rhabdosome

rhabdosome

[′rab·də‚sōm]
(invertebrate zoology)
A colonial graptolite that develops from a single individual.
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Evolutionary trends through time have been recognized in graptolites as a whole, including the reduction of the rhabdosome (tubarium) size and number of branches and an increase in the degree of thecal complexity, e.
The genus is characterized by a reticulated rhabdosome with the nema incorporated in its distal part of the lateral wall, and a lack of genicular hoods.
Some significantly reduced rhabdosomes are also observed among Llandovery retiolitids, such as Rotaretiolites Bates & Kirk, 1992, but its sicula is short as in other Llandovery forms and the appendix is not known.
9 hornbills (0) moorishly 12 lymphangitic (1) staphyloncus 10 munitioned (2) phytotoxin 11 bicorporeal (3) uncolorably 8 dram shop (4) moldwarp 12 lantern-jawed (5) veratralbine 10 unscalably (6) unshuffled 12 processioner (7) spectroscopy 9 staghound (8) tubaphone 13 extravagating (9) vice-principal 9 scrubbing (10) whipbirds 9 ridgewise (11) Scotch egg 12 philarchaist (12) well adjusted 11 albumenizes (11) albumenizes 9 handcraft (14) unwalking 9 blockages (15) meadowink 11 overcheaply (16) unrepliably 10 coeminency (17) discommode 10 adnexopexy (18) untrounced 10 bargepoles (19) rhabdosome 12 prelatically (20) triplicative 12 arithmograph (21) dumbfounding 11 unretrieved (22) cranberries 12 lexicologist (23) soliloquized 9 fitting up (24) skippered 9 Huygenian (25) squallery
and one incomplete rhabdosome of Paradelograptus cf.
Development of rhabdosomes with four primary branches in the group Dictyonema flabelliforme (Eichwald).
However, some good specimens of Haddingograptus oliveri (Boucek) in 3D preservation were found in association with fragmentary rhabdosomes of Pseudamplexograptus sp.