Detlev Thies | Leibniz Universität Hannover (original) (raw)

Papers by Detlev Thies

Alle Autoren sind für ihre Beiträge selbst vera ntwortlich Druck: OfTsetdruckerei Jahnke, Hannove... more Alle Autoren sind für ihre Beiträge selbst vera ntwortlich Druck: OfTsetdruckerei Jahnke, Hannover Die Zeltschrift erscheint 6 x jährlich. Der Abonnementspreis beträgt DM 26,und wird bei Lieferung des ersten Heftes des Jahres fällig. (Der volle Mitgliedsbeitrag einschließlich Abonnement beträgt DM 35,-) Zahlungen auf das Konto Marie-Luise Flörke Volksbank Hildesheim -Leinetal ec Nordstem men BLZ 259 900 11 Konto-Nr. 16 15237 900 Zuschriften und Anfragen sind an die Geschäftsstelle zu richten. Manuskripteinsendungen für die Zeitschrift an die Geschäftsstelle erbeten Nachdruck, auch auszugsweise, nur mit schriftlicher cenehmigung des Herausgebers. O Arbeitskreis Paläontologie Hannover 1990 tssN 0177-2147 18. Jahrgang 1990, Heft 4 INHALT: Aufsätze: 69 Detlev Thies: Die Entdeckungsgeschichte der Dinosaurier Fundstellenberichte: 92 Die Grenzschichten Oberen Jura des Süntel (Scho/D.2.) Neue Funde / Funde unserer Mitglieder: 88 Grammocero,s striatulum-Graphoceras concaaum -Ludwigia lateco stata -Kepplerites sp.-Lopha marshi -Astracanthus sp.

The study by SCHMITZ et al. (1991) of 87 Sr/ 86 Sr ratios in various Phanerozoic fishes led to th... more The study by SCHMITZ et al. (1991) of 87 Sr/ 86 Sr ratios in various Phanerozoic fishes led to the idea of testing this method on fish faunas from the Upper Jurassic of Germany and France. These faunas consist of microvertebrate remains. The Sr isotope results for the Kimmeridgian data from northern Germany are consistent with faunistic evidence that implies an environment of lower marine salinity. The high radiogenic content of the material from the Boulonnais, northern France (Kimmeridgian to Tithonian) contradicts the faunistic implications that point more probably to a genuine marine environment for the sampled periods. The possibilities of postmortem alter-ation of the measured 87 Sr/ 86 Sr ratios are discussed.

One specimen each of Dapedium caelatum QUENSTEDT 1858, D. pholidotum (AGASSIZ 1832), and D. punct... more One specimen each of Dapedium caelatum QUENSTEDT 1858, D. pholidotum (AGASSIZ 1832), and D. punctatum AGASSIZ 1835 from the Posidonia shale (Lower Jurassic, lower Toarcian) of Southern Germany were studied. The study revealed the existence of an independent intercalar (D. punctatum), a paired vomer (D. caelatum), an inde-pendent dentary and splenial (D. caelatum, D. pholidotum), and branchial tooth plates (D. caelatum, D. pholidotum, D. punctatum) in the skeletons of late Liassic specimens of the genus Dapedium. Also, in the specimen of D. pholidotum, the coronoids constitute part of the formation of the lateral cover of the lower jaw. In this specimen the marginal row of teeth of the mandible is formed mostly by the lateral coronoid teeth.

Progress in Natural Science, 2007

Paläontologische Zeitschrift, 1995

The Roemer-Museum in Hildesheim houses ample material of Late Cretaceous mosasaurs from North Ame... more The Roemer-Museum in Hildesheim houses ample material of Late Cretaceous mosasaurs from North America. This article includes a brief description of the two most important specimens reidentified as Platecarpus ictericus (Cove 1871) and Tylosaurus proriger (COPE 1869). The original labels show that the material was collected by the STERNBEROS in the Upper Cretaceous of Kansas in 1904. It was sold to the Roemer-Museum in 1905. K u r z f a s s u n g : Das Roemer-Museum beherbergt umfangreiches Material von nordamerikanischen Mosasauriden der Oberkreide. Es werden Kurzbeschreibungen und Neubestimmungen der zwei wichtigsten Stficke -Platecarpus ictericus (COPE 1871) und Tylosaurus proriger (COPE 1869) -gegeben. Die Original-Etiketten belegen, dat~ das Material um 1904 von den SXE~EROS in der Oberkreide von Kansas gesammelt worden ist und ein Jahr sfiter nach Hildesheim gelangte.

Paläontologische Zeitschrift, 1989

Kurzfassung: 12 Neoselachier-Z~ihne aus dem Unter-und Mitteljura (Toarcium bis Callovium) Nordwes... more Kurzfassung: 12 Neoselachier-Z~ihne aus dem Unter-und Mitteljura (Toarcium bis Callovium) Nordwestdeutschlands werden beschrieben. Ein Zahn geh6rt in die Verwandtschaft der jurassischen Neoselachier-Familie Protospinacidae (Uberordnung Squalomorphii?), ...

Paläontologische Zeitschrift, 1992

Kurzfassung: Die Diagnose der fossilen Neoselachiergattung Palaeospinax EGrRTON 1872 wird verbess... more Kurzfassung: Die Diagnose der fossilen Neoselachiergattung Palaeospinax EGrRTON 1872 wird verbessert. Aus dem Posidonienschiefer (Unter-Toarcium) von Sfiddeutschland wird eine neue Art dieser Haie als Palaeospinax politus n. sp. beschrieben. Sie unterscheidet sich ...

Paläontologische Zeitschrift, 1987

K urz fa ssung: In der unterkretazischen -Nordsee,,, welche Teile NW-Europas bedeckte, traten dre... more K urz fa ssung: In der unterkretazischen -Nordsee,,, welche Teile NW-Europas bedeckte, traten drei Arten von hexanchiden Haien auf: Notidanoides pockrandti WARD & THIES 1987, Notidanodon lanceolatus (WOODWARD 1886) und Notorynchus aptiensis (PIcTET 1864). Eine ...

Paläontologische Zeitschrift, 2005

A new genus and species of catshark (Neoselachii, Carcharhiniformes, Scyliorhinidae) -Bavariscyll... more A new genus and species of catshark (Neoselachii, Carcharhiniformes, Scyliorhinidae) -Bavariscyllium tischlingeri n. gen. n. sp. -is described from the Late Jurassic (Tithonian) Plattenkalke of South Germany. The new taxon is known from a single articulated skeleton having the skull, the trunk and all of the fins preserved. The position of the first dorsal fin in relation to the pelvic fins and the dental morphology shows that the specimen belongs into the neoselachian family Scyliorhinidae. Two isolated tooth crowns from the Kimmeridgian of North Germany are identified as Bavariscyllium sp. and represent the oldest unambigious fossil record of the Scyliorhinidae known so far.

Paläontologische Zeitschrift, 1993

... Dr. DETLEV THIES, Institut fiir Geologie und Pal~iontologie, Universit~it Hannover, Callinstr... more ... Dr. DETLEV THIES, Institut fiir Geologie und Pal~iontologie, Universit~it Hannover, Callinstrafle 30, D-3000 Hannover 1, Dr. ARNOLD MOLLER, Geologisch-Pal~ion-tologisches Institut, Universit~it Miinster, Corrensstraige 24, D-4400 Miinster. ... 90 Detlev Thies and Arnold Miiller ...

Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen, 2010

Abstract: Two new lamniform sharks, Leptostyrax stychi sp. nov. and Protolamna sarstedtensis sp. ... more Abstract: Two new lamniform sharks, Leptostyrax stychi sp. nov. and Protolamna sarstedtensis sp. nov., based on isolated oral teeth from the Early Barremian (Early Cretaceous) of NW Germany are described. The new species are the earliest representatives of the corresponding ...

Journal of Zoological Systematics and Evolutionary Research, 2009

Notorynchus are sister groups and both taxa together form the sister group o f the Recent Heptran... more Notorynchus are sister groups and both taxa together form the sister group o f the Recent Heptran- ... The Hexanchiformes or Cow Sharks are represented in Recent oceans by three genera, ie Hexunchus Rafinesque, 1810, Notorynchus Ayres, 1855 and Heptrunchius ...

Journal of Vertebrate Paleontology, 1996

An acid prepared specimen of Araripelepidotes temnurus (Agassiz, 1841) (Actinopterygii, Semionoti... more An acid prepared specimen of Araripelepidotes temnurus (Agassiz, 1841) (Actinopterygii, Semionotiformes) shows the maxilla, dentary, and antorbital. These bones, which were previously only poorly known in this fossil actinopterygian, are described in detail. From the development of a mobile maxilla and the presence of an interoperculum, it is concluded that A. temnurus was a suction feeder. By analogy to the

Journal of Vertebrate Paleontology, 1995

Bulk sampling of an Upper Jurassic (Kimmeridgian) section in front of the northern slope of the H... more Bulk sampling of an Upper Jurassic (Kimmeridgian) section in front of the northern slope of the Harz mountains (northern Germany) has yielded a rich assemblage of elasmobranch placoid scales. Their study shows that l) the placoid scales can be assigned to five ...

Journal of Vertebrate Paleontology, 1989

Lepidotes gloriae, sp. nov.(Actinopterygii: Semionotiformes) from the Late Jurassic of Western Cu... more Lepidotes gloriae, sp. nov.(Actinopterygii: Semionotiformes) from the Late Jurassic of Western Cuba is described. The skeletal anatomy of this fish shows two features previously unknown in Lepidotes Agassiz, 1832: 1) presence of two pairs of ectopterygoids and 2) ...

Ichnos, 2004

Dinosaur tracks at the Dinosaurier-Freilichtmuseum Münchehagen are well-known and are the reason ... more Dinosaur tracks at the Dinosaurier-Freilichtmuseum Münchehagen are well-known and are the reason the site is designated part of the German National Monument system. Although both sauropod and ornithopod tracks have been described in some detail, additional observations are presented herein. These include observations on the gauge and heteropody of sauropods and evidence for quadrupedal progression by ornithopods. Theropod tracks are

Fossil Record, 2008

A new teleostcan genus and species, Paraleptolepis wiedenrothi, is described from the Lower Liass... more A new teleostcan genus and species, Paraleptolepis wiedenrothi, is described from the Lower Liassic of Germany. The fish has an overall similarity with Lepfolepis coryphaenoides (from different Lower Liassic European localities) but differs from L. coryphnenoides in the presence of a few autapomorphics and also in the retention of several primitive features not present in L . coryphrrenoides. Examples of autapomorphic characters are: two moderately large suborbital bones; preopercle trinngular and with a notch at its posterior margin; large cleithrum with pronounced curvature anteriorly: pelvic axillary process formed by one small elongate bone; and long neural spines on preural ccntrum 1 and the ural centrum 1 + 2. Ptrmlepio/q,i~ 11. gen. is more closely related to Leptolepis and extant teleosts than it is to Prolepfolepis (from Lower Liassic localities). The new evidence supports the previous hypothesis that the family Leptolepididae sensu Nybelin is non-monophyletic. Several Characters (c.g.. concerning structure of vertebrae) that previously were accepted to have arisen at the phylogenetic level of Leptolepi.s coryplzcrpnoirles. are found also to occur in Puruleptolepis n. gen.

Mesozoic fishes, 2008

The skeletal and dental anatomy of the Late Jurassic squatinoids of southern Germany are reviewed... more The skeletal and dental anatomy of the Late Jurassic squatinoids of southern Germany are reviewed and their relationships with living angelsharks and other neoselachians are discussed in light of new anatomical data. Two Late Jurassic angelshark species, differing mainly in size, body proportions, and dental morphology, are recognized: iSquatina alifera (MUNSTER, 1842) from Solnhofen and iSquatina acanthoderma (FRAAS, 1854) from Nusplingen. iSquatina speciosa (MEYER, 1856), also from Solnhofen and ...