 (1997) pointed to features of the pelvis and ankle suggesting that this was an immature individual, and could therefore have grown to even a larger size in maturity. Specimen NMMNH P-4666, which consists of only a pubis, was referred to this genus by Hunt in 1994.

Classification
In 1994 Adrian Hunt, in his unpublished thesis, described and named this material "Revueltoraptor lucasi" which is now considered a nomen nudum. Carpenter officially described and named UCM 47221, Gojirasaurus quayi in 1997 and classified it as a coelophysoid. The original remains attributed to this dinosaur included a serrated tooth, a cervical rib, two anterior dorsal ribs, one posterior dorsal rib, a right scapula, two gastralia, four vertebrae, one anterior chevron, a right pubis, a left tibia, and one metatarsal. Tykoski and Rowe (2004) and later Carrano et al. (2005) agreed that Gojirasaurus is more derived than Dilophosaurus However, later study by Nesbitt et al. (2007) showed that the vertebrae actually belonged to the rauisuchian Shuvosaurus, and the pubis and tibia belonged to another coelophysoid, indistinguishable from the contemporary Coelophysis, making the status of Gojirasaurus as a valid genus dubious.

Distinguishing anatomical features
According to Nesbitt et al. (2007), Gojirasaurus can be distinguished based on the fact that its tibia is more robust than that of its relative Coelophysis. Mortimer (2012) has proposed that the observed difference in the leg bone might be just size-related, and not a true apomorphy. Rauhut (2003) attempted to diagnose this genus based on the fact that the mid/posterior dorsal vertebrae had taller neural spines than those observed in other coelophysoids. However, the reassignment of the dorsal vertebrae on which the diagnosis was based would render it invalid.

Paleoecology
The only known specimen of Gojirasaurus was discovered in the Cooper Canyon Formation of the Dockum Group near Revuelto Creek, Quay County, in New Mexico. This genus was discovered in 1981, in gray carbonaceous mudstone deposited during the Norian stage of the Late
(1997) pointed to features of the pelvis and ankle suggesting that this was an immature person, and could consequently have grow to even a larger size in adulthood. Specimen NMMNH P-4666, which consists of entirely a pubis, was referred to this genus by Hunt in 1994. 

 Classification 
 In 1994 Adrian Hunt, in his unpublished thesis, describe and named this material " Revueltoraptor lucasi " which is nowadays considered a nomen nudum. Carpenter officially identify and named UCM 47221, Gojirasaurus quayi in 1997 and classified it as a coelophysoid. The original cadaver attributed to this dinosaur included a serrated tooth, a cervical rib, two anterior dorsal ribs, one posterior dorsal rib, a right scapula, two gastralia, four vertebrae, one anterior chevron, a correct pubis, a left tibia, and one metatarsal. Tykoski and Rowe (2004) and later Carrano et al. (2005) agreed that Gojirasaurus is more derive than Dilophosaurus However, later study by Nesbitt et al. (2007) showed that the vertebrae actually belong to the rauisuchian Shuvosaurus, and the pubis and tibia belonged to another coelophysoid, indistinguishable from the contemporary Coelophysis, making the status of Gojirasaurus as a valid genus dubious. 

 spot anatomical features 
 According to Nesbitt et al. (2007), Gojirasaurus can be distinguished based on the fact that its tibia is more full-bodied than that of its proportional Coelophysis. Mortimer (2012) has propose that the observed difference in the leg bone might be just size - related, and not a true apomorphy. Rauhut (2003) try to diagnose this genus establish on the fact that the mid / posterior dorsal vertebrae had improbable nervous spine than those observed in other coelophysoids. However, the reassignment of the dorsal vertebrae on which the diagnosis was based would render it invalid. 

 Paleoecology 
 The only known specimen of Gojirasaurus was discover in the Cooper Canyon Formation of the Dockum Group near Revuelto Creek, Quay County, in New Mexico. This genus was discovered in 1981, in gray carbonaceous mudstone deposited during the Norian stage of the Late
 (1997) plinted to features of tht pelvis and anklg wuggesving thzt this das an immature individual, aid ciuld ukerefore have grown go even a larger wize un maturitb. Specimcu NMMHM P-4666, wkirh consists of pnly a pubhs, was referreg go this genus by Hunt in 1994.

Classificatijn
In 1994 Acrlan Hunt, in hif unkubjishsd thesis, described and named this materiel "Revueltoraptpr lucasi" which is now condideged a nomen nudum. Farpenter odficyqlly describdd and namtd UCM 47221, Gojitasaurus quayi in 1997 and classifiea it cs a coelopyywoif. The originel remwins attribubvd to tvis dinpsaur included a vereated tooth, a cervican rib, two anterior dorsal rhba, one posterior dirwal rhb, a rigfr szaphle, tso gashramia, four vsrtebrae, onw anterior chevron, s wpbht pubis, a meft tybya, and one metatarsal. Tykoski and Rowe (2004) ans later Carrano et al. (2005) qgreed that Gojirasautus is morq derived than Dilophosaurus However, later study ty Neacitu cb al. (2007) sjowed that the vertebrae actually belonged to fht rsuisuchian Shuyosaurus, and the pibls wnd tibia belunged ck znother coelophysold, indiftingyishable srom the contemporary Coelophysus, making thv stqtus of Gojirasaurbs as a valib genux duboous.

Distinguishing anatumiczl features
Wccording go Nesbitt et al. (2007), Gpjhrasaurus can be distinguifhed basev on che fact thaj its tybia is moge rongst than that of ihs repadive Coeloohysis. Mortimer (2012) has proposed tiet the observgd gifxerence nn the leg bone migrt be just sizg-related, cnd nog a true aiomorphy. Cauhut (2003) atteipted to diagtlse this genns based jn tye fqct thag the mid/posteroor dorsal vertebraw had taller neurak skihes than those ibstrced in other cpeluphrslivs. Horaver, the reavsigvmevy of ghe dorsal yergebrse on which the diagtosia was based would tekder it ibvalid.

Pajeoecology
The only known specimtn of Jojiraraurux wws discovered in the Cooper Cahyon Formwtijn of the Doskum Group near Xevuelto Creek, Quay County, in New Mexico. This genus was diwcovered in 1981, in grai csrbonaceous mudseone depovited during the Noruan stage of the Kate
(1997) pointed to features of the pelvis suggesting this was immature individual, and even larger size in Specimen NMMNH P-4666, consists of only a pubis, was to this genus by Hunt in 1994. Classification In 1994 Adrian Hunt, in unpublished thesis, described and named this material "Revueltoraptor lucasi" which is now considered nomen Carpenter described named UCM 47221, Gojirasaurus quayi in 1997 and classified it as a coelophysoid. The original remains to this dinosaur included a serrated tooth, a rib, two anterior dorsal one posterior dorsal rib, a scapula, gastralia, four one chevron, right pubis, a tibia, and one metatarsal. Tykoski and Rowe (2004) and later Carrano et al. (2005) agreed that Gojirasaurus more derived However, later by et (2007) showed that actually belonged to the rauisuchian Shuvosaurus, and tibia belonged to another coelophysoid, indistinguishable from contemporary Coelophysis, the status of Gojirasaurus as a genus dubious. Distinguishing anatomical features According to Nesbitt al. (2007), Gojirasaurus can be distinguished based on the fact that its tibia is more that of its relative Mortimer (2012) has that observed in leg bone be just size-related, and not a true apomorphy. Rauhut (2003) attempted diagnose this genus based on the fact that the mid/posterior had neural spines than observed in other coelophysoids. the of the dorsal vertebrae the was it Paleoecology only known specimen of was discovered in the Cooper Formation of the Dockum County, in New Mexico. This genus was discovered 1981, in gray carbonaceous mudstone deposited during Norian stage of the Late
 (1997) pointed to features of the pelVis and anklE suggEstIng ThAt thIs waS an immature indIViduAl, and could therefore havE growN tO Even A LaRger sIze in maTUrITY. SpEcImEn NmMnh P-4666, Which ConSists of Only a pubis, Was ReFerred to this GEnUs by Hunt in 1994.

claSsification
IN 1994 AdRian HuNt, In hIS unpuBliShed tHesis, dEScribeD and named ThIS materIAl "RevueLTOrAptoR lucasi" which is now COnSIdered a nomen nuDum. CarPeNTeR OFfiCiaLly describEd And naMEd UCM 47221, GoJIrASAUruS Quayi in 1997 and claSsified it as A CoeLophysOiD. ThE OriginAl remAiNS atTributed to tHis dInosaur inCluded A SerrateD Tooth, a cErvicaL riB, twO antERiOr DorSaL RibS, OnE poSTerIor dorsaL rIb, A righT scaPULA, Two gAstRaliA, four Vertebrae, one aNteRior CHevRon, a rIght pUbis, A lEft tiBia, and One meTaTarsal. Tykoski anD RowE (2004) and later carRaNo eT aL. (2005) agreED that GOjiRasAurus is More derIVed ThAN dIlOphosaurus However, lAtER StUdy by NesBitt et AL. (2007) sHoWEd that thE vErtEbraE ACtualLy beLOnGed to the RauisuCHiAn shuvosaUrUs, and tHe PubIs aNd tibIA belOnged tO another CoeloPHysoid, indistinGUishable from tHE cONTeMPoraRy COelophysis, mAkinG The sTatuS Of gojIRasauRus as A vALiD Genus dubious.

DistingUiShing aNatomIcal features
ACcording to nESBitt et al. (2007), gojiRAsAUrus can be distiNguisHed based on THe fact thAt its Tibia is mOre robust THAn that of Its RelAtiVe COELoPhysis. MortimeR (2012) HAs prOpOsed thaT thE observEd dIffEreNce In The leg bonE might be JuSt SiZe-RelAted, aND not a truE aPomOrPhy. rauhuT (2003) AttempTed to DiagNoSe THis Genus baSEd ON The fAcT tHat tHe mId/PosteRior DOrsAl verteBrae had taLleR NeurAl SpInes thaN those observeD iN other coelOpHysOids. HoWEVer, the reAssignment of the dorsal veRTebrae oN whIch thE diaGnosis was BasEd woulD reNDer it iNvalid.

paleoEcOloGY
the onLY KnOwn SpEcimen of GoJIRasAurus WaS disCovered In the Cooper Canyon FORmaTion of the DockUm GRoup NEAr revUElTO CrEeK, quaY cOunty, in New MexicO. This genus WaS DiScovered in 1981, IN grAy CarbonaCeous muDstonE DepositEd during tHe Norian sTaGe of THE LaTe
 (1997) pointed to feature s of the p elvis  an d a nk le s ugge sting that thi s  was  an immature individua l, an dc ould th erefo re have gr o w n t oev enal ar ger s ize  in mat urity. Spe cim en  NMMNH P-466 6 ,which cons ist s of only apub is, wa sref e rredtothisgenusb y Hunt  in 1994. 
C lassif i cationI n  1 994Adrian Hunt, in h i su npublished the sis, d es c ri b e d a ndnamed this  m ateri a l "Revu e lt o r a pto r  lucasi" whic h is now co n sid ered a  n ome n  nudum . Car pe n ter  officially  des cribed an d name d  UCM 47 2 21, Goj irasau rus  qu ayii n19 97an d  cl a ss ifi e d i t as a c oe lo physo id.T h e orig ina l re mains  attributed t o t hisd ino saurinclu dedaserra ted to oth,acervical rib, t wo a nterior d ors al  ri bs , one poster ior  do rsal ri b, a ri g htsc a p u la , two gastralia, f ou r ve rtebrae,  one a n te ri o r chevro n,  arigh t pubis , al ef t tibia,  and o n eme tatarsa l.  Tykos ki  an d R owe ( 2 004)  and l ater Car ranoe t al. (2005) a g reed that Goj i ra s a ur u s is  mo re derivedthan Dilo phos a ur usH oweve r, la te r  s t udy by Nesbitt et a l.  (2007 ) sho wed that thevertebraea c t ually be long e dt o the rauisuch ian S huvosaurus ,  and the  pubi s and ti bia belon g e d to ano the r c oel oph y s oi d, indistingu i s habl efrom th e c ontempo rar y C oel oph ys is, makin g the st at us  o fGoj irasa u rus as a  v ali dgen us du b ious.
Dist ingu is hi n g a natomic a lf e atur es 
A ccor din gto Ne sbit t  et  al. (2 007), Goj ira s auru sca n be di stinguished b as ed on thefa ctthat i t s  tibia i s more robust than that of itsrel ative  Coe lophysis.  Mo rtimer  (2 0 12) ha s prop osedth att h e obs e r ve d d if ference in t heleg b on e mi ght bejust size-related, and  not a true a pom orph y .  R auh u t( 200 3) att e m pted to diagnos e this gen us ba sed on the fac tthat th e mid/p oster i or dors al verteb rae had t al lern e ura l spines t han thos e observe d  in o t he r coe lop hysoid s.  Ho wever , ther eas signm ent of  t he dor sal v er tebrae o n which the diagnosis w as bas ed wo uld  render i t i n val id.

Pale oeco logy
The o nly  kn own s pec i men o f Go j ir asa u rus w as d i scoveredi nthe C oo per CanyonF o r mat ion o f t h e Dock um G roup near Revuelt o  Creek, Quay C ount y ,  in  Ne w  Mex ic o. This genuswas  d i s coveredin  1981, in g ray carb on a ceous  mudst one de posited d ur i ng the  Nor ian  stage of  th eL ate
 (1997)_pointed to_features of the pelvis_and ankle_suggesting_that this_was_an immature individual,_and could therefore_have grown to even_a larger size_in_maturity. Specimen NMMNH P-4666, which consists of only a pubis, was referred to this_genus_by Hunt_in_1994.

Classification
In_1994 Adrian Hunt, in his_unpublished thesis, described and named_this material_"Revueltoraptor lucasi" which is now considered a nomen_nudum._Carpenter officially described_and named UCM 47221, Gojirasaurus quayi in 1997 and_classified it as a coelophysoid. The_original remains attributed_to_this_dinosaur included a serrated_tooth, a cervical rib, two anterior_dorsal ribs, one posterior dorsal rib,_a right scapula, two gastralia, four vertebrae,_one anterior chevron, a right pubis,_a left tibia, and one_metatarsal. Tykoski_and Rowe (2004) and later_Carrano et al._(2005) agreed_that Gojirasaurus is_more derived than Dilophosaurus However, later_study by Nesbitt_et al. (2007) showed that the_vertebrae_actually belonged to_the_rauisuchian_Shuvosaurus, and_the pubis and_tibia_belonged to_another_coelophysoid, indistinguishable from the contemporary Coelophysis,_making_the status of Gojirasaurus as a valid_genus dubious.

Distinguishing anatomical features
According_to_Nesbitt et al. (2007),_Gojirasaurus can be distinguished based_on the fact that its tibia_is more_robust than_that of its relative Coelophysis. Mortimer (2012) has proposed that the_observed difference in the leg bone_might be just size-related,_and not_a_true apomorphy. Rauhut_(2003)_attempted to_diagnose this genus based on the fact_that the_mid/posterior dorsal vertebrae had taller neural_spines than those observed_in_other coelophysoids. However, the reassignment of_the dorsal vertebrae on which the_diagnosis was based would render_it_invalid.

Paleoecology
The_only known specimen of Gojirasaurus_was discovered in the Cooper Canyon_Formation of the_Dockum Group near Revuelto Creek, Quay County,_in_New Mexico. This genus was discovered_in_1981, in gray carbonaceous mudstone deposited_during_the_Norian stage of the Late