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1
Benthic Suspension Feeders and Flow
Commercially important siphonate bivalves include many species of clams and
cockles, while non-siphonate forms include various species of scallops, oysters,
and mussels. Some information about the unimodal filtration/feeding response of
...
David Wildish, David Kristmanson, 2005
2
Patterns of evolution, as illustrated by the fossil record
The number of families of free-burrowing, non-siphonate, suspension-feeding
clams is about the same today as it was in the Devonian (Fig. 4). In contrast, the
number of siphonate families has risen from perhaps zero to about forty.
Estimates ...
3
Predator-Prey Interactions in the Fossil Record
During the Mesozoic there was a proliferation of superfamilies and families
containing siphonate burrowers (Stanley, 1968; Skelton el al.. 1990). Stanley's
work suggested that there were only two clades of siphonate burrowers, the
majority of ...
Patricia H. Kelley, Michal Kowalewski, Thor A. Hansen, 2003
4
Causes of Evolution: A Paleontological Perspective
Burrowing Nonsiphonate Burrowing Siphonate 42% 84% Large Burrowing \
Siphonate """illl . . ' i 116 Small Burrowing Siphonate 73% 30% Pectinacea 96%
71% '.-Hi m, bb Other Epifauna B Figure 4.4. Differences in rate of extinction
between ...
Robert M. Ross, Warren D. Allmon, 1990
5
Phylogeny and Evolution of the Mollusca
Within Hypsogastropoda, the molecular analysis of Colgan et al. (2007) (Figure
13.15) and our combined analysis (Figure 13.17) revealed two main clades: a
siphonate paraphyletic clade and one in which the anterior siphon is lacking,
apart ...
W. F. Ponder, David R. Lindberg, 2008
6
The Piripauan and Haumurian stratotypes (Mata Series, Upper ...
lnfaunal non-siphonate labial palp deposit feeder, low mobility. Nuculana
lJupiteria) amuriansis Woods • • • lnfaunal siphonate labial palp deposit feeder,
moderate to high mobility. Nuculana sp. • lnfaunal siphonate labial palp deposit
feeder, ...
Guyon Warren, Ian Gordon Speden, 1978
7
United States Geological Survey Professional Paper
Test elongate, free ; first few chambers triserial, quickly becoming biserial and
angular, the angulation being at or just above the middle of the chambers; wall
calcareous and finely spinose; aperture siphonate with a short neck, subcircular
lip ...
8
Geological Survey Professional Paper
... pelecypods are ecologically highly diverse and include: (1) infaunal burrowing
deposit feeders, (2) infaunal burrowing suspension feeders, (3) siphonate
infaunal suspension feeders, (4) endobyssate (semi-infaunal) suspension
feeders, ...
9
Molluscs: Prosobranchs and Pyramidellid Gastropods: Keys and ...
KEYE. Key. to. siphonate. families. of. British. marine. prosobranchs. (see. Key. B.
p. 48). 1. Spire hidden, shell a cowrie or similar 2 Spire visible 3 2. Shell a cowrie,
aperture not extended into long apical and basal canals Eratoidae (p.
Alastair Graham, Linnean Society of London, 1988
10
Untangling Ecological Complexity: The Macroscopic Perspective
Globigerinids also had more species extant during the Neogene. tion sizes for
siphonate bivalves were much higher than for nonsiphonates primarily because
siphonates were better able to escape predation. His conceptual model
postulated ...
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Giant Jurassic fleas measuring more about an inch long may have …
They had huge 'siphonate' mouth parts - which scientists say could have helped pierce their hosts' scaly skin. Giant female (left) and male (right) fleas from the ... «Daily Mail, 三月 12»
Giant Prehistoric Fossilized Fleas Found From Mesozoic Era Of China
Their long piercing mouthparts suggest a resemblance to some Mesozoic siphonate mecopteran, which supports the hypothesis that fleas are derived from ... «Asian Scientist Magazine, 三月 12»
