Reversal in some fossil polychaete jaws

From: Journal of Paleontology | Date: July 1, 1998| Author: | Copyright information

ABSTRACT-Scolecodonts, the jaws of polychaetes, are the fossil evidence of the rich and diverse fauna that prospered in shelf seas. Among eunicid polychaetes, the largest jaws in the jaw apparatus occur in pairs. Normally these pairs are not exact mirror images of each other. Rarely, left and right jaws are found to be reversed, the jaw in the left position having the morphology of a mirror image of the normal right jaw and vice-versa. This type of morphological reversal (reversed handedness) is recorded with a frequency that varies from one reversed jaw in 430 to one in 5,838 of normal jaws. ...

Read all of this article with a FREE trial to HighBeam Research

Related newspaper, magazine, and trade journal articles from HighBeam Research

(Including press releases, facts, information, and biographies)

'JAWS' SPINOFFS DON'T MEASURE UP
; ...Benchley received a $1,000 advance for "Jaws," a seemingly simple book on a shark that...paperback rights buy by Bantam, however, "Jaws" became a publishing phenomenon. But that...director Steven Spielberg transformed "Jaws," a simple fish- bites-man story, into...
`JAWS' AT 25 | THE TERROR-IFIC CLASSIC STILL HOLDS WATER
; ...in the first reel of Steven Spielberg's Jaws, is so powerful is because we can see ourselves...and that is the biggest selling point of Jaws, which premiered 25 years ago this week...how Hollywood schedules its films. Before Jaws, studios concentrated their efforts on...
`JAWS' | THE TERROR-IFIC CLASSIC STILL HOLDS WATER
; ...in the first reel of Steven Spielberg's Jaws, is so powerful is because we can see ourselves...and that is the biggest selling point of Jaws, which premiered 25 years ago this week...how Hollywood schedules its films. Before Jaws, studios concentrated their efforts on...
'JAWS:' NO. 4 HAS NO TEETH
; JAWS: THE REVENGE -- A film produced and directed by Joseph Sargent, written by Michael de Guzman...Guest, Mario Van Peebles and Michael Caine, at the USA Charles and suburbs, rated PG-13. Jaws: The Revenge" smells like what it is -- an old, dead fish. In "Jaws," director Steven Spielberg took a hackneyed ...
`Jaws' characters bite into shark's role
; ...This inlet is where the shark bites in "Jaws the Revenge." A million dollars is not...spend to provide a suitable setting for "Jaws the Revenge," which opened Friday at local...white shark terrorized the aqua-park in "Jaws 3-D," a big fish goes after the remnants...
'JAWS: THE REVENGE' DOESN'T HAVE ENOUGH BITE
; JAWS: THE REVENGE -- A film produced and directed by Joseph Sargent, written by Michael de Guzman...Guest, Mario Van Peebles and Michael Caine, at the USA Charles and suburbs, rated PG-13. Jaws: The Revenge" smells like what it is -- an old, dead fish. In "Jaws," director Steven Spielberg took a hackneyed ...
JAWS:THE BLOODY LEGACY; (or how his creator died, bitterly regretting the book that nearly wiped out the Great White).
; ...Peter's editor had other ideas. It became Jaws, the book which, with a little help from...now know, which wasn't known when I wrote Jaws,' Benchley explained, 'is that there is...from limb. Some conservationists claim the Jaws effect, plus commercial hunting, have deciby...
Reviews of `Jaws, E True Hollywood Story' and `Atomic Twister'.
; ...words. There are no memorable moments on Jaws for me. There's a lot of moments I'd like to forget, Spielberg confides in Jaws: The E! True Hollywood Story. At the...the 1975 blockbuster. Why I survived Jaws was because I didn't know any better...
IN 1975, 'JAWS' WAS LOVE BEFORE FIRST BITE
; ...director named Steven Spielberg. The film was Jaws and it changed everything about the way...marketed. Monday marks the 30th anniversary of Jaws' theatrical release, which Universal has...Funny Lady and Airport 75. The buzz about Jaws started even before it opened. Preview...
IN 1975, 'JAWS' WAS LOVE BEFORE FIRST BITE.(Spotlight)
; ...director named Steven Spielberg. The film was Jaws and it changed everything about the way...marketed. Monday marks the 30th anniversary of Jaws' theatrical release, which Universal has...Funny Lady and Airport 75. The buzz about Jaws started even before it opened. Preview...