heterodontosauridae is a family of early ornithischian dinosaurs that were likely among the most basal primitive members of the group. although their fossils are relatively rare and their group small in numbers, they lived across all continents except australia for approximately 100 million years, from the late triassic to the early cretaceous. .
dental hatchers: used to widen the entrance of the tooth cavity and slice away the thin carious enamel. chisels: strht - bevels the cavosurface margin and used in 3, 4 and 5 classifications of cavities on the maxillary. wedelstaedt - only used in the anterior for classes 3, 4 and 5 as well.
sir hugh vere huntly duff munro-lucas-tooth, 1st baronet 13 january 1903 – 18 november 1985 , born and baptised hugh vere huntly duff warrand and known as sir hugh vere huntly duff lucas-tooth, 1st baronet, from 1920 to 1965, was a scottish british conservative politician. elected to parliament in 1924 at the age of 21, he was the first british mp to have been born in the 20th century.
a spring-tooth harrow, sometimes called a drag harrow, is a type of harrow, and specifically a type of tine harrow.it is a largely outdated piece of farm equipment.it uses many flexible iron teeth mounted in rows to loosen the soil before planting. it is set in the ground and raised manually and cannot be backed up; this is why it has been replaced by more modern equipment such as the chisel .
drilling hammer – a short handled sledgehammer originally used for drilling in rock with a chisel. the name usually refers to a hammer with a 2-to-4-pound 0.91 to 1.81 kg head and a 10-inch 250 mm handle, also called a 'single-jack' hammer because it was used by one person drilling, holding the chisel in one hand and the hammer in the other.
cultivators of the toothed type are often similar in form to chisel plows, but their goals are different. cultivator teeth work near the surface, usually for weed control, whereas chisel plow shanks work deep beneath the surface, breaking up hardpan. consequently, cultivating also takes much less power per shank than does chisel plowing.
the chiseltooth wrasse pseudodax moluccanus is a species of marine ray-finned fish, a wrasse from the family labridae. it is native to the indian ocean and the western pacific ocean . it is an inhabitant of coral reefs and can be found at depths from 3 to 60 m 9.8 to 196.9 ft , though rarely deeper than 40 m 130 ft .
utaetus is an extinct genus of mammal in the order cingulata, related to the modern armadillos.the genus contains a single species, utaetus buccatus.it lived in the middle to late eocene about 40 to 36 million years ago and its fossil remains were found in argentina and brazil in south america.
chisel ploughs are becoming more popular as a primary tillage tool in row-crop farming areas. basically the chisel plough is a heavy-duty field cultivator intended to operate at depths from 15 cm 6 in to as much as 46 cm 18 in . however some models may run much deeper.
this gave the upper jaw the appearance of a 'zipper smile of little teeth'. the upper jaw was believed to have hooked downwards. discoveries in 2016, however, overthrew these findings, and revealed that atopodentatus actually had a hammer-shaped head, with a bank of chisel-shaped teeth, that was useful in rooting the seabed for food.
the cutting edge of each tooth is angled in an alternating pattern. this design allows each tooth to act like a knife edge and slice through the wood in contrast to a rip saw, which tears along the grain, acting like a miniature chisel. some crosscut saws use special teeth called 'rakers' designed to clean out the cut strips of wood from the .
coupland’s elevators also known as chisels are instruments commonly used for dental extraction. they are used in sets of three each of increasing size and are used to split multi-rooted teeth and are inserted between the bone and tooth roots and rotated to elevate them out of the sockets.
as hacksaw teeth are so small, they are set in a 'wave' set. as for other saws they are set from side to side to provide a kerf or clearance when sawing, but the set of a hacksaw changes gradually from tooth to tooth in a smooth curve, rather than alternate teeth set left and right.
this article is part of wikiproject fishes, an attempt to organise a detailed guide to all topics related to fish taxa.to participate, you can edit the attached article, or contribute further at wikiproject fishes.this project is an offshoot of the wikiproject tree of life start this article has been rated as start-class on the project's quality scale.
chisel ploughs are becoming more popular as a primary tillage tool in row-crop farming areas. basically the chisel plough is a heavy-duty field cultivator intended to operate at depths from 15 cm 6 in to as much as 46 cm 18 in . however some models may run much deeper. each individual plough or shank is typically set from nine inches 229 mm .
antarctic toothfish take a long time to mature 13 years for males, 17 years for females and once mature may not spawn every year, though the actual spawning interval is unknown. only a few antarctic toothfish with mature eggs have ever been caught, meaning knowledge is sparse about fecundity. they spawn sometime during winter.
based on the s. mirus material, the appearance of spathicephalus is unlike that of any other early tetrapod, with a flattened, square-shaped skull and jaws lined with hundreds of very small chisel-like teeth. however, spathicephalus shares several anatomical features with a family of stem tetrapods called baphetidae, leading most .
percoidea is a superfamily of fish of the order perciformes.the superfamily includes about 3,374 species. the nature and diversity of the perciforms make a general definition of the group difficult; the most common characters are found in the large families of sea basses, mackerels, perches, sunfishes, and others.
a chisel is a tool with a characteristically shaped cutting edge such that wood chisels have lent part of their name to a particular grind of blade on its end, for carving or cutting a hard material such as wood, stone, or metal by hand, struck with a mallet, or mechanical power.
the chisel-toothed kangaroo rat dipodomys microps is a species of rodent in the family heteromyidae.. there are 13 sub-species. saltbush leaves are a major dietary component, requiring specialized physiology to eliminate the salt while retaining water.