boukal (2005). ****
determination in
Bonellia viridis (
Echiura: Bonelliidae): po****tion
dynamics and
evolution Archived 2005-04-11 at...
- List of
annelid families describes the taxa
relationships in the
phylum Annelida,
which contains more than 17,000
extant species including ragworms, earthworms...
-
within Sedentaria are: ****ellata, the Sabellida/Spionida clade, Opheliida,
Echiura, Cirratuliformia, Terebelliformia,
Maldanomorpha and the
families Siboglinidae...
