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Topic: Diplodocid

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	Diplodocid (Site not responding. Last check: 2007-10-17)
		Diplodocids, or members of the family Diplodocidae, are sauropod dinosaurs such as the Diplodocus and the Apatosaurus.
		They had short legs, making them the "dachshund" of giant dinosaurs; and their rear legs were longer than than front legs, giving their back a distinctive downward slope towards the neck.
		There is some circumstantial evidence supporting this as well: A number of diplodocids have been found with fused or damaged tail vertebrae (bones in the spine), which may be a symptom of cracking their tails.
	diplodocid.iqnaut.net (459 words)

	Palaeos Mesozoic: Jurassic: Late Jurassic Period (The Malm Epoch)
		The sauropods continue to flourish and to diversify, as the older Mid-Jurassic cetiosaurids are replaced by a diverse Late Jurassic fauna of camarasaurs, Brachiosaurs, and diplodocids.
		In this megafauna sauropods predominated, and were primarily of the diplodocid and camarasaurid families, with a few haplocanthosaurs (especially early on) and the occasional huge Brachiosaur (in fact the Brachiosaurs were bigger here than anywhere else).
		The theropod Ceratosaurus, the diplodocid Barosaurus, and the ornithopod Dryosaurus occur on both continents.
	www.palaeos.com /Mesozoic/Jurassic/LateJura.html (1613 words)

	Diplodocid Sauropods
		Supersaurus is a diplodocid sauropod; a group of sauropods with exceptionally long tails that end in a thin "whip-lash".
		Earlier authors had thought that Supersaurus was related to the long-necked diplodocid Barosaurus, but the new specimen makes it clear that Supersaurus is actually more closely related to Apatosaurus.
		One line of evidence for this supposed relationship was a series of very Barosaurus-like tail vertebrae that had been assigned to the original (or "type") specimen of Supersaurus from Utah.
	www.skeletaldrawing.com /sauropods/sauropods.htm (479 words)

	Ivars Peterson's MathTrek -Whips and Dinosaur Tails
		Since the late 19th century, when the fossil remains of the Apatosaurus (formerly known as Brontosaurus) and other family members were first uncovered, observers have often likened the tails to whips and have speculated about what purpose those tails might have served.
		Some paleontologists suggested that diplodocid tails could have been used as defensive weapons, for example.
		Interestingly, paleontologists have found that vertebrae in the transition zone between a tail's stiff muscular base and the flexible whiplash section are sometimes fused together--suggesting the repeated application of a large stress to this region.
	www.maa.org /mathland/mathtrek_3_20_00.html (882 words)

	Lovelace's 2003 SVP abstract (Site not responding. Last check: 2007-10-17)
		Rib pneumatocoels are described from a new specimen of the diplodocid dinosaur Supersaurus vivianae.
		The discovery of costal rib pneumatocoels in a derived diplodocid suggests costal pneumatization evolved at least twice within sauropodomorphs.
		Lovelace, David, Wahl, William Jr., and Hartman, Scott, 2003; Evidence for costal pneumaticity in a Diplodocid dinosaur (Supersaurus vivianae), Journal of Vertebrate Paleontology, Vol.
	www.wyomingpaleo.com /bio/pubs/2003abstract.html (231 words)

	Lec 10 - SAUROPODOMORPHA
		The fore limbs of most prosauropods are at least 2/3 the length of the hind limbs, as in the later diplodocid sauropods (which are considered to be obligatory quadrapeds).
		B and D, the camarasaurid skull type and the diplodocid skull type, respectively, have traditionally been described as the two basic sauropod skull types.
		The peg-like teeth of diplodocids, the spatulate teeth of camarasaurids, and the chizel-like teeth of brachiosaurids were well suited to cropping vegetation, but not of chewing vegetation.
	www.wvup.edu /ecrisp/lec11-sauropodamorpha.html (2787 words)

	Hairy Museum of Natural History » Sizing up the Super-Sauropods (revised)
		Diplodocids were a family of lean, long and low sauropods, whose members include Apatosaurus (75 feet long), Diplodocus (83 feet long), Barosaurus (93 feet long), and Seismosaurus (110 feet long).
		But Puertasaurus was a titanosaur, a group that had a wider, heavier, and stockier build than their distant diplodocid cousins.
		The diplodocid Seismosaurus hallorum dorsal 3 (from the Jurassic exhibit at the NMMNHS),
	www.hmnh.org /archives/2006/08/05/sizing-up-the-super-sauropods (1627 words)

	Dinosaur names dinosaur pictures dinosaur fossil dinosaur extinction theories dinosaur skeletons dinosaur anatomy ...
		Saltasaurus was a small sauropod of the late Cretaceous, characterized by a diplodocid-type head (with blunt teeth only in the back of the mouth) and was the first exposed with small bony plates entrenched in its skin.
		The bony plates (osteoderms) have since been found in other titanosaurids, and a crest of scutes has also been discovered running down the back of diplodocids.
		When the plates of a saltosaur were at first found independently of skeletal remains, they were unspecified to be from an ankylosaurian, whose plates they resemble.
	www.rareresource.com /saltasaurus.htm (271 words)

	Dinosaurs \| American Museum of Natural History
		On display are impressions made by thickened, conical scales from the tail of a sauropod dinosaur, probably a diplodocid.
		The animal may have had a series of ridge of these scales running the length of its back from head to tail.
		This similarity led early researchers to speculate that diplodocids used their tails for slashing predators.
	www.amnh.org /exhibitions/dinosaurs/sauropod/strangetale.php (315 words)

	BONES (Site not responding. Last check: 2007-10-17)
		The Diplodocids are a Sauropod family that includes Diplodocus and Apatosaurus.
		At least three articulated and one associated foot of a Diplodocid have been discovered at the Quarries to date.
		What appears to be a potentially complete Diplodocid was found with the feet.
	server1.thermopwy.net /bhbf/bones2april1999.html (1584 words)

	Apatosaurus Dinosaur @ Planet Dinosaur
		Even though not quite the biggest of all when compared to Antarctosaurus, Seismosaurus, Supersaurus, and Ultrasaurus, was still an enormous, quadripedal, herbivore dinosaur.
		It was a member of the diplodocid family of long necked sauropods with whip like tails.
		Its 20-foot-long neck supported a rather small head and its brain was about the size of a large apple.
	planetdinosaur.com /dinosaurs_a2z/A/apatosaurus.htm (330 words)

	Late Jurassic Dinosaurs - ZoomDinosaurs.com
		Barosaurus- A diplodocid sauropod (a very long-necked, whip-tailed plant-eater) 60 feet (20 m) long from western North America and east Africa, 156-145 mya.
		Dicraeosaurus - a diplodocid sauropod (whip-tailed, long-necked plant-eater), 45 ft (13 m) long from East Africa, 156-150 mya.
		Cetiosauriscus- a diplodocid sauropod (whip-tailed, long-necked plant-eater) 50 feet (15 m) long from England, 181-169 mya.
	www.zoomdinosaurs.com /subjects/dinosaurs/mesozoic/jurassic/lj.shtml (1612 words)

	brachiosaurus ceratosaurus
		Brachiosaurs shared the Mesozoic with the giant diplodocid Apatosauruses, Diplodocuses and Barosauruses, but they are significantly different from the diplodocids.
		The family continues to be important in North America in the Early Cretaceous, when the diplodocids disappear from the fossil record.
		This pattern implies that the brachiosaurs were less specialized in their feeding habits than the diplodocus family, as less specialized feeders commonly are spread wider and are less vulnerable to extinction.
	www.dinosaurcollector.150m.com /Brachiosaurus.html (366 words)

	ISGS: Did dinosaurs grow to an unlimited size?
		Most dinosaurs (both large and small) seem to have maximum sizes (ie what we believe are adults).
		I am aware that some sauropods (ie the long necks) grew very large and that for example some of the diplodocids got very large.
		Supersaurus for example is basically a large diplodocid of up to nearly 134 feet in length and those studying it say it was not adult as it had only partially fused vertebrae in the pelvis (they fuse in adults).
	www.isgs.uiuc.edu /faq/dino-faqs/pdq50.html (529 words)

	The Dinosaur Museum in Blanding, Utah
		Recent discoveries of fossilized sauropod skin (diplodocid) impressions reveal a very different appearance for these dinosaurs.
		The fossilized skin demonstrates that a median row of spines was present over the tail and may have continued along the body and neck.
		Czerkas published a preliminary report in Geology in December of 1992, and then a complete report in Gaia in December of 1994.
	www.dinosaur-museum.org /research.htm (93 words)

	Did Dinosaurs Break the Sound Barrier?
		"The geometric scaling of vertebral dimensions found in the various diplodocids strongly suggests that any of them, or non-diplodocid sauropods with 'whiplash' tails, would share this capability."
		With one side-to-side flick, the researchers determined, a wave of energy could accelerate through the length of one of the tapering, segmented tails, gaining momentum to propel the tip of the tail to velocities of more than 750 miles an hour, faster than the speed of sound.
		"We must confess that it is pleasing to think that the first residents of Earth to exceed the sound barrier were not humans, but rather the diplodocid sauropods," Myhrvold and Currie concluded.
	partners.nytimes.com /library/cyber/week/120297dino.html (1290 words)

	Amazon.ca: Barosaurus: Books: William Lindsay (Site not responding. Last check: 2007-10-17)
		Tyrannosaurus, a companion volume, repeats much of the same information while focusing on the giant meat-eater.
		Fact section; list of sauropod displays in US museums; world map of diplodocid fossil finds; glossary; index.
		Be the first person to review this item.
	www.amazon.ca /Barosaurus-William-Lindsay/dp/1564581233 (191 words)

	Wann Langston: ZoomInfo Business People Information (Site not responding. Last check: 2007-10-17)
		LOSILLASAURUS Losillasaurus was a huge, plant-eating dinosaur with a long neck, long, whip-like tail, small head, and bulky body.
		This diplodocid sauropod lived during the late Jurassic to early Cretaceous periods, roughly 145 million years ago.
		Incomplete fossils were found in the Collano Rock Formation, Spain.
	www.zoominfo.com /directory/Langston_Wann_31697269.htm (1039 words)

	Matthew F. Bonnan Publications and Abstracts (Site not responding. Last check: 2007-10-17)
		Bonnan, M. The presence of a calcaneum in a diplodocid sauropod.
		Bonnan, M.F. Separating size from shape: using thin-plate splines to evaluate humerus functional morphology in Apatosaurus, Diplodocus, and Camarasaurus.
		Bonnan, M. The functional morphology of the diplodocid and camarasaurid sauropod humerus: a comparative approach using shape analysis techniques.
	www.wiu.edu /users/mfb100/pubs.html (515 words)

	Research
		Estimating nuchal ligament depth in hadrosaurid dinosaurs: The return of the pencil-necked hadrosaurs?
		Stance and carriage in Brachylophosaurus: Evidence from articulated specimens.
		A new diplodocid braincase (Dinosauria: Sauropoda) from the Morrison Formation of north-western Wyoming.
	www.skeletaldrawing.com /bio/research.htm (525 words)

	DESCRIPTION AND PRELIMINARY TAPHONOMY OF THE PARTIAL SKELETAL REMAINS OF A JUVENILE DIPLODOCID SAUROPOD FROM THE ... (Site not responding. Last check: 2007-10-17)
		The bones of the juvenile are associated with the scattered remains of a single adult diplodocid sauropod which has also been identified as Diplodocus.
		The quarry is located on the western flank of the San Rafael Swell and the bones are stratigraphically 124 meters (407 ft.) below the base of the Lower Cretaceous Buckhorn Conglomerate Member of the Cedar Mountain Formation.
		All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.
	gsa.confex.com /gsa/2002NC/finalprogram/abstract_32101.htm (440 words)

	Whatever happened to Ultrasauros? (Site not responding. Last check: 2007-10-17)
		Linda and I also gave a poster at SVP regarding these taxa.
		The story on these taxa is: the holotype dorsal vertebra of Ultrasauros macintoshi (BYU 9044) clearly belongs to a LARGE diplodocid while the referred scapulocoracoid (BYU 9462) is brachiosaurid.
		However, by referring the Ultrasauros type dorsal to Supersaurus many of the Dry Mesa mysteries (like the BIG pelvis) were solved.
	www.dinosauria.com /jdp/misc/ultra.htm (394 words)

	SAUROPODS
		Sauropods can be divided into 6 different groups or Families.
		I've seen Mamenchisaurus classified as a Diplodocid and a Euhelophid.
		You may have seen different sauropod classifications with some of the sauropods in different groups other than the ones I have here.
	www.monsters4u.com /dinosaurs/sauropods.shtml (507 words)

	[No title]
		One of two touch screens running the "Necks in Motion" interactive kiosk program
		Touch screen interactive showing two diplodocid sauropods (the robust Apatosaurus and the more gracile, longer necked, but surprisingly less flexible Diplodocus) and a modern giraffe for comparison.
		The range of motion can be explored using the controller in the lower right, plus zoom and rotation of the viewpoint.
	www.cs.uoregon.edu /~kent/DinoMorph/AMNH/index.html (815 words)

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