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The Late Cretaceous coral family Felixaraeidae (suborder Fungiina) is revised on the basis of its type genus and respective type species. The family encompasses solitary and colonial forms with very strong and perforated radial elements with a subregular radial symmetry. Radial elements are composed of large trabeculae expressed in a strongly ornamented upper septal margin and septal lateral face. Synapticulae are present. Together with the name-giving genus FelixaraeaBeauvais, 1982, the Tethyan coral genera BrachycauliaBeauvais, 1982, PseudofaviaOppenheim, 1930, and ThecoseriopsisAlloiteau, 1957, aswellasthe Western Atlantic genera FilkorniaLöser, 2012, ParacycloserisWells, 1934, and TrechmannariaWells, 1935, are assigned to the family. The new genus Marcelohelia n. gen. from the Maastrichtian of Mexico is established. It differs from all known member of the family by its phaceloid growth form. All genera are revised on the basis of the types of their respective type species. Possible species of all genera are presented. The palaeobiogeography of the genera is discussed. The family occurs from the Turonian to Maastrichtian or, possible, Danian.
A new genus and species of Flatidae planthoppers, Priscoflata subvexa n. gen., n. sp., is described here on the basis of tegmen from the Paleocene of Northern Tibet. The tegminal features of this fossil and its importance for classification and phylogenetic studies within Flatidae are given. The comparison of this fossil and other extant and extinct flatids, its systematic position, its biogeographic and evolutionary significance are discussed. “Ormenis” devinctaCockerell, 1926 from the Eocene of Argentina is placed in Fulgoroidea incertae sedis.
KEYWORDS: Mollusca, Gastropoda, Cypraeoidea, Ovulidae, Pediculariinae, Bartonien, Bassin sud-Pyrénéen, Espagne, genre nouveau, espèce nouvelle, Bartonian, south Pyrenean Basin, Spain, new genus, new species
Olianatrivia riberai n. gen., n. sp. (Mollusca, Caenogastropoda), a singular Ovulidae from the Bartonian (middle Eocene) of Catalonia (Spain).
Shells of an Ovulidae species with unusual morphological features have been collected in the axial part of the Oliana anticline, Catalonia: Olianatrivia riberai n. gen., n. sp. (Mollusca, Caenogastropoda) whose shape and ornamentation remind some Triviinae. According to the chronostratigraphy of the South-Pyrenean basin, it belongs to a subrecifal facies, reworked by storm dynamics, of a Late Bartonian age (Middle Eocene). It is proposed to place O. riberai n. gen., n. sp. within the Pediculariinae, a subfamily of Ovulidae (Cypraeoidea), close to Cypropterina ceciliae (De Gregorio, 1880) from the Veronese Early Lutetian.
KEYWORDS: Hemicyoninae, evolution, Biometry, ecology, Late Oligocene, Quercy, new tribe, new genera, new species, évolution, biométrie, écologie, Oligocène supérieur, tribu nouvelle, genres nouveaux, espèce nouvelle
Many karstic fissure fillings from the Quercy (France) constitute fossil bearing localities which give an exceptional open laboratory for the study of evolution of vertebrates and especially mammals from the Eocene to the Early Miocene. A couple of localities from the Late Oligocene (MP 28 = 24.9-24.5 Ma) have yielded, among several taxa, the best sample ever found of a hemicyonine ursid. This sample corresponds to a new species and allows a reappraisal of several other species belonging to lineages attributed to a new tribe (Cephalogalini n. tr.). The latter occupied in Europe along the Oligocene and the lower Miocene some canid-like ecological niches. This tribe was replaced at the end of the Lower Miocene by the Hemicyonini, another tribe of Hemicyoninae (Ursidae).
The newly discovered Upper Miocene to Upper Pliocene San Gregorio assemblage of the Purisima Formation in Central California has yielded a diverse collection of 34 marine vertebrate taxa, including eight sharks, two bony fish, three marine birds (described in a previous study), and 21 marine mammals. Pinnipeds include the walrus Dusignathus sp., cf. D. seftoni, the fur seal Callorhinus sp., cf. C. gilmorei, and indeterminate otariid bones. Baleen whales include dwarf mysticetes (Herpetocetus brambleiWhitmore & Barnes, 2008, Herpetocetus sp.), two right whales (cf. Eubalaena sp. 1, cf. Eubalaena sp. 2), at least three balaenopterids (“Balaenoptera” cortesi “var.” portisi Sacco, 1890, cf. Balaenoptera, Balaenopteridae gen. et sp. indet.) and a new species of rorqual (Balaenoptera bertae n. sp.) that exhibits a number of derived features that place it within the genus Balaenoptera. This new species of Balaenoptera is relatively small (estimated 61 cm bizygomatic width) and exhibits a comparatively narrow vertex, an obliquely (but precipitously) sloping frontal adjacent to vertex, anteriorly directed and short zygomatic processes, and squamosal creases. Fossil odontocetes include the lipotid “river dolphin” Parapontoporia sternbergi (Gregory & Kellogg, 1927), four true porpoises including a bizarre new genus also known from other strata (Phocoenidae indet., Phocoenidae unnamed genera 1 and 2, and cf. Phocoena), an indeterminate delphinid (Delphinidae indet.) a pilot whale-like delphinid (cf. Globicephalinae indet.), an undetermined sperm whale (cf. Physeteroidea indet.), and an indeterminate odontocete. The new record of Parapontoporia sternbergi is noteworthy as it represents the first association of any earbones (petrosal, tympanic bulla, malleus, and incus) for the extinct genus. Discovery and description of a complete marine mammal assemblage permits faunal comparisons with other published Pliocene marine mammal assemblages from around the globe. The aggregate Pliocene marine mammal assemblage from eastern North Pacific (ENP) shares little in common with the modern fauna, and is mostly composed of extinct genera; notably, phocoenids and odobenids were more diverse than in the ENP today. This indicates that the modern fauna of the ENP did not emerge until after the end of the Pliocene, and probably sometime during the Early Pleistocene. The Pliocene ENP assemblage is similar to that of Japan, and the North Pacific in general shares little with south Pacific, Mediterranean, or North Atlantic marine mammal assemblages, indicating the North Pacific hosted a provincial marine mammal fauna that evolved in isolation from the modern marine mammal fauna, which had already appeared in the North Atlantic by the Early Pliocene.
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