Middle Devonian scolecodonts from north Queensland

1 Pages·1994·0.25 MB·English

22 MEMOIRSOFTHEQUEENSLAND MUSEUM
MIDDLE DEVONIAN SCOLECODONTS FROM
LiteratureCited
NORTH QUEENSLAND. Memoirs of the Queensland Eller, E.R. 1941. Scolecodonts from the Windom, Middle
Museum35(1):22. V994:-Scolecodontswererecoveredfrom Devonian, of western New York, Annals Carnegie
limestonesoftheMiddleDevonianBurdekinFormation,Fan- Museum28:323-341.
ningRiverGroupcollectedatHorseshoeBend,DU424 104; 1961. Scolecodonts from well samples of the Dundee,
Dotswood1:100000topographicsheet.Terminologyfollows DevonianofMichigan. AnnalsCarnegieMuseum 36;
Sylvester(1959). 29-47.
Abbreviations: Heft, R-nght, M-maxiUa, UV- upper Sylvester, R. K. 1959. Scolecodonts from central Missouri
view, IV. lower (under) view. Most material is left in open JournalofPaleontology33:33-49.
nomenclaturegivenitspaucityandfragmentarynature.
CAlraasbselPlOitLeYsCHiHnAdeE.T18A79emendSylvester,1959 A3l3e0x0,CIS.oCuotohkBr&isSbuasnaen,TQuureneenr,slQaunede4ns10l1a,nAduMsutrsaeluima;,1P.DOe.ceBmo-x
ber1993.
Arabelliteshendersonisp. nov. (Fig.lF.G)
Etymology.ForR. A. Henderson,JamesCookUniversity.
Mnfenal. Holotype,QMF2751L
Description. Elongate LM1; prominent offset hook; dentary
occupiesmid 1/3 ofupperside, with 5small,closelyspaced
sharpdenticlesposteriorly inclined. Fossa 1/3 ofupperside,
marginbroken,withthinflange. Asaddle from theposterior
endofthehookbecomesmoreprominentoutward-anteriorly.
Remarks.Similario.4.cnnspicttousEWet,1961(M.Devonian,
DundeeLst„Michigan)butwithonly5denticlesanddentary
notextendingtoposteriormargin.Fossasmalleranddenticles
fewerthanA-hamihonensis(Siauffcr)(Sylvester,!959)from
the Late Devonian-Early Carboniferous Snyder Creek and
ChouteauFmns.,Missouri.
Arabellilessp.(Fig.lC)
Material. QMF275I6.
Description.SmallLMIorII;prominentfang,separatedfrom
7large,posteriorlyinclineddenticles.Bightstronglycrescen-
licouteranteriormargin tight.
Remarks.Lackofuppersurfacedetailpreventsassignment.
StaurocephalitesHinde,1879
Staurocephalitessp. a(Fig.IB)
Material.QMF215\5.
Description.Elongate,large(0.6mm)LMIIfragment;7sharp
denticles posteriorly deflected and shortening; probable
flangeonlongfossa.
Remarks. Fossa and sloped denticles indicate genus hui
speciescannotbeidentified.
Staurocephalitessp. b(Fig.ID)
M«/*r«ii\QMF275I4,
Description, Fragmentary*0.9mm,LMII;8inclined,shorten-
ingdenticlesonanabradedjaw;fossalong,marginbroken.
Remarks.Itsfragmentarynaturepreventsspecific:assignment.
ItisalargerformthanStaurucephalitessp.a.
Staurocephalitessp.c(Fig.IE)
Material.QMF2Z5\3,
Description.Large(0.9mmielongateRMII;long iossa, stout
fang; 1 1 moderately spaced, inclined, posteriorly shortening
deputies;first large,thirdslightlymoreinclined.
Remarks. Denticle inclinationandthe longfossa indicate the
genus,butitisnotspecifically identifiable.
IldraitesFiler,1936
Ildraitessp.(Fig.IA)
Materia/.QMF275IZ
Description. Large, RMII c 1 0mm long, Q.55mru wide at
midpoint Inner margin near straight; outer anterior margin
moderately convex; bight large, cresccntic; fossa large with
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