scholarly journals The Amphicyoninae (Amphicyonidae, Carnivora, Mammalia) of the early Miocene from Tuchořice, the Czech Republic

2021 ◽  
Vol 77 (1) ◽  
pp. 126-144
Author(s):  
Jorge Morales ◽  
Oldřich Fejfar ◽  
Elmar Heizmann ◽  
Jan Wagner ◽  
Alberto Valenciano ◽  
...  
Keyword(s):  
Czech Republic ◽  
Type Species ◽  
New Genus ◽  
Environmental Changes ◽  
Early Miocene ◽  
The Czech Republic

The Amphicyoninae of the early Miocene from the locality of Tuchořice, the Czech Republic, are represented by three species. Two of them are classified within the tribe Amphicyonini: Paludocyon bohemicus (Schlosser, 1899) as the type species of Paludocyon n. gen., and a large-sized amphicyonid determined as Megamphicyon carnutense (Antunes et Ginsburg, 1977). Dehmicyon n. gen. aff. schlosseri is determined by two small teeth. This new genus has been proposed for the species Amphicyon schlosseri Dehm, 1950 from Wintershof-West and is tentatively included in the tribe Pseudarctini nov. together with the genera Ictiocyon and Pseudarctos. This association of Amphicyoninae provides valuable information on the taxonomy and systematics of this subfamily during the early Miocene, at which time important environmental changes were taking place in Europe, which undoubtedly affected the evolution of Amphicyonidae.

On the identity of Photophilus Folkmanová, 1928: A new generic synonymy (Chilopoda: Geophilomorpha: Geophilidae)

Zootaxa ◽  
2017 ◽  
Vol 4347 (2) ◽  
pp. 361
Author(s):  
LÁSZLÓ DÁNYI ◽  
IVAN HADRIÁN TUF
Keyword(s):  
Czech Republic ◽  
Type Species ◽  
New Genus ◽  
Original Description ◽  
Morphological Characters ◽  
Monotypic Genus ◽  
The Czech Republic ◽  
Central European ◽  
European Species ◽  
Senior Synonym

The enigmatic monotypic genus Photophilus Folkmanová, 1928 and its type species, Photophilus griseus Folkmanová, 1928, were described almost 90 years ago from the Czech Republic. The new genus was erected not only based on some morphological characters, but also on behavioural features rather peculiar among Central European geophilomorphs. Although the patria of these taxa is among the best studied regions regarding Chilopoda, and focussed effort has been made to collect further representatives of these taxa, none have been found since the original description As the type material is lost and we failed to collect new specimens from the type locality, we tried to elucidate the true identity of these genus and species by analysing the characters given in the original description in comparison to all other geophilomorphs known from Europe. The structure of the mouth-parts, the shape of the ventral pore-fields and the arrangement of the coxal pores indicate Photophilus to be in the closest relation with the genus Geophilus Leach, 1814 from which it is separated by characters which are shown here as artefacts or misinterpretations according to the judgement of the original descriptions illustrations. Considering the remaining characters of Photophilus and its type species—including the behavioural features—they actually fit only to the widespread European species Geophilus carpophagus Leach, 1815, which is formerly proposed here to be the subjective senior synonym of Photophilus griseus Folkmanová, 1928 (syn. nov.). Photophilus is formerly proposed here as subjective junior synonym of Geophilus (syn. nov.). 

scholarly journals A New Thaumastocyoninae (Amphicyonidae, Carnivora) from the Early Miocene of Tuchořice, the Czech Republic

2019 ◽  
Vol 75 (3-4) ◽  
pp. 397-411
Author(s):  
Jorge Morales ◽  
Oldřich Fejfar ◽  
Elmar Heizmann ◽  
Jan Wagner ◽  
Alberto Valenciano ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Czech Republic ◽  
Morphological Traits ◽  
New Genus ◽  
Sister Group ◽  
The Other ◽  
Monophyletic Group ◽  
Early Miocene ◽  
The Czech Republic ◽  
Fossil Remains

Abstract New Amphicyonidae fossil remains from the early Miocene site of Tuchořice (the Czech Republic) confirm the presence of a new Thaumastocyoninae taxon: Peignecyon felinoides n. gen. et n. sp. It is characterized by a peculiar combination of plesiomorphic and derived morphological traits. The new genus can be defined by a long and sharp mandible diastema, loss of mesial premolars (p2–p3), p4 with an inclined distally high main cuspid, moderate sectorial carnassial teeth, m1 with relict metaconid, and talonid and trigonid of similar width, and reduced M2 and m2. In the phylogenetic analysis the Thaumastocyoninae form a monophyletic group characterized by the start of the m2/M2 reduction, still moderate in Crassidia intermedia (von Meyer, 1849), but remarkable in the other species of the clade. Peignecyon felinoides already shows the advanced features defining the Thaumastocyoninae, and constitutes the sister group of the most specialized genera Tomocyon Viret, 1929b and Thaumastocyon Sthelin et Helbing, 1925. Consequently, it can be considered an excellent link between this group and the more primitive members of the tribe Ysengrini (Ysengrinia Ginsburg, 1966 and Crassidia Heizmannn et Kordikova, 2000). Peignecyon felinoides shows that the trend towards hypercarnivory had already emerged in the European early Miocene fauna, thus helping to understand the complex evolution of the Amphicyonidae during the Miocene.

A new trap-jaw ant species of the genus Odontomachus (Hymenoptera: Formicidae: Ponerinae) from the Early Miocene (Burdigalian) of the Czech Republic

PalZ ◽  
2013 ◽  
Vol 88 (4) ◽  
pp. 495-502 ◽  
Author(s):  
Torsten Wappler ◽  
Gennady M. Dlussky ◽  
Michael S. Engel ◽  
Jakub Prokop ◽  
Stanislav Knor
Keyword(s):  
Czech Republic ◽  
Early Miocene ◽  
The Czech Republic

Late Pleistocene Environments of the Central Ukraine

2001 ◽  
Vol 56 (3) ◽  
pp. 349-356 ◽  
Author(s):  
Denis-Didier Rousseau ◽  
Natalia Gerasimenko ◽  
Zhanna Matviischina ◽  
George Kukla
Keyword(s):  
Czech Republic ◽  
Late Pleistocene ◽  
Temperate Forest ◽  
Western Europe ◽  
Environmental Changes ◽  
Last Interglacial ◽  
The Czech Republic ◽  
Low Field ◽  
Lower Pleistocene ◽  
Mis 5

AbstractThe Vyazivok loess sequence from the Dnieper Plain, Ukraine, documents regional environmental changes during the late Pleistocene and Holocene. Pedological and palynological analyses and low-field magnetic susceptibility document changes from dense temperate forest during the last interglacial maximum to open, harsh, loess–steppe during the latest Pleistocene. The Vyazivok section overlies hillwash derived from a lower Pleistocene terrace and consists of two stratified soil complexes (Kaydaky and Pryluky; marine isotope stage [MIS] 5 equivalent) separated by a layer of eolian dust (Tyasmyn silt). The lower soils in both complexes formed within forest. These soils are overlain by the Uday (MIS4) and Bug (MIS2) loess units, which are separated by boreal soils of the Vytachiv (MIS3) complex. The coldest conditions within the record occurred in the youngest loess. Holocene soils cap the Bug loess. The Vyazivok section shows remarkable similarities with other classical loess sequences in western Europe, the Czech Republic, and Austria. The Kaydaky, Pryluky, and Vytachiv deposits, correlate with the PKIII, PKII, and PKI soil complexes, respectively, of the Czech Republic. The Tyasmyn and Prylyky silt layers correspond to marker horizons from central Europe.

Neogene Pectinidae (Bivalvia) of tribe Chlamydini Teppner, 1922 in Patagonia (Argentina):ZygochlamysIhering, 1907 and three new genera

2018 ◽  
Vol 93 (2) ◽  
pp. 312-336 ◽  
Author(s):  
María B. Santelli ◽  
Claudia J. del Río
Keyword(s):  
Late Miocene ◽  
Type Species ◽  
Antarctic Circumpolar Current ◽  
Middle Miocene ◽  
New Genus ◽  
Early Miocene ◽  
New Genera ◽  
Early Pliocene ◽  
Circumpolar Current ◽  
The Antarctic

AbstractZygochlamysIhering, 1907 is revised and three new genera of tribe Chlamydini are named: the monospecific early Miocene generaPixiechlamysnew genus (type species:Pecten quemadensisIhering, 1897) andChokekenian. gen. (type species:Zygochlamys nicolasiMorra, 1985), and the late Miocene–early PlioceneMoirechlamysn. gen., containingPecten actinodesSowerby, 1846 (type species) andChlamys auroraeFeruglio, 1954.Zygochlamysis restricted to includeZ. geminata(Sowerby, 1846) (type species),Z. jorgensisIhering, 1907, andZ. sebastianiMorra, 1985. The present analysis increases the biostratigraphic usefulness of the group and improves taxonomic knowledge of the Neogene molluscan assemblages defined previously for Patagonia.Zygochlamys geminatais confined to the latest Oligocene–early Miocene interval of the Austral Basin of Patagonia (Argentina) and to the early Miocene of Chile,Z. jorgensisis restricted to the early to middle Miocene of the Golfo San Jorge and northern Austral Basins, andMoirechlamysn. gen., the most widespread genus, occurs in the late Miocene–early Pliocene of the Austral, Golfo San Jorge, Valdés, and Colorado basins. All these genera are endemic to southern South America;Zygochlamysis not related to other circumpolar genera such asAustrochlamysJonkers, 2003 orPsychrochlamysJonkers, 2003, rejecting its dispersal in the Antarctic Circumpolar Current, as has been proposed previously.UUID:http://zoobank.org/55d7ea85-5ec5-477a-9ede-5d3d795b75b5

scholarly journals New contribution to the palaeoichnology and taphonomy of the Ahníkov fossil site, Early Miocene, Most Basin (the Czech Republic)

2016 ◽  
Vol 72 (3-4) ◽  
pp. 202-214
Author(s):  
Boris Ekrt ◽  
Oscar Chiantore ◽  
Radek Mikuláš ◽  
Jan Wagner ◽  
Stanislav Čermák ◽  
...  
Keyword(s):  
Czech Republic ◽  
Early Miocene ◽  
Late Cenozoic ◽  
Red Squirrels ◽  
The Czech Republic ◽  
Additional Information ◽  
Fossil Site ◽  
Horizontal Bottom

The material of Machichnus regularis and Machichnus multilineatus was re-examined with respect to the potential tracemaker. New characters were defined for M. multilineatus – scratch profile with flat horizontal bottom and undulated microrelief of scratches. Based on these characters and additional information, both previously suggested tracemakers (beavers and porcupines) are rejected and a new one – a large squirrel is proposed. The squirrel origin of gnawing traces is additionally supported by actuopalaeontologic study on gnawing behaviour of recent red squirrels. On this basis, squirrels are recognized as overlooked but important taphonomic agents in Late Cenozoic assemblages. The tracemaker of M. regularis was not unambiguously recognized, but a connection with smaller squirrel or aplodontid species seems probable.

Sign in / Sign up

Export Citation Format

Share Document