PalZ

Evans, David H.; Holland, Charles Hepworth

doi: 10.1007/bf02987799pmid: N/A

The rare Silurian representatives of the Order Endocerida are reviewed, described afresh, and illustrated. The Welsh Llandovery speciesTretoceras bisiphonatum is assigned to the order. Canadian Llandovery to Wenlock forms,Cameroceras hudsonicum and species ofHumeoceras, complete the record as presently known.

Nikolaeva, Svetlana V.; Kullmann, Jürgen

doi: 10.1007/bf02987800pmid: N/A

The genusCancelloceras (family Gastrioceratidae) comprises three subgeneraCancelloceras, Crencelloceras n. subgen. andMonitoceras differing in conch ornamentation.Cancelloceras is cosmopolitan and regarded as the index genus for the Upper Namurian G1 Zone, the Yeadonian. The lower boundary of the G1 Zone is defined by the entry ofCancelloceras (Crencelloceras) branneroides, whereas the first representatives of the genus appeared earlier, in the Middle Namurian R2 Zone. The upper boundary of the G1 Zone is marked by the extinction ofCancelloceras and the entry of its descendant genusGastrioceras. Cancelloceras comprises 27 species.

Seyed-Emami, Kazem; Immel, Harald

doi: 10.1007/bf02987801pmid: N/A

Lucas, Spencer G.; Heckert, Andrew B.; Hunt, Adrian P.

doi: 10.1007/bf02987807pmid: N/A

We report two unusual aetosaur scutes from the Tecovas Member of the Dockum Formation, Chinle Group (upper Carnian) of Crosby County, Texas, U.S.A. Originally collected by University of Michigan expeditions in the 1920’s, these scutes cannot be assigned with certainty to any known species of aetosaurs known from the American Southwest. One of these scutes may be a cervical horn ofParatypothorax, and if so confirms the similarities of this aetosaur toDesmatosuchus in the possession of horned lateral spikes. The other is a paramedian scute of a new aetosaur taxon inadequately known at present to be assigned a formal name. These scutes indicate that aetosaurs were more diverse in the Chinle Group than currently known, but do not alter the robust Late Triassic biochronology based on aetosaurs.

Rauhut, Oliver W. M.; Werner, Christa

doi: 10.1007/bf02987808pmid: N/A

The Cenomanian Wadi Milk Formation in Sudan yielded a rich continental vertebrate fauna. Apart from big theropod fragments, some disarticulated elements of a pes and a tooth indicate the presence of a dromaeosaurid theropod in the Late Cretaceous of Sudan. This is the first record of this theropod family from Gondwanian continents.

Forsten, Ann; Kaya, Tanju

doi: 10.1007/bf02987809pmid: N/A

The mammalian fauna from Gülpinar (Canakkale, Turkey), dated Turolian, comprises threeHipparion taxa:H. cf.matthewi, H. sp. medium-sized, andH. sp. large. Two metatarsals may represent a fourth taxon or may derive from a different locality. The hipparion material is described here.

Uchman, Alfred; Krenmayr, Hans Georg

doi: 10.1007/bf02987810pmid: N/A

Lower Miocene siliciclastic sediments of the Vöckla Schichten and Atzbacher Sande, Austria, contain a shallow-water trace-fossil assemblage of the Cruziana ichnofacies includingSkolithos isp.,Planolites ? beverleyensis, Ophiomorpha annulata, O.nodosa, Rosselia socialis, Cylindrichnus concentricus, Scolicia isp., andBichordites monastiriensis. The ichnogenusRosselia and the ichnospeciesRosselia socialis are revised. Analysis ofScolicia isp. andB. monastiriensis provides new information about their morphology and ichnotaxonomy.