hypostome การใช้

• Despite their rich fossil record with thousands of described hypostome.
• Many variations in shape and placement of the hypostome have been described.
• Partly because of this, and partly because of their rather indistinct hypostome.
• Variation in trilobite hypostome morphology is crucial in modern discussions of trilobite phylogeny.
• It includes three hypostome that creates an indention superior to the gastric cavity.
• The hypostome, a small rigid plate comparable to the ventral plate in other arthropods.
• The " hypostome " is inserted and this provides the initial attachment strength.
• Functional interpretations of hypostome shape also allow for reasonable speculation on the feeding habits of trilobite species.
• Of particular interest are " macula ", the small areas of thinned cuticle on the underside of the hypostome.
• A toothless mouth and stomach sat upon the hypostome with the mouth facing backward at the rear edge of the hypostome.
• A toothless mouth and stomach sat upon the hypostome with the mouth facing backward at the rear edge of the hypostome.
• The'palate'( or hypostome ) is not connected to the dorsal shield of the cephalon ( or natant ).
• In the case of " Ixodes holocyclus " the " hypostome " is inserted very deep into the dermis.
• The doublure is shown in light gray, the inside surface of the cephalon in dark gray, and the hypostome in light blue.
• The "'hypostome "'is the hard mouthpart of trilobites found on the ventral side of the cephalon ( head ).
• These have a more or less cylindrical body with a terminal mouth on a raised protuberance called the hypostome, surrounded by a number of tentacles.
• The palate ( or hypostome ) is a convex ( the centre bulging down ), subquadrate plate, positioned directly under the frontal part of the glabella.
• The size of the glabella and the lateral fringe of the cephalon, together with hypostome variation, have been linked to different lifestyles, diets and specific ecological niches.
• Unlike " Dermacentor andersoni ", " Ixodes holocyclus " is a deep feeder with a long hypostome ( which may penetrate as deep as 1689 um ).
• The hypostome can be classified into three types based on whether they are permanently attached to the rostrum or not and whether they are aligned to the anterior dorsal tip of the glabella.