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Post-larval and larval shells ofJuranomia calcibyssata from the Bathonian to Callovian of Poland and RecentAnomia membranacea from the Mediterranean are described and compared to other fossil and Recent members of the family Anomüdae. The stratigraphic range of the monospecific genusJuranomia, which, up to now, was only known from the Kimmeridgian, can be extended to include the Lower Bathonian. The...
Four new species of Hymenoptera are described from the Early Cretaceous (Lower Barremian) lithographic limestones of the Sierra del Montsec (Lérida Province, NE Spain):Prosyntexis montsecensis n. sp. (Sepulcidae),Manlaya lacabrua n. sp. (Gasteruptiidae),Meiagaster cretaceus n. gen., n. sp. (Bethylonymidae),Angarosphex lithographicus n. sp. (Sphecidae). The Spanish assemblage extends our knowledge...
Kurzfassung Es wird ein weiteres juveniles Individuum des kleinen RaubtieresMiacis? kessleri Springhorn 1982 aus den untermitteleozänen Ölschiefern (MP 11) der Grube Messel bei Darmstadt (Süd-Hessen, Deutschland) beschrieben. Das nahezu vollständige Skelett zeigt Merkmale der Bezahnung, des Schädels und des Bewegungsapparates, die die bisherigen Erkenntnisse erweitern und eine taxonomische Revision...
Spondylosoma absconditum (Ladinian, Middle Triassic) lacks certain Dinosauriformes-Dinosauria characters (sigmoid curve and epipophyses in neck, distally placed deltopectoral crest on humerus) and those present (accessary hyposphene-hypantra vertebral articulations, three sacral vertebrae, elongate pubis) also occur in the Rauisuchia (Crurotarsi, Suchia, Rauisuchiformes).Spondylosoma is tentatively...
New phyllocarids are described from the Ordovician (early Arenig to lower Caradoc) of the Precordillera and Eastern Cordillera of Argentina, namelyCaryocaris delicatus n. sp.,Caryocaris sp. 1, ?Caryocaris sp. 2,Pumilocaris granulosus n. gen., n. sp., ?Pumilocaris sp. and an undetermined form. They all occur in graptolite-bearing shales. A critical review of the South American phyllocarids formerly...
The Süßwasser-Schichten (Freshwater Beds) (Oligocene) in the Mainz Basin are a paleontologically poorly studied formation. A succession of predominantly lacustrine marls from Wolfsheim can be attributed to the Süßwasser-Schichten on basis of a palaeoecological and biostratigraphic analysis of its mammal teeth, fish otoliths, ostracods, mollusks, foraminifera and charophytes. The occurrence of the...
At Herford-Diebrock a section from the Upper Sinemurian (Raricostatum to Aplanatum Subzone) to the Lower Pliensbachian (Polymorphus Subzone) is studied in respect of its ammonite faunas. Precise correlations in terms of faunal horizons are carried out between Yorkshire and SW Germany through Hessische Straße. Special emphasis is given to the taxonomical position ofEoderoceras armatum (Sowerby).Eoderoceras miles...
The family Lebachacanthidae was erected for“Orthacanthus” senkenbergianus, a xenacanthiform from the Lower Permian of Lebach (Germany). Recently, the validity of the family has been questioned and the type species,Lebachacanthus senkenbergianus, has been included in the genusOrthacanthus Agassiz 1843, subgenusLebachacanthus Soler-Gijón 1997. Arguments against such changes are presented here. Anew...
en|This paper deals with a new species ofOtarion [Otarion (Otarionella) greifensteinen.se n. sp.] from the ‘Greifenstein Limestone’ of the ‘Wiege’ near Greifenstein, close to the village Greifenstein near Herborn (Lahn-Dill area, Hesse, Germany), which is described, figured and compared with all known species of this subgenus. It is a typical trilobite of the hercynian-bohemian shallow marine facies...
Bergisuchus dietrichbergi Kuhn is redescribed as a member of its own family, Bergisuchidae n. fam., within the Sebecosuchia. At present, two fragmentary specimens ofBergisuchus are known: the holotype ofBergisuchus, a partial rostrum, comes from the lower part of the Middle Eocene of the Messel pit, near Darmstadt; and a recently discovered fragmentary mandible from the middle part of the Middle Eocene...
Rare phosphatic tubular fossils from the Lower-Middle Cambrian Kaili Formation of Guizhou Province, southern China were originally identified as non-calcified algae or ‘worms’ (ScoleciellusLiu). Re-examination of these fossils indicates that specimens identified as non-calcified algae areSphenothallus taijiangensis n. sp., while specimens identified asScoleciellus belong toByronia natus (Liu).Sphenothallus taijiangensis...
In a case study, a stratophenetic analysis of the succeeding ammonoid faunas of the latest Devonian and earliest Carboniferous cephalopod limestones of the Rhenish Massif has been made. This investigation concentrated on the development of the whorl expansion rate (WER), a character very important for ammonoids since it indicates the body chamber length and hence the orientation in the water column...
Studies of processes connected with various Phanerozoic mass extinctions suggest that although these events differ in details from each other, they manifest certain global mutual similarities. There is a number of detailed data on the mass extinction phases but only scarce information on the survival and recovery intervals directly following the crises. In connection with the biota crises studies...
E. F. v. Schlotheim described 46 species of Jurassic and Cretaceous belemnites in 1813,1820, and 1832. Their type specimens are in part housed at the Humboldt University of Berlin. The holotype ofBelemnites irregularis is here refigured. Lectotypes forB. acuarius, B. canaliculatus, B. clavatus, B. giganteus, andB. tripartitus are designated and figured for the first time. The lectotype ofBelemnites giganteus...
Résumé Différentes analyses (histologie, spectrométrie infra-rouge, EDS, Chromatographie, etc…) ont été réalisées sur les phases organiques et minérales d’os venant d’Aubrelong 1 (Oligocène, Phosphorites du Quercy, France). Il apparait que la quantité de matière organique tend à diminuer au cours de la fossilisation. Les propriétés de la matière organique diffèrent nettement de celles de l’os frais:...
Kurzfassung Aus kieselig-tonigen, feinlaminierten See-Sedimenten des Ober-Oligozäns von Rott (Siebengebirge bei Bonn, Deutschland) wird ein Stück eines strukturerhaltenen Süßwasserschwammes (Spongillidae, gen. et sp. indet.) beschrieben. Die Erhaltung ist auf eine frühe Stabilisierung des Nadelgerüstes durch Phosphat zurückzuführen. Das Phosphat ersetzte den Weichkörperanteil in seinen Umrissen und...
Fossil cephalopods are rare in the Antillean region. A deformed conch of a kossmaticeratid ammonite,Pseudokossmaticerasl sp., from the Maastrichtian of the Blue Mountain Inlier is the first ammonite from southeastern Jamaica. This tentative systematic assignment is in agreement with the age otherwise assigned to these rocks.Cimomia sp. cf.C. vaughani (Gardner) is a hercoglossid nautiloid from the...
The middle Triassic bivalve genusDaonella Mojsisovics, 1874 would be an ideal guide fossil (worldwide distribution, high evolutionary rates); however, the classification of daonellas is difficult. Most daonellas lack distinct characters and have a wide range of morphologic variation. A new taxonomic attempt was necessary to get a coherentDaonella classification. The new taxonomic concept proposed...
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