-
Watsonella is an
extinct genus of
mollusc known from
early (Terreneuvian)
Cambrian strata. It has been
hypothesized to be
close to the
origin of bivalves...
-
definitions for the
lower boundary are the
first appearance of the
molluscs Watsonella crosbyi or
Aldanella attleborensis around 529
million years ago. The correlation...
- ISSN 1214-1119.
Archived from the
original (PDF) on 2023-07-16. Li, G. "The Fad of
Watsonella Crosbyi".
Archived from the
original on 2017-01-16. Brasier, Martin; John...
- Parkhaev, 2001
Watsonella Grabau, 1900 – type
genus of the
subfamily Watsonellinae Watsonella crosbyi Grabau – type
species of the
genus Watsonella Yochelson...
- and Fordilla;
these probably lie in the stem
rather than
crown group.
Watsonella and
Anabarella are
perceived to be (earlier)
close relatives of these...
-
Cambrian period, and
considered the
earlier fossil genera Anabarella,
Watsonella, and
Mellopegma to be
members of the
diasome stem group. Runnegar, Bruce;...
-
species may be a
rostroconch from
Watsonella or it may be a bivalve. Thus the
positioning of the
species is
currently Watsonella?
terranovica but with doubt...
- (1999). "S****
microstructures of the
Early Cambrian Anabarella and
Watsonella as new
evidence on the
origin of the Rostroconchia". Lethaia. 32 (2):...
- has been
aligned to the Helcionellidae. The
genus is
closely related to
Watsonella, with
which it
bears many
morphological similarities,
including a laminar...
-
similar to s****
layering found in the
extinct genera Anabarella and
Watsonella which is
thought to
suggest members of the
phylum Mollusca developed nacre...
