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TABLE SHOWING DISTRIBUTION OF THE SPECIES IN THE TRENTON BEDS AT JACKSONBURG—LOCALITY 174A. 
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LOCALITY 174 A. 1|2/3}4/5|6/7)|8 | 9 |L0/11/12}13/14)15)16/17|18)19)20/21)22)23)24)25|26/27)/28 29/30/31)32 33 34'35 3637 38/39 40/41/42 43\44 45)46/47/48 49160 51/52)5 
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1. Hindia parva UlIr....--....s1--:sseeeeeeeee 5,9 |] S38) Beat eG ico) bet Meal eee ecal cbe onal ees. <l lal bass Bralleeal nen re Se Ba a Beal (eer eal e-4l ber ar eee sates « [oe | cays | ele atte] ences teil serail eee teat el Ren aca | ea te 
2. Streplelasma corniculum Hall...... postoe LOD, || AElIBB5 eo ea eealzcel ovelees| eel soa Reet yl hee lias reser Pe ee Bea) Bn) eee) edd (See on ae eee ec Pol eee esalteccs ocr cca laced heeled eal ceclisee| tar 
3. Nyctopora billingsi Nich ..........s:seseeeese fave|eee|ooeoee|oes[ere| eoeere|eee|eee|ees|oee[ece]eeeloeelenate® : 
4, Romingeria? trentonensis 0. Sp... seeereeee |eoe|-es|eoe|seefeceleee|oee[erelaeeleesleee]ens] X 
5. Actinostroma trentonensis 0. SP...-ee.serseees Joon Feel sae eel| acelin! wel wocl|ece st alas < 
6 
7 
8 
9 
\54 65 6 
| | — ] —- | — 
Prasopora simulatrix Ulr......e-seeee eee Fe.) ae| Mee b8s| [oad eee food] eo ec foal foc) sad [as ee ee Fellscalls0 
Phylloporina fenestrata (Hall) ...-.cesccsee fres|ere|ee|orslecsfere|oee|erefere] X 
Lingula riciniformis Hall......ssscovicseeeses feseleselece|ens{ece|ocs|eceleee|ore[er|ece|ees|eea|oes Palisen| (cco soe 
. Schizocrania filosa, (Hall)......cscccecseececes [ece|eee|are|ee ace] see feee|eee|ers|eee|ere| oon 225||or6| B28 boc [251325] bool |oce asa) feed |oalle 
10. Orbiculoidea lamellosa (Hall). ...00..cccreree |.s.lece|eee{eeefeve| «-leeelecs[ece|ore|oes|ons|eas lane seal eiae| eas ee 
11. Rafinesquina alternata (Emm )....... 5 s Balleon eval oot Hs [eres steal ae) be 
12. Plectambonites sericeus (SOW.)....-++ssseeeer |ese Leal eel neel| Coates seeles ell acal| veel OMel| zee alceel ses 
13. Strophomena incurvata (Shep ) .....-ceceeeee |eeefeeefersfens|ece|eee|eee|ere[eee|ecsfons 
RA SUOrihistricenania Con s.se secesssasss-ecenssseeila~.| ses) etcloes| i |lvm=|cne||ase|re-|ansil'ce0]|0aleos| «cs | se mer 
15. Plectorthis plieatella (Hall). ..... Eenswewese Wales cl sel ee eee |Cecileoy'l sonilewallvcel|aexi|caellsacttines lamtil oes Rail alee heal el Beale alpzsite.sy[2. fee fendl asetls lle ba te ae |aa9 ore fe.2Beclie-<lfaeil>-slfecipollb olaa- 
16. Platystrophia biforata (Schl ). ....-..++-+++- By «| ave} iee'|etilieeo|eos| een Weel wesl| veel osallase| see exellensl| eel eleal lava) eas cir ate then tea fe fra oie || cal Beal feel or eel fecal ar eepface ats | coll Noelle 
17. Dinorthis pectinella (Hmm.) .-.-+++r«s00 Pecell ctl aectecel eee eres} Web [eel ee sl| otal eel etl eal al el ie 
18. Dalmanella testudinaria (Dal.)..... 551326) Peal |eoo| aos] Bes cod ocd Reb local Bad eal lass) een Boal aan 
19. Dalmanella subceequata (Con.)....... bo || aif 28] elle] Bre [be hea lasses fest elf el lan eealfocel icon 
20. Scenidium anthonensis Sard........ srrioncded Felloss eel |2-9 : 
HaHa: 
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see lecelene 
21. Camarella inornata 0. Sp.....01-0e008 oes Peet Ren lisekiltaaell eee! cea ateall eisell oe'| 
22. Parastrophia hemiplicata (Hall).......--00e. |...|ec+|eee|eee|o-:|oee/eee|soe[eee|-es[eeefess[ore 364|l5s5)! 2a) lo50 793 eca}| 2-4 Ibeel one |oa sHl535 lees | cage 
23. Bhynchotrema incequivalvis (Castel)... 0... |...)s0.fee.|oe-[ece|ees|see/eee[ecefecs|owe| o-[ooe 2 lowell owe SQ] ESS [BR 
24, Zygospira recurvirostris (Hall).............-. Beal evstees| ealcealeset teal Seale <| sell ves] eea||cce deal van] Ses MEX wales geal eee Sao) bales ee Bol e.el baci sa tt > s\ poe aleeteel>er olay Gnalacl ih alis< 
| 
25. Ctenodonta nasuta (Hall) ..............00000- fel toeta| sce Sac les 1-4 toe lee Is 9p al ae fedlloeeleaals sael|cecileae| cee eaaltces| nea] aes Rs Wars | acl Pee eel (Se eee esol al iccallscal ice eal sa. 
26. Ctenodonta jerseyensis 0. Sp....-+-.se0ee-ee0e. | X | 
27. Cleidophorus neglectus Hall .......... ....++ Be | ssl sete cel real iceul| eal small nell amen echoes S25ilS5o Sealioo, analjocol|acel|sac Malixsalieesl eye Peal cal salle 
28. Cyrtodonta canadensis Bill........csseceseeee By «| Neola nealf teil seileSelloaattencliess| cee ame inal recline |x aX 
29. Whitella subtruncata (Hall) ............0066 «I hs es es FT fr ke UD (| a walisalirealicne ide ra | Pema et ced |e MRR a fel eed Pall cafacalt eal has Baas a eee 
BU Me UCD aETah AUNA CON) eeramtecseeiee amas rametel ity ll seel ieel esl hetllvetl| nerd |iSeal|inell coall eweliss|easl cess eel nee' ees cesfane[ece[eee[eceteoefere|ecefonr| K [oeefeee| X] K] Kove] R] Kl. c. [os feel erelenslere X|... 
31. Modiolopsis jerseyensis 1. Sp.....+.+++ nobles oan ES 
32. Modiolopsis depressa n. sp... -..- geoantieaess 54d) [bee |05|l6s5} fcr [oo loco edol bee lbaal Peel laeel ase ecellecefoce lore Fab | See [lees |e etl etl wal eran fate | es teal | ee seelersleee{ece]ene] X 
33. Orthodesma canaliculatum Ulr.....s..0.-0+ | hoalienay eae loan swe leteal| ewrd|nmsyars|| ecerecell seer seelarcree [tae aoe tes BH bce Ie faced Cos inet iecal ect iacsallec| oo Seal Gea tee lee eset leet wel eealte 
34. Goniophora carinatus (Hall)... -.......-..... |... he ee STA ea Fl ec te feo |e veleoel raalliveall’s wel =o ell eee ree [ieee teste | sere | data aleiG 
DUM EAT Chimaceia Paleleforsie: (KLAN) cos wersver|Sei|issilese]ecelascless ceelecos|s=<| sce sceleas|ace|seclevelecalutelevaiese a Ve le Se eis ol ARB bea 
36. Cyrtolites ornatus var minor U. & §......... |... etal teal an 'wa| oom atoel| ses teri cal ears| eel se| a Seal Des [teal teeta we leecl eoell eval eal aural eel ema eae fo Alpi eel (ele poses lose| Bec iane 
37. Protowarthia cancellata (Hall)..... yaa neaenonl ey scr Mee add Mae Sele spe lehallexcleeelacallecalisac|ecel sealteoal eel bar : Bee Poe Mead ins ime bre 5-€l leet, a pa | ot | = Wcrdlinat [ras 4 ie lap ete as Soles 
38. Tetranota bidorsata (Hall)..ce-ssssssseesessee | ale eyes als cys ealeeal cota ee Ln ae voalsdl steal alesse a eect levels |ossloge| oxileaalecal pea eonTeerpeee les 
39. Bucania punctifrons Emm.........secer eevee 286) fed! /3c6) [651 Bal leod |heral Idea} 105d /as6| aca Ise see [peel neal asl lee x x x/x|... x of pelea x|x|...{...[../x Ae TEI lash 
40. Raphistoma peracuta U. &S .....sesccnceeeee oi eee leee! bella Bool ec ee Stes bal a |e 1a eC Gal taenl aa ia 
41. Lophospira medialis U. &S. ...1...200 bc800G | [o6] [sed locollagal 8a) a cel eins] joel ee face isaet Seis ieee loca fo ” x 28 “ 
Ae eMMO ROB OM OLOWENT LONGI tse were ste eth antendl te sleee|earlece| ere|ssalsen|seclaee| eX Peel ae el eae Bales |e Rei Ron aus Baal a aie 
Armee OR UAL CULOA ELAI 1) eemeGan ene ene er ease oul lite laceleeeltcal ees aceon ancl eca| imal nes |eeleas lees c x pes | Sq] [p.ellls.€ |} 9.< x 
44. Hormotoma salteri Ulr......s000.sscecesseeees peal Seales ena isailh all axalltea |eaalees lees ale (COS cea ea la ix |x alse dex lows oselige lest x x|x x x|x|...J. peal x|_ 
45, LEccyliomphalus trentonensis (Con.).......++« |so{eee\se-|+++|ece|eeelooe|ece|eceleee|ons malta Pelee ele realagilie. als Sa aslee alee lest | cath celicel ea fee ee lle he 
46. Conularia trentonensis allie Neen Fo | Sh ol eel fa RP en Fae cealscoslese|ss [vee Bs (odo) facie! jadi! fours ee oes = ccclece ie weal ett] eceleceleve|see|coe|see|scelece| seeleve| ese ceeleee 
47. Orthoceras SennMENGATD (Hall) Heide t Ke “Siecle mete alia bch ccs] scelece| secleceiers Bon} joey jens scelene eee ceel coe! & |aacl|ore seelsee|vcel-e«|ceclece|cve|ese coaleve| ese aoe|ece 
48. Harpina ottawensis (Bill)... ....0...s00se00 ‘elPele|E 
49. Trinucleus concentricus (Haton)..........-. iilleeal coaleaaiises|enelleeltcecl see eegilean [ue earl h * so] 
BO." “Teotelus gigas, De Kay....:.-..cc.1-sc000-+<+s ba lac joel eel 655] rag] eel noc sel eel P-2l om (ser bsnl ee APA > allel heed [>.<] ase|fo-s [eset lie<| >-o1)-< [fos [acallesH!2¢1 eel arctto-<l15-<])>-215-6 15 sal olfria focal |oo Xj. 
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