Several detailed studies using various methods to measure growth curves among known specimens have demonstrated that there is actually only one valid Pterodactylus species, P. antiquus.

Several other forms have been named, but are generally no longer considered valid.

Several techniques can be used by that system to extend KB by means of valid inferences.

Several years later, President Bill Clinton stated that Quayle made some valid points in his remarks.

Several possible species have been named, from Alberta ( Canada ), Montana ( USA ), and Baja California ( Mexico ), but only the two Canadian species are currently recognized as valid.

Several other living areas formed around the construction site in an area known as Shack Town, which did not have reliable access to electricity and the same amenities as the other towns.

Several of Ibadism's founding figures – in particular Jabir ibn Zayd – were noted for their hadith research, and Jabir ibn Zayd is accepted as a reliable narrator by Sunni scholars as well as by Ibadi ones.

Several different methods have been used to detect SV40 in a variety of human cancers, although how reliable these detection methods are, and whether SV40 has any role in causing these tumors, remains unclear.

Several other retrospective studies have found significant and reliable benefit for patients with isthmic spondylolisthesis, but none compared the results of surgery to natural history of the disorder.

Several rating scales for the screening and evaluation of bipolar disorder exist, such as the Bipolar spectrum diagnostic scale.

( Several Japanese computers had 63C09 CPUs clocked at 3. 58 MHz, the NTSC colorburst frequency, so the 3. 5 rating seems most likely ).

Several of Fulci's movies released in America were censored by the film distributor to ensure an R rating ( such as The Beyond, which was originally released on video in edited form as Seven Doors of Death ) or were released Unrated in order to avoid an X-rating ( as with Zombie and House by the Cemetery ) which would have greatly restricted the films ' target audiences to adults.

Several cuts were made to almost every violent scene in the film in order to get an R rating.

Several explicit scenes of gore were cut in order to avoid an X rating, including: Maddy's death, who originally had a sickle jammed through her neck ; Ben's death, which showed Jason mashing his head into a bloody pulp ; Kate's demise, which showed Jason ramming her in the eye with a party horn, the box set ( DVD ) release only shows Jason ramming her in the eye but quickly cuts to another scene before revealing the blood and gore gushing from her eye ; we see Eddie's head hit the floor ; a shot of Russell's face splitting open with a large blood spurt ; Dan's original death had Jason ripping out his guts ; Amanda Shepard's death originally showed Jason stabbing her from behind, with the resulting blade going through her chest and subsequent blood hitting Dr. Crews ; Dr. Crews's death showed Jason's tree-trimming saw violently cutting into his stomach, sending a fountain of blood and guts in the air ; Melissa's original death had Jason cleaving her head in half with an axe with a close-up of her eyes still wriggling in their sockets.

Several scales exist for measuring the severity of psoriasis.

Several scales have been developed in recent years to measure the various factors influencing the development and expression of sexual desire.

Several Wenger and Victorinox models feature a locking cutting blade secured by a slide lock that is operated with an unlocking-button integrated in the scales.

Several probabilistic models of Guttman implicatory scales were developed by Krus ( 1977 ) and Krus and Bart ( 1974 ).

Several techniques have been investigated to prevent this reaction, but few have been successful for long diamond machining processes at mass production scales.

Several non-melodic scales allow the music to wind down to a quiet throb in the orchestra on a dissonant chord, C-A ♭- D.

Several options currently exist for scales that acknowledge at least the two main underlying components in the scale ( aggression / submission and conventionalism ).

Several companies ( e. g., Intralytix, Novolytics, and Gangagen ), universities, and foundations across the world now focus on phage therapies.

Several of these formations are still active, though they now are armoured formations, for example Guides Cavalry in Pakistan.

Several ancient texts purporting to be the missing " Epistle to the Laodiceans " have been known to have existed, most of which are now lost.

Several directors associated with noir built now well-respected oeuvres largely at the B-movie / intermediate level.

Several pentaquark candidates were found in the early 2000s, but upon further review these states have now been established as non-existent.

Several months later, Kepler returned, now with the rest of his household, to Prague.

Several plants are now in operation in zones where Richter Scale readings may reach eleven.

Several fossil birds have been erroneously ascribed to the kingfishers, including Halcyornis, from the Lower Eocene rocks in Kent, which has also been considered a gull, but is now thought to have been a member of an extinct family.

Several of the brightest stars in the ' Plough ' of Ursa Major are former members of an open cluster which now form such an association, in this case, the Ursa Major moving group.

Several U. S. states now have reporting requirements for incidents of racial profiling.

Several other EMHs, now relegated to mining duty, experienced the novel.

Several layers of suburban municipalities now surround cities like Cleveland, Chicago, Detroit, Los Angeles, Dallas, Denver, Fort Worth, Houston, San Francisco, Sacramento, Atlanta, Miami, Pittsburgh, and Philadelphia.

Several A-Class tournaments, however, are now trialing electronic scoring equipment contained within competitors ' body protectors.

Several other significant changes took place due to the crisis: mankind discovered it could now tap into ultraplanar energies that were seen as magical forces, the stars were gone from the sky, dimensional nexi were uncovered and pacts with " demons " ( inhabitants of dimensions near in n-dimensional space to Tékumel's pocket dimension ) were made and a complex pantheon of " Gods " ( powerful extra-dimensional or multi-dimensional alien beings ) discovered.

Several communities later voted via referendum to de-merge and there are now a total of 15, leaving Montreal merged with the other 12.

Several new species have been discovered, and they are now grouped into three genera, with the two former members of the now defunct genus Galagoides returned to their original genus Galago:

Several of the state secondary schools now specialise: Astor College for the Arts ; Dover Grammar School for Girls is a selective specialist Humanities College ; Dover Grammar School for Boys, a selective Business and Enterprise College ; St Edmund's Catholic College for the Performing Arts ; and Dover Christ Church Academy, a specialist Maths, ICT and Music Academy.

Several elements from Arabian mythology and Persian mythology are now common in modern fantasy, such as genies, bahamuts, magic carpets, magic lamps, etc.

Several vendors ( Cisco, Juniper, Alcatel-Lucent, Huawei, Quagga ), now implement the below two extensions to stub and NSSA area and although not covered by RFC they are considered by many to be standard features in OSPF implementations.

Several of his albums have been released to coincide with large-scale outdoor events, and he is now perhaps as well known as a performer as a musician.

Several species, notably the largemouth and smallmouth basses, have been very widely introduced throughout the world, and are now considered cosmopolitan.

Several manufacturers now supply CMOS logic equivalents with TTL-compatible input and output levels, usually bearing part numbers similar to the equivalent TTL component and with the same pinouts.

Several notable leaders such as Chandra Shekhar Azad, B. R. Ambedkar, Shankar Dayal Sharma and Atal Bihari Vajpayee were born in what is now Madhya Pradesh.

Several of Gauthier's students are now important moral, political, and legal philosophers in the United States and Canada.