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1
A Dictionary of Scientific Terms: Pronunciation, Derivation, ...
spiraculate (splräk'ulf,t) a. [L. spiraculum, an air-hole.] Having spiracles (zool.).
spiraculiferous, — spiraculate. spiracullform (splräk'ullfôrm) a. [L. spiraculum, an
air-hole ; forma, shape.] Spiracle-shaped. spiraculum (splräk'ulum) я.
Isabella Ferguson Henderson, William Dawson Henderson,
1920
2
Invertebrate Palaeontology and Evolution
Euan Clarkson. Figure 9.48 view; [cl ambulacra with hydrospires in section; (d), (
e) Orbitremites, a Lower Carboniterous spiraculate blastoid; (all in lateral view (>
< 3); (e) hyclrospires in section. > ...
3
Patterns of evolution, as illustrated by the fossil record
Both fissiculate and spiraculate blastoids appear and disappear simultaneously (
Figs. 7, 14 and 7, 15). Echinoids, with their tube-foot/ampulla systems, first
appear in the Middle Ordovician and show little change until the development of
...
4
Echinoderm phylogeny and evolutionary biology
rofei is a very abundant spiraculate blastoid endemic to northwestern Ireland. It is
primarily associated with shallow water reefs in the Dartry Limestone, but is also
found in non-reef facies. In contrast, the only blastoid described from the Asbian ...
Christopher R. C. Paul, Andrew B. Smith,
1988
5
Proceedings of the Koninklijke Nederlandse Akademie Van ...
C. W. Dbooger at the meeting of October 26, 1974) Introduction The aim of the
present paper is to put an end to the long standing uncertainty about the
taxonomic status of some Lower and Middle Devonian genera and species of
spiraculate ...
6
Treatise on Invertebrate Paleontology
Some forms (Anthoblastus , Ceratoblastus , and Nanno- blastus, Fig. 226) are
highly peculiar and specialized. Developmental patterns among the few Permian
spiraculate genera are much more conventional by comparison. The only
globose ...
Raymond Cecil Moore,
1967
7
The Insects: An Outline of Entomology
Larvae are prognathous, with well-developed mouthparts, including
threesegmented labial palps; they are spiraculate, with gills consisting of four- to
five-segmented (Sialidae) or two-segmented lateral filaments on the abdominal
segments; ...
P. J. Gullan, P. S. Cranston,
2010
8
Abstracts for 1965: Abstracts of papers submitted for six ...
... of Comparative Zoology, Harvard University, Cambridge, Mass., and R. C.
GUTSCHICK, Dept. Geology, University of Notre Dame, Notre Dame, Ind.
Numerous well-preserved spiraculate blastoids occur in a small channel fill
system in unit G ...
Geological Society of America,
1966
9
Oxford English Dictionary Additions Series
spin on I the squits I stethoscoped I spinal I Staatsoper I St. Helenian I spindle I
Stabex I stick I spinner I stabilator I to stick it on I spinto I stabilism I to stick one on
I spiraculate I stabilist I underwriting stick I spitzer I Stableford I sticky I splatter I ...
J. A. Simpson, Michael Proffitt, E. S. C. Weiner,
1997
... probably lived in association with many other spiraculate and fissiculate
blastoids as members of the community. Another species of Pentremites, P.
pyriformis, lived in similar Osagian carbonate platforms in the western United
States, ...