-
Amiskwia is a
genus of soft-bodied
animals known from
fossils of the
Middle Cambrian Lagerstätten both in the
Burgess Shale in
British Columbia, Canada...
- a chaetognath, but was
probably more
basal to
modern arrow worms than
Amiskwia. As of
January 2024, 13
known specimens have been ****igned to this species...
- defecation.
Unlike other gnathiferans, in
chaetognaths and the
extinct Amiskwia the **** is
located on the
ventral surface in a
subterminal position. Both...
-
improves phylogenetic frameworks: re-evaluating
placement of the
fossil Amiskwia sagittiformis".
Journal of
Systematic Palaeontology. 20 (1): 1–14. doi:10...
- horseshoe-shaped carapace.
Pikaia was a stem-chordate from the
Middle Cambrian Amiskwia sagittiformis was a
large bodied gnathiferan from
Canada and
China Haplophrentis...
- four families, six genera, for a
total of 58
species – plus the
extinct Amiskwia,
classified as a true
primitive chaetognath in a
separate class, Archisagittoidea...
-
Miaolingian PreꞒ Ꞓ O S D C P T J K Pg N ↓ C.
praetermissus compared to
Amiskwia Scientific classification Domain:
Eukaryota Kingdom:
Animalia Phylum: Chaetognatha...
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Micrognathozoa Syndermata (Rotifera)
including Acanthocephala Chaetognatha †
Amiskwia (not
placed in a phylum) †Timorebestia (stem-chaetognath) †Inquicus †Nectocarididae...
-
traces from the
Middle Tri****ic of Germany. The
Middle Cambrian fossil Amiskwia from the
Burgess Shale has been
classed as a nemertean,
based on a resemblance...
-
chaetognathan evolution before arrow worms became planktonic swimmers.
Amiskwia Total group Gnathifera Walcott Quarry A large, soft
bodied animal. Recently...