Question: What is the species type of this early herbivorous dinosaur that was the subject of a paper written by Matt J. Wedel?

full_context: Document 1: Araripesuchus wegeneri: Araripesuchus is an extinct genus of notosuchian crocodyliform that lived in Gondwana during the Cretaceous Period. The genus includes at least five species found throughout Western Africa and South America. The relationship of the individual species within this genus is hotly debated, specifically, the placement of Araripesuchus wegeneri. "A. wegeneri" is a small bodied crocodyliform characterized by relatively elongate limbs, an upright gait, and marked heterodonty. The tooth morphology, when combined with tooth wear and orientation, suggests that this animal may have been an omnivore or herbivore. Additionally, the gracile limbs and their orientation imply that this was a terrestrial animal. These features demonstrate that "Araripesuchus wegeneri" stands in stark contrast to its modern-day relatives, crocodiles and alligators.
Document 2: Parksosaurus: Parksosaurus (meaning "William Parks's lizard") is a genus of hypsilophodont ornithopod dinosaur from the early Maastrichtian-age Upper Cretaceous Horseshoe Canyon Formation of Alberta, Canada. It is based on most of a partially articulated skeleton and partial skull, showing it to have been a small, bipedal, herbivorous dinosaur. It is one of the few described non-hadrosaurid ornithopods from the end of the Cretaceous in North America, existing around 70 million years ago.
Document 3: Iguanodontia: Iguanodontia (or iguanodonts) is a clade of herbivorous dinosaurs that lived from the Middle Jurassic to Late Cretaceous. Some members include "Camptosaurus", "Callovosaurus", "Iguanodon", "Tenontosaurus", and the hadrosaurids or "duck-billed dinosaurs". Iguanodontians were one of the first groups of dinosaurs to be found. They are among the best known of the dinosaurs, and were among the most diverse and widespread herbivorous dinosaur groups of the Cretaceous period. Derived iguanodontians (such as "Muttaburrasaurus" and many ankylopollexians) were generally large animals, and some (such as "Shantungosaurus", which measured up to 50 ft (15 m) in length and weighed up to 8 tons) equaled the largest carnivorous dinosaurs in size.
Document 4: Lambeosaurus: Lambeosaurus ( ; meaning "Lambe's lizard") is a genus of hadrosaurid dinosaur that lived about 75 million years ago, in the Late Cretaceous period (Campanian) of North America. This bipedal/quadrupedal, herbivorous dinosaur is known for its distinctive hollow cranial crest, which in the best-known species resembled a hatchet. Several possible species have been named, from Canada, the United States, and Mexico, but only the two Canadian species are currently recognized as valid.
Document 5: Kevin Padian: Kevin Padian (born 1951) is a Professor of Integrative Biology at the University of California, Berkeley, Curator of Paleontology, University of California Museum of Paleontology and President of the National Center for Science Education. Padian's area of interest is in vertebrate evolution, especially the origins of flight and the evolution of birds from theropod dinosaurs. He served as an expert witness for the plaintiffs in the "Kitzmiller v. Dover Area School District" trial, and his testimony was repeatedly cited in the court's decision.
Document 6: Lida Holmes Mattman: Graduated with a M.S. in Virology from the University of Kansas and a Ph.D. in Immunology from Yale University. Mattman has taught Immunology, Microbiology, Bacteriology, Virology and Pathology. She worked for 35 years in these fields at various schools and institutions including Harvard University, Howard Hughes Institute, Oakland University and Wayne State University. She was a Professor Emeritus in the Department of Biological Sciences at Wayne State University in Detroit where she was engaged in research and lecturing. She has served as President of the Michigan Branch of the American Society for Microbiology, as Chairman of the Medical Division of the Michigan Academy of Sciences, and held various offices in the local chapter of Sigma Xi.
Document 7: Matt Welsh (computer scientist): Matthew David "Matt" Welsh is a computer scientist and software engineer at Google. He was the Gordon McKay Professor of Computer Science at Harvard University and author of several books about the Linux operating system, several Linux HOWTOs, the LinuxDoc format and articles in the Linux Journal.
Document 8: Michael P. Taylor: Michael P. Taylor (born March 12, 1968) is a British computer programmer with a Ph.D in palaeontology. To date, he has published 18 paleontological papers and is co-credited with naming three genera of dinosaur ("Xenoposeidon" in 2007 with Darren Naish, "Brontomerus" in 2011 with Matt J. Wedel and Richard Cifeli, and "Haestasaurus" in 2015 with Paul Upchurch and Phil Mannion).
Document 9: Opisthocoelicaudia: Opisthocoelicaudia is a genus of sauropod dinosaur of the Late Cretaceous Period discovered in the Gobi Desert of Mongolia. The only species is Opisthocoelicaudia skarzynskii. A well-preserved skeleton lacking only the head and neck was unearthed in 1965 by Polish and Mongolian scientists, making "Opisthocoelicaudia" one of the best known sauropods from the Late Cretaceous. Tooth marks on this skeleton indicate that large carnivorous dinosaurs had fed on the carcass and possibly had carried away the now-missing parts. To date, only two additional, much less complete specimens are known, including a part of a shoulder and a fragmentary tail. A relatively small sauropod, "Opisthocoelicaudia" measured about 11.4 m in length. Like other sauropods, it would have been characterised by a small head sitting on a very long neck and a barrel shaped trunk carried by four column-like legs. The name "Opisthocoelicaudia" means "posterior cavity tail", alluding to the unusual, opisthocoel condition of the anterior tail vertebrae that were concave on their posterior sides. This and other skeletal features lead researchers to propose that "Opisthocoelicaudia" was able to rear on its hindlegs.
Document 10: Allosauridae: Allosauridae is a family of medium to large bipedal, carnivorous allosauriod neotheropod dinosaurs from the Late Jurassic and Early Cretaceous. Allosauridae is a fairly old taxonomic group, having been first named by the American paleontologist Othniel Charles March in 1878. Constituent groups include "Allosaurus", "Erectopus", and "Saurophaganax". Many taxa, including "Antrodemus" and "Epanterias", have been at some point included as members of Allosauridae. Originally described in 1870, Antrodemus has since been identified as a nomen dubium, and generally collapsible with "Allosaurus". "Epanterias" has also been subject to some controversy shifting from a separate genus, to an especially large "Allosaurus fragilis" Allosarids are characterized by an astragalus with a restriction of the ascending process to the lateral part of the bone, a larger medial than lateral condyle, and a horizontal groove across the face of the condyles. Allosauridae is an extremely widely dispersed family, with members discovered on every continent except Antarctica and India.
Document 11: Nopcsaspondylus: Nopcsaspondylus (meaning "Franz Nopcsa's vertebra", in reference to the original describer) is a genus of rebbachisaurid sauropod dinosaur (a type of large, long-necked quadrupedal herbivorous dinosaur) from the Cenomanian-age (Upper Cretaceous) Candeleros Formation of Neuquén, Argentina. It is based on a now-lost back vertebra described by Nopcsa in 1902 but not named at the time. The specimen had a small vertebral body and large hollows, now known to be typical of rebbachisaurids.
Document 12: Walter Alvarez: Walter Alvarez (born October 3, 1940) is a professor in the Earth and Planetary Science department at the University of California, Berkeley. He is most widely known for the theory that dinosaurs were killed by an asteroid impact, developed in collaboration with his father, Nobel Prize winning physicist Luis Alvarez.
Document 13: Michael D. Swords: Michael D. Swords is a retired professor of Natural Science at Western Michigan University, who writes about general sciences and anomalous phenomena, particularly parapsychology, cryptozoology, and ufology, editing the academic publication "The Journal of UFO Studies". He is a board member of the J. Allen Hynek Center for UFO Studies.
Document 14: Aquilops: Aquilops is an early herbivorous ceratopsian dinosaur dating from the Early Cretaceous of North America, approximately 108 million to 104 million years ago. The type species is A. americanus.
Document 15: Matt J. Wedel: Mathew John Wedel is an American paleontologist. He is associate professor at the Western University of Health Sciences Department of Anatomy in California. Mathew studies sauropods and the evolution of pneumatic bones in dinosaurs. At Western University, Mathew teaches gross anatomy. He has authored papers naming "Aquilops" (2014), "Brontomerus" (2011), and "Sauroposeidon" (2000).
ground_truth: A. americanus