Herrerasaurus

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Quick Facts
NameHerrerasaurus
Diet
Weight350 kilos
Length6 meters
Height3 meters
Period
Herrerasaurus
Human

Herrerasaurus was a carnivore that lived during the Late Triassic Period some 228.7 million to 199.6 million years ago. Its fossils had been found in Argentina. It was one of the first dinosaurs to live, and was relatively advanced during its time. Herrerasaurus had characteristics of the later theropods, such as short forelimbs equipped with three recurved claws and sturdy hind legs for running.

It also had large teeth curved inward on the side of the lower jaw to hold prey. It was blade-shaped and had knife-like teeth that could turn you into meat. 

It lived in a humid environment, where there were fern groves and tall conifers in a cool environment. It hunted small animals by means of ambushes.

What did the herrerasaurus eat?

The herrerasaurus was a carnivorous dinosaur, and chased rhinososaurs, Thecodont reptiles and other early dinosaurs for a meal. 

How tall is a herrerasaurus?

The herrerasaurus was a lightly built bipedal carnivore with a long tail that grew to about 20 feet long, 10 feet tall.

When did the herrerasaurus live?

The herrerasaurus was a carnivore that lived during the Late Triassic period about 228.7 million to 199.6 million years ago.

Where did they live?

When did they live?

What was your diet?

Who discovered them?

What kind of dinosaurs are they?

What type of species are they?

How are they classified?

  • Reig, O.A. (1963). "The presence of saurischian dinosaurs in the "Ischigualasto Strata" (Upper Meso-Triassic) of the provinces of San Juan and La Rioja (Argentine Republic)". Ameghiniana 3 (1): 3-20. 
  • Sereno, P.C.; Novas, F.E.; Arcucci, A.B.; C. Yu (1988). "New evidence on dinosaur and mammal origins from the Ischigualasto Formation (Upper Triassic, Argentina)". Journal of Vertebrate Paleontology 8 (3, supplement): 26A. 
  • Sereno, P.C.; Novas, F.E. (1992). "The complete skull and skeleton of an early dinosaur". Science 258: 1137-1140. PMID 17789086. doi:10.1126/science.258.5085.1137. 
  • Paul, G.S. (1988). Predatory Dinosaurs of the World. New York: Simon and Schuster. pp. 248-250. ISBN 978-0-671-68733-5. 
  • Langer, Max C. (2004). "Basal Saurischia." In Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.), ed. The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 25-46. ISBN 0-520-24209-2. 
  • Sereno, P.C.; Novas, F.E. (1993). "The skull and neck of the basal theropod. Herrerasaurus ischigualastensis.". Journal of Vertebrate Paleontology 13: 451-476. 
  • Sereno, P.C. (2007). "The phylogenetic relationships of early dinosaurs: a comparative report". Historical Biology 19 (1): 145-155. doi:10.1080/08912960601167435. ISSN 0891-2963. 
  • McDowell, S.B., Jr.; and C.M. Bogert (1954). "The systematic position of Lanthanotus and the affinities of the anguinomorphan lizards". Bulletin of the American Museum of Natural History 105: 1-142.  The reference uses the obsolete parameter |coauthors= (help)
  • Novas, F. E. (1994). "New information on the systematics and postcranial skeleton of Herrerasaurus ischigualastensis (Theropoda: Herrerasauridae) from the Ischigualasto Formation (Upper Triassic) of Argentina". Journal of Vertebrate Paleontology 13 (4): 400-423. 
  • Sereno, P.C. (1993). "The pectoral girdle and forelimb of the basal theropod. Herrerasaurus ischigualastensis.". Journal of Vertebrate Paleontology 13: 425-450. 
  • Novas, 1993. New information on the systematics and postcranial skeleton of Herrerasaurus ischigualastensis (Theropoda: Herrerasauridae) from the Ischigualasto Formation (Upper Triassic) of Argentina. Journal of Vertebrate Paleontology. 13, 400-423.
  • Sereno, 1993. The pectoral girdle and forelimb of the basal theropod. Herrerasaurus ischigualastensis. Journal of Vertebrate Paleontology. 13, 425-450.
  • Sereno and Novas, 1993. The skull and neck of the basal theropod. Herrerasaurus ischigualastensis. Journal of Vertebrate Paleontology. 13, 451-476.
  • Sereno, P.C.; Forster, C.A.; Rogers, R.R.; Monetta, A.M. (1993). "Primitive dinosaur skeleton from Argentina and the early evolution of Dinosaurs". Nature 361 (6407): 64-66. doi:10.1038/361064a0. 
  • Rogers, R. R. R.; Swisher III, C.C.; Sereno, P.C.; Monetta, A.M.; Forster, C.A.; Martinez, R.N. (1993). "The Ischigualasto tetrapod assemblage (Late Triassic, Argentina) and 40Ar/39Ar dating of dinosaur origins". Science 260: 794-797. PMID 17746113. doi:10.1126/science.260.5109.794. 
  • Novas, F. E. (1986). "A probable theropod (Saurischia) from the Ischigualasto Formation (Upper Triassic), San Juan, Argentina". IV Argentine Congress of Paleontology and Biostratigraphy, Mendoza, November 23-27. 2: 1-6. 
  • Steel, R. (1970). "Part 14. Saurischia. Handbuch der Paläoherpetologie/Encyclopedia of Paleoherpetology". Gustav Fischer Verlag, Stuttgart: 1-87. 
  • Galton, P.M. (1973). "On the anatomy and relationships of Efraasia diagnoses (Huene) n.gen., a prosauropod dinosaur (Reptilia: Saurischia) from the Upper Triassic of Germany.". Palaeontological Zeitschrift 47 (3/4): 229-255. 
  • Paul, G.S. (1984). "The segnosaurian dinosaurs: relics of the prosauropod-ornithischian transition?". Journal of Vertebrate Paleontology 4: 507-515. 
  • Novas, F. E. (1989). "The tibia and tarsus in Herrerasauridae (Dinosauria, incertae sedis) and the evolution and origin of the dinosaurian tarsus". Journal of Paleontology 63: 677-690. 
  • Novas, F. E. (1992). "Phylogenetic relationships of the basal dinosaurs, the Herrerasauridae". Palaeontology 35: 51-62. 
  • Brinkman, D.B.; Sues, H.-D. (1987). "A staurikosaurid dinosaur from the Upper Triassic Ischigualasto Formation of Argentina and the relationships of the Staurikosauridae". Palaeontology 30: 493-503.  The reference uses the obsolete parameter |coauthors= (help)
  • Gauthier, J.A., Cannatella, D., Queiroz, K., Kluge, A.G., and Rowe, T. (1989), "Tetrapod phylogeny", in Fernholm, K. Bremer, & Jörnvall, H., ed, The Hierarchy of Life, Amsterdam: Elsevier Science Publishers B. V., pp. 337-353 
  • "The Nature of the Beast. The Dinosaurs!. Episode 3. 1990. 
  • Holtz, T.R., Jr; Padian, K. (1995). "Definition and diagnosis of Theropoda and related taxa". Journal of Vertebrate Paleontolology 15 (3, supplement): 35A. 
  • Bonaparte, J.F.; Pumares, J.A. (1995). "Notes on the first skull of Riojasaurus incertus (Dinosauria, Prosauropoda, Melanorosauridae) from the Upper Triassic of La Rioja, Argentina". Ameghiniana 32: 341-349. 
  • Rauhut, O.W.M. (2003). "The interrelationships and evolution of basal theropod dinosaurs". Special Papers in Palaeontology 69: 1-213. 
  • Bittencourt, J.; Kellner, W.A.. (2004). "The phylogenetic position of Staurikosaurus pricei from the Triassic of Brazil". Journal of Vertebrate Paleontology 24 (3, supplement): 39A. 
  • Langer, M.C; Benton, M.J. (2006). "Early dinosaurs: a phylogenetic study". Journal of Systematic Palaeontology 4 (4): 309-358. doi:10.1017/S1477201906001970. 
  • Irmis, Randall B.; Nesbitt, Sterling J.; Padian, Kevin; Smith, Nathan D.; Turner, Alan H.; Woody, Daniel; Downs, Alex (2007). "A Late Triassic dinosauromorph assemblage from New Mexico and the rise of dinosaurs". Science 317: 358-361. PMID 17641198. doi:10.1126/science.1143325. 
  • White, A.T.; Kazlev, M.A.. (2003). "Theropoda: Basal Theropods".. Palaeos.com. Archived since the original July 11, 2007. Accessed July 20, 2007. 
  • Forster, C.A.; Arcucci, A.B.; Marsicano, C.A.; Abdala, F.; May, C.L. (1995). "New vertebrate material from the Los Rastros Formation (Middle Triassic), La Rioja province, northwestern Argentina". Journal of Vertebrate Paleontology 15 (3, supplement): 29A. 
  • Arcucci, A. C.; Forster, C.; May, Abdala, F.; Marsicano, C. (1998). "A new ichnofauna from the Los Rastros Formation, Middle Triassic, in the Quebrada de Ischichuca Chica (La Rioja Province, Argentina)". Acta Geologica Lilloana 18: 152. 
  • Bakker, R.T.; Galton, P.M.. (1974). "Dinosaur monophyly and a new class of vertebrates". Nature 248: 168-172. doi:10.1038/248168a0. 
  • Bonaparte, J. F. (1976). "Pisanosaurus mertii Casimiquela and the origin of the Ornithischia". Journal of Paleontology 50: 808-820. 
  • Colbert, E.H. (1970). "A saurischian dinosaur from the Triassic of Brazil". American Museum Novitates 2405: 1-39. 
  • Long, R.A.; Murry, P.A.. (1995). "Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States". New Mexico Museum of Natural History and Science, Bulletin 4.: 1-254. 
  • Hunt, A.P.; Lucas, S.G.; Heckert, A.B.; Sullivan, R.M.; Lockley, M.G. (1998). "Late Triassic Dinosaurs from the Western United States". Geobios 31 (4): 511-531. doi:10.1016/S0016-6995(98)80123-X. 
  • Chatterjee, S.; Creisler, B.S. (1994). "Alwalkeria (Theropoda) and. Morturneria (Plesiosauria), new names for preoccupied Walkeria Chatterjee, 1987 and Turneria Chatterjee and Small, 1989". Journal of Vertebrate Paleontology (1): 142.  Text "volume14" ignored (help)
  • Kischlat, E.-E. (1999). "A new dinosaurian "rescued" from the Brazilian Triassic: Teyuwasu barberenainew taxon". 1st Simp. Brazil. Pal. Vert, Paleontologia em Destaque 14 (26): 58. 
  • Sereno, P.C. (1998). "A rationale for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria". Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 210 (1): 41-83. 
  • Gilmore, Charles W. (1920). "Osteology of the carnivorous dinosauria in the United States National Museum, with special reference to the genera. Antrodemus (Allosaurus) and Ceratosaurus". Bulletin of the United States National Museum 110 (110): 1-159. doi:10.5479/si.03629236.110.i.  Unknown parameter |hdl= ignored (help)
  • Gauthier, J.A.; Nesbitt, S.J.; Schachner, E.R.; Bever, G.S.; Joyce, W.G.. (2011). "The bipedal stem crocodilian. Poposaurus gracilis: inferring function in fossils and innovation in archosaur locomotion".. Bulletin of the Peabody Museum of Natural History 52 (1): 107-126. doi:10.3374/014.052.0102. Archived since the original September 24, 2015. 
  • Chatterjee, Sankar (1985). "Postosuchusa new Thecodontian reptile from the Triassic of Texas and the origin of Tyrannosaurs". Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 309 (1139): 395-460. Bibcode:1985RSPTB.309..395C. doi:10.1098/rstb.1985.0092. 
  • Benedetto, J.L. (1973). "Herrerasauridae, a new family of Triassic saurischians".. Ameghiniana 10 (1): 89-102. 
  • Galton, P.M. (1977). "On Staurikosaums priceian early saurischian dinosaur from the Triassic of Brazil, with notes on the Herrerasauridae and Poposauridae". Palaeontological Zeitschrift 51 (3): 234-245. ISSN 0031-0220. doi:10.1007/BF02986571. 
  • Brinkman, D.B.; Sues, H.D. (1987). "A staurikosaurid dinosaur from the Upper Triassic Ischigualasto Formation of Argentina and the relationships of the Staurikosauridae".. Palaeontology 30 (3): 493-503. Archived from the original December 8, 2015. Accessed April 10, 2019. 
  • Novas, F.E. (1992). "Phylogenetic relationships of the basal dinosaurs, the Herrerasauridae".. Palaeontology 35 (1): 51-62. Archived from the original December 8, 2015. Accessed April 10, 2019. 
  • Sereno, P.C. (1998). "A rational for phylogenetic definitions, with application to the higher-level taxonomy of Dinosauria". New Yearbook for Geology and Palaeontology - Abhandlungen 210 (1): 41-83. 
  • Langer, M. (2004). "Basal Saurischia." In Weishampel, David B.; Osmólska, Halzska; Dodson, Peter, eds. The Dinosauria (2nd ed.). Indiana University Press. pp. 40-42. ISBN 978-0-520-25408-4. 
  • Padian, K.; May, C.L. (1993). The Earliest Dinosaurs. In Lucas, Spencer G.; Morales, M., eds. "The Nonmarine Triassic." New Mexico Museum of Natural History & Science Bulletin 3. pp. 379-381. 
  • Novas, F.E. (1994). "New information on the systematics and postcranial skeleton of Herrerasaurus ischigualastensis (Theropoda: Herrerasauridae) from the Ischigualasto Formation (Upper Triassic) of Argentina". Journal of Vertebrate Paleontology 34 (4): 400-423. doi:10.1080/02724634.1994.10011523. 
  • Novas, F.E. (1996). "Dinosaur Monophyly." Journal of Vertebrate Paleontology 16 (4): 723-741. JSTOR 4523770. doi:10.1080/02724634.1996.10011361. 
  • Langer, M.C.; Ezcurra, M.D.; Bittencourt, J.S.; Novas, F.E. (2010). "The origin and early evolution of dinosaurs".. Biological Reviews 85 (1): 55-110. PMID 19895605. doi:10.1111/j.1469-185X.2009.00094.x. 
  • Nesbitt, S.J.; Smith, N.D.; Irmis, R.B.; Turner, A.H.; Downs, A.; Norell, M.A. (2009). "A Complete Skeleton of a Late Triassic Saurischian and the Early Evolution of Dinosaurs".. Science 326 (5959): 1530-1533. Bibcode:2009Sci...326.1530N. ISSN 0036-8075. PMID 20007898. doi:10.1126/science.1180350. 
  • Ezcurra, M.D. (2010). "A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny". Journal of Systematic Palaeontology 8 (3): 371-425. doi:10.1080/14772019.2010.484650. 
  • Alcober, Oscar A.; Martínez, Ricardo N. (2010). "A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina".. ZooKeys (63): 55-81. PMC 3088398. PMID 21594020. doi:10.3897/zookeys.63.550. 
  • Martinez, R.N.; Sereno, P.C.; Alcober, O.A.; Colombi, C.E.; Renne, P.A.; Montañez, I.P.; Currie, B.S. (2011). "A Basal Dinosaur from the Dawn of the Dinosaur Era in Southwestern Pangaea".. Science 331 (6014): 206-210. Bibcode:2011Sci...331..206M. ISSN 0036-8075. PMID 21233386. doi:10.1126/science.1198467. 
  • Bittencourt, J.S.; Arcucci, A.B.; Marsicano, C.A.; Langer, M.C. (2014). "Osteology of the Middle Triassic archosaur. Lewisuchus admixtus Romer (Chan~ares Formation, Argentina), its inclusivity, and relationships amongst early dinosauromorphs".. Journal of Systematic Palaeontology 0 (3): 189-219. doi:10.1080/14772019.2013.878758. 
  • Baron, M.G., Norman, D.B., and Barrett, P.M.. (2017). A new hypothesis of dinosaur relationships and early dinosaur evolution. Nature, 543: 501-506. doi 10.1038/nature21700
  • Colbert, E.H. (1970). "A saurischian dinosaur from the Triassic of Brazil". American Museum Novitates 2405: 1-39. 
  • Long, R.A.; Murry, P.A.. (1995). "Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States". New Mexico Museum of Natural History and Science, Bulletin 4.: 1-254. 
  • Hunt, A.P.; Lucas, S.G.; Heckert, A.B.; Sullivan, R.M.; Lockley, M.G. (1998). "Late Triassic Dinosaurs from the Western United States". Geobios 31 (4): 511-531. doi:10.1016/S0016-6995(98)80123-X. 
  • Chatterjee, S.; Creisler, B.S. (1994). "Alwalkeria (Theropoda) and. Morturneria (Plesiosauria), new names for preoccupied Walkeria Chatterjee, 1987 and Turneria Chatterjee and Small, 1989". Journal of Vertebrate Paleontology 14 (1): 142. doi:10.1080/02724634.1994.10011546. 
  • Kischlat, E.-E. (1999). "A new dinosaurian "rescued" from the Brazilian Triassic: Teyuwasu barberenainew taxon". Paleontologia em Destaque, Boletim Informativo da Sociedade Brasileira de Paleontologia 14 (26): 58. 
  • Ezcurra, M.D. (2010). "A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny." Journal of Systematic Palaeontology, 8: 371-425.
  • Sues, H.D. (1990). "Staurikosaurus and Herrerasauridae". In Weishampel, D.B.; Dodson, P.; Osmólska, H., ed. The Dinosauria. University of California Press. pp. 143-47. ISBN 0-520-06726-6. 
  • Hollocher, K.T.; Alcober, O.A.; Colombi, C.E.; Hollocher, T.C. (2005). "Carnivore coprolites from the Upper Triassic Ischigualasto Formation, Argentina: chemistry, mineralogy, and evidence for rapid initial mineralization". PALAIOS 20: 51-63. doi:10.2110/palo.2003.p03-98. 
  • Schmitz, L.; Motani, R. (2011). "Nocturnality in Dinosaurs Inferred from Scleral Ring and Orbit Morphology". Science 332 (6030): 705-8. Bibcode:2011Sci...332..705S. PMID 21493820. doi:10.1126/science.1200043. 
  • Bonaparte, J. F. (1982). "Faunal replacement in the Triassic of South America". Journal of Vertebrate Paleontology 2: 362-371. 
  • Bonaparte, J.F. (1979). "Faunas and paleobiogeography of the Mesozoic tetrapods of South America". Ameghiniana, Journal of the Asociación Paleontológica Argentina 16 (3-4): 217-238. 
  • Benton, Michael J. (1999), "Origin and early evolution of dinosaurs".in Farlow, James O.; Brett-Surman, M.K., eds, The Complete DinosaurIndiana University Press, pp. 204-215, ISBN 0-253-21313-4 
  • Parrish, J. Michael (1999), "Evolution of the archosaurs".in Farlow, James O.; Brett-Surman, M.K., eds, The Complete DinosaurIndiana University Press, pp. 191-203, ISBN 0-253-21313-4 
  • Rothschild, B., Tanke, D. H., and Ford, T. L., 2001, Theropod stress fractures and tendon avulsions as a clue to activity: In: Mesozoic Vertebrate Lifeedited by Tanke, D. H., and Carpenter, K., Indiana University Press, pp. 331-336.
  • Molnar, R. E., 2001, Theropod paleopathology: a literature survey: In: Mesozoic Vertebrate Lifeedited by Tanke, D. H., and Carpenter, K., Indiana University Press, pp. 337-363.
  • Sill, W.D. (1974). "The anatomy of Saurosuchus galilei and the relationships of the rauisuchid thecodonts". Bulletin of the Museum of Comparative Zoology 146: 317-362. 
  • Bonaparte, J.F. (1970). "Annotated list of the South American Triassic tetrapods". Gondwana Symposium Proceedings and Papers 2: 665-682. 
geological time 3

Fun Facts

  • Herrerasaurus was an advanced dinosaur during its time.
  • Herrerasaurus means "Herrera's lizard" after the rancher discovered the first specimen in 1958 in South America.
  • Herrerasaurus reproduced by laying eggs.
  • Herrerasaurus was one of the earliest dinosaurs and had many of the same characteristics as later theropods.
  • Herrerasaurus lived in a humid environment where there were fern groves and tall conifers in a cool environment.

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