Part II - State of New Jersey

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146 C13ETi\CE>OUS FOSSILStion. The inner surface of the alveolus is corered hy a white eonothecawhich is 0.25-0.5 mm. thick. Except for the above discussed longitudinaldorsal furrom and the sometimes preserved impressions of thechambers of the phragmaeone, the eonotheea appears to the nalted eyeto be quite smooth. In the majority of the guards it is destroyed, holx7-ever, with the exception of the apical part of the a1veo:ns. Thereforethe layers of tl~c guard are mostly immediately esposc
Sometimes the ventral fissure reaehes the surface of the guard at thelevel of the embryonic bulh or even somcwhat below this latter. Insome instances irregularly bent (see pl. SI): fig. 3a) or straight bottomsof ventral fissure running very ol)liquely ul)mard and forming angles ofonly 5-lj015-it11 tl~e inner xvall of the alveolus (see pl. 77, fig. 5e) dsooccur. All the extremes are connected by numerous transitions with oneanot,l~cr ancl with the al~ove (lcscribed predominant type of the outline.The median line ;11\~ays runs closer to the ventral side of the guard,being as a rule two-fifths of the thickness of the gnard away from thislatter. Its course is com~nonly quite to almost straight within the anteriort,hrec-quarters of the postalveolar part, of the guard hut it deviatesslightly toward t,llc median plane of the guard in the apicalquarter of the same. Therefore t,he rnrtcro nearly ;~l~vays lies withinihe median plane of the guard or eseeetlingly close to this latter.The alveolar fissure is always long in relation to the depth of theal~,eolus. In the majority of the guards studied it reaches well into theposterior third or quarter of the alreolns (pl. 79, figs. lc, 2, 3a, 6e, 7).The goar(ls in 11.11icl1 tltc alveolar fissure ends somewhat bclo~v tlle mi&dlc of the alveolr~s (sce pl. 76> fig. 2; pl. 77, fig. 2b) are uncommon, andthose in \rhieh the fissnrc (locs not reach t,he middle of the alveolus areexceerlingly rare. At the salne time the inst;~nces when the ventralfissure reachcs the snrfacc of the gnard only 3-6 mm. above the levelof the embryonic bulb are qnite comlnon (pl. 79, figs. lc, 2) ; sometimesthe rentri~l fissure even re:~cl~es the surface of the guard at the levelof the enlliryonic bulb.Jocf~lities, Geographicf~l a1uI Str(itigrnpkku1 Rang" Belo)rt~~mitellnaw~ericn~ra (Norton) v;lr. on~cricnna nov. var. forms from 60% to 95%of the populations of B. n~iiericana (Morton) in almost all belemnitecolleetions from Nev Jersey, Delam7are and Maryland which wercstnclied by the \vriter. Only the lot 174796 USNhl is dominated byt,r:~nsitional forms betv.ecn K. americnntb var. sz~bf11siforn1i.9 and var.longa. Only one gnarcl out of five can be referred to B. anrericana var.a)neric(~na in this lot.B. a)nericana va~.. a~nevi~(ina ;tplicars to be ahout equally nnmerousin the JIount Laurel sand and in the Navesink marl; its representativesfrom the two formations are indistingr~isl~able. It is possible,ho\vever, that extensive ,bed by l~e(l collecting woulcl show that specimensof 11. a)~~erieon~r from the hIo1unt La~~rel sand are somewhat moreslencler ancl possess longer, more acnte, and less distinctly mucronate;~l?ical ends of tl~c goartl, ;~nd have a smaller value of the Sehatsky Index,than thosc from the N;~vcsink marl.Tl~e geographic;~l range of n. anloricnnn var. antaricana appears tocoinei~le vith that of other describc~l val.ict,ies of the species.NEW JERSEY GEOLOGICAL SURVEY
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THE CRETACEOUS FOSSILS OF NEW JERSE
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PALEONTOLOQY SE&IE8Bureau of Geolog
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1i:i~grme 1,. liora, Chairnran ....
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The practical problems of publishin
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CRETACEOIJS QASTIIOl'ODS OF KE\\' J
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central apex which is elevated abov
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II~IFamilyRovrge in Kew Jorsey-\VOO
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and says that 'each rib is reflecte
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Margarites abyssina (Gabb) 1860Plat
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GASTROPODAthe two type specimens be
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GASTROPODA I :IGyrodes abyssina Wel
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diameter, 26 nim. ; height, 19 mm.;
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Endoptygma umbilicata (Tuomey) 1855
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GASTROPODA 1928'; number of volutio
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GASTROPODA 21Turritella quadrilirn
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GASTROPODA 23Turritella lippincotti
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GAYTIIOI'ODA 25Il'arritell~~ cf. je
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GASTROPODATurritella marshalltownen
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Range in New JerseufifERCHANTVIL1,E
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GASTROPODAnumber not determined, ve
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NAH : 34Range o~ctside New Jersq-De
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GASTROPODAwith moderately impressed
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GASTROPODA 37volution, causing the
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about six (estimated) ; very slight
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Range in New Jersey-WOODBURY: 18Typ
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Description.-"Shell of ~oedion~ siz
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cavity in the cast; aperture long a
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Family CypraeidaeCypmeu mortoni Gab
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eqnal intervals to those of the spi
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nodes; entire surface of the shell
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GASTROPODAthem. The sharply (lefine
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GASTROPODARange in Xew Jersey-MARSI
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GASTROPODAPyropsis iVaticoidcs Wli~
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Perissolax dubia (Gabb) 1860l'late
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GASTROPODB 61Family Fusiclae se~lsu
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53 111111.; heigllt of spire, 23 mn
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GASTROPODA 65Turbinella intermedia
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not so sharply defined as those abo
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GASTROPODA"Fasciolaria" sp.Plate 44
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Re~~~orlis.-Thiseems to be a lye11
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GASTROPODA 73Remarks.-This species
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or more may be counted on the lower
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OASTROPODAFamily NitridaePiestochil
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Range ontsirle Xew ,Jersey-Delaware
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GASTROPODAswollen or convex in the
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84 CRETACEOUS FOSSILSb1ississipl)i.
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GASTROPODA 85from the slvell of the
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Cancellaria smocki Tf'eller 1907Pla
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Range in New Jersey-NAVESINE : 41GA
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Type.-Crosswicks, N. J. ; ANSP 1877
Page 102 and 103: in length; very globose, the diamet
Page 104 and 105: GASTROPODA 95Cinulia naticoides (Ga
Page 106 and 107: Bulla macrostoma Gabb 1860Plate 64,
Page 108 and 109: 100 CRETACEOUS FOSSILS4 mm., and it
Page 110 and 111: 102 C1t.ErETACEVVS FOSSILSHyatt, th
Page 112 and 113: CRETACEOUS FOSSILS(7) Eutrephoceras
Page 114 and 115: 1OGC1l.ETACEOUS FOSSILSFIGURE 2Cros
Page 116 and 117: CRETACEOUS FOSSILSno strong feeling
Page 118 and 119: 110 CRETACEOIIS FOSSILSbIonnlonth g
Page 120 and 121: CRETACEOUS AMMONITES OF NEW JERSEYb
Page 122 and 123: Type.-Say's specimen mas figured by
Page 124 and 125: AMMONOIDEA 117Range outside New Jer
Page 126 and 127: Range in Xew Jersey-SAVESIXR: Xaves
Page 128 and 129: AMMONOIDEA 121t,at,c or coiled part
Page 130 and 131: Pach~rliseas COIII~!EZI~S (IIi~ll a
Page 132 and 133: Scnphites hippowepis (DeICay). Grab
Page 134 and 135: Deso.iptio~~.-'l'l~e fragment of a
Page 136 and 137: AMMONOIDEA 129Placenticeras placent
Page 138 and 139: Two of tile fragments survive in th
Page 140 and 141: ornamentation as well as of other c
Page 142 and 143: The record of B. (T.) dentato-carin
Page 144 and 145: Sphenodiscus beecheri HyattPlate 75
Page 146 and 147: 1-10 CRETACEOUS FOSSlLSproduced on
Page 148 and 149: 142 CRETACEOUS FOSSILSBelen~nites o
Page 150 and 151: ClZETACEOUS FOSSILSlorn and narrom,
Page 154 and 155: CRETACEOUS FOSSILSBelemnitella amer
Page 156 and 157: 15nCRETACEOTJS FOSSILSclnding the h
Page 158 and 159: 152 CRETACEOUS FOSSIIJSlonga in the
Page 160 and 161: CRETACEOUS FOSSILSicana and more ra
Page 162 and 163: CRETACEOUS FOSSILSfissure is long a
Page 164 and 165: 158 CRETACEOUS FOSSILSis rounded an
Page 166 and 167: CRETACEOUS FOSSILSStrnfiyropl~icrrl
Page 168 and 169: THE UPPER CRETACEOUS DECAPOD CRUSTA
Page 170 and 171: Tribe NEPRROPSIDEA StebbingFamily N
Page 172 and 173: spicuous gastroorbital groove (d).
Page 174 and 175: CRUSTACEA 169proximal occludent too
Page 176 and 177: ears a line of prominent sockets. L
Page 178 and 179: CRUSTACEA 1 i 3average size but it
Page 180 and 181: Rcn~arks.-The type series consists
Page 182 and 183: he rostral horn as from the second
Page 184 and 185: Canal about % mile east of Su~rrmit
Page 186 and 187: CRUSTACEA 181Distribution in h'ew J
Page 188 and 189: CKUSTACEANeocomian of I+anee, in ge
Page 190 and 191: CRUSTBCEA 185Re111nr1;s.-The specim
Page 192 and 193: spine is the shorter and slenderer.
Page 194 and 195: DECAPODA incerlae sedisXanthias? le
Page 196 and 197: CRUSTACEA 191trends forward and out
Page 198 and 199: 194 CRETACEOIJS FOSSILSBfERCHANTVTL
Page 200 and 201: 196 CRETACEOUS FOSSIIISPlesiosat~kC
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198 CRETACEOUS FOSSILSCretaceous, a
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CKETLICEOUS FOSSILSPHYLUM ANNELIDAC
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202 CRETACEOUS FOSSILSgins. Hinge a
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204 CRETACEOUS FOSSILSXamed in hono
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CRETACEOUS FOSSILSClass GastropodsC
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APPENDIX DTable sho\ving distributi
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APPENDIX D 211PELECYPODA -Continued
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APPENDIX D 21:jPELECYPODA -Conti?~t
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APPENDIX D 215PELECYPODA-ContinuedA
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APPENDIX D 21.7C. traasvers~rs (Gab
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APPENDIX D 219PELECYPODA -Continued
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222 CRETACEOUS FOSSILST. enerinodes
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APPENDIX D 223A. aresaria (Morton)r
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GASTROPODA-C~~~~+LU~~Odo~ltofasrrs
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AMMONOIDEABacz~litcs ovuttis Say X
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CRUSTACEA-Co~t iwt~etl.~\'ecrocnrci
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CI.ARK. \VILLIA>l H. HACC;. R. >I..
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~ ~I,YELL, CHARLES, 1845. 'The Cret
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~ -~~. 1926. The Mchozoic Rockc irt
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PlatesNEW JERSEY GEOLOGICAL SURVEY
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NEW JERSEY GEOLOGICAL SURVEY
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PLATE 48NEW JERSEY GEOLOGICAL SURVE
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PLATE ,'QNEW JERSEY GEOLOGICAL SURV
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PLATE 57r-NEW JERSEY GEOLOGICAL SUR
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NEW JERSEY PLATE 65 GEOLOGICAL SURV
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INDEXAActaeon ovoidea Gabb ........
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.Page PlateLiopeplum cretaceum (Con
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INDEXPage PhteTylosaurus rapax Hay
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