Stratigraphic position and localities of the Temlyan flora from the Anadyr river lower course basin

Plant fossils from the volcano-clastic deposits of the lower part of the Tanyurer Formation and lower part of the Tavaivaam Unit in the Anadyr city area (Northeastrn Russia) are described for the first time. This assemblage was named as the Temlyan flora. It consists of 25 taxa and includes ferns, horsetails, lycophytes, ginkgoaleans, czekanowskialeans, cycadophytes, conifers and angiosperms. The Temlyan flora is similar in systematic composition to the Rarytkin flora from the upper part of the Rarytkin Formation which was dated as the late Maastrichtian-Danian. But it is distinguished from the latter by presence of the numerous relicts (Lokyma, Nilssonia, Encephalartopsis, Phoenicopsis and Ginkgo ex gr. sibirica). Probably the presence of relicts in the Temlyan flora is connected with influence of volcanic activity. Age of the Temlyan flora is determined as the late Maastrichtian-Danian on the basis of systematic similarity with the Rarytkin Flora. However this age may be slightly younger, possibly only early Paleocene, because the Tanyurer Formation superposes the Rarytkin Formation. Stratigraphic range of Lokyma, Nilssonia, Encephalartopsis, Phoenicopsis and Ginkgo ex gr. sibirica is extended from its previously known latest records in the early Campanian or middle Maastrichtian up to as late as the latest Maastrichtian or early Paleocene. It is very possible, that these typical Mesozoic taxa may have persisted into the Paleogene.

Ethusa sp. (Decapoda, Brachyura, Ethusidae) from the Pliocene of Valduggia (Vercelli, Piedmont, NW Italy)

Natural History Sciences ◽

10.4081/nhs.2016.262 ◽

2016 ◽

Vol 3 (1) ◽

pp. 53

Author(s):

Giovanni Pasini ◽

Alessandro Garassino

Keyword(s):

Mediterranean Basin ◽

New Finding ◽

Nw Italy ◽

First Time ◽

<em>Ethusa</em> sp. (Decapoda, Brachyura, Ethusidae) from Valduggia (Vercelli, Piedmont, NW Italy) is here reported for the first time from the Pliocene of Italy. This new finding enlarges our knowledge on the distribution and stratigraphic range of this genus in the paleo- Mediterranean basin.

Eudaemonema webbi sp. nov. (Mammalia, Mixodectidae) from the late Paleocene of western Canada: the youngest known mixodectid

Canadian Journal of Earth Sciences ◽

10.1139/e10-074 ◽

2010 ◽

Vol 47 (12) ◽

pp. 1451-1462 ◽

Cited By ~ 6

Author(s):

Craig S. Scott

Keyword(s):

New Species ◽

North American ◽

Western Canada ◽

South Central ◽

Late Paleocene ◽

Early Paleocene ◽

Stratigraphic Ranges ◽

A New Species ◽

Mixodectidae (Mammalia, Archonta) are an unusual, poorly known family of dermopteran-like mammals that have been discovered at several North American localities of primarily early Paleocene age. Among the three or four recognized mixodectid genera, Eudaemonema Simpson is perhaps one of the least understood, being known from only a few localities of late Torrejonian and earliest Tiffanian age. This paper reports on a new species of Eudaemonema from the late Paleocene of Alberta, Canada, that significantly extends the geographic and stratigraphic ranges of the genus. Eudaemonema webbi sp. nov. is known from middle and late Tiffanian localities in central and south central Alberta, and it represents the youngest and northernmost species of Eudaemonema so far discovered. E. webbi differs from the genotypic species E. cuspidata in being larger and in having a suite of dental characters (e.g., molariform posterior premolars, enlarged molar protocone and hypocone, development of a second grinding platform on the lower molars) that suggests an increased emphasis on grinding during mastication. E. webbi possesses several dental features (e.g., broad, shelf-like molar paraconid–paracristid, lingually shifted molar hypoconulid) that resemble those of cynocephalids (Mammalia, Dermoptera), with these resemblances interpreted herein as convergent. The occurrence of E. webbi at Gao Mine extends the stratigraphic range of Eudaemonema into the late Tiffanian (Ti5) and represents the youngest known record of Mixodectidae.

A supplementary description of Brisaster iheringi (Spatangoida: Schizasteridae) from the Miocene of Patagonia Argentina

Revista de Biología Tropical ◽

10.15517/rbt.v65i1-1.31675 ◽

2017 ◽

Vol 65 (1-1) ◽

pp. 137 ◽

Author(s):

Sergio Martínez ◽

Claudia J. Del Río

Keyword(s):

Original Description ◽

Early Miocene ◽

Apical Disc ◽

Oral Side ◽

First Time ◽

Neogene Argentinean echinoids are important biostratigraphic tools. New specimens of Schizaster iheringi (de Loriol, 1902) from Early Miocene sedimentites (Chenque Formation, Patagonia, Argentina) allowed us to improve its original description, providing for the first time details of the apical disc and the oral side of test. The species is included into the genus Brisaster: the first unquestionable documented reference to the taxon from the Neogene of Argentina. All previously reported specimens of this species are evaluated, concluding that the stratigraphic range of the genus Brisaster in Patagonia must be restricted to the Early Miocene. Rev. Biol. Trop. 65(Suppl. 1): S137-S146. Epub 2017 November 01.

The Cretaceous-Paleogene boundary in turbiditic deposits identified to the bed: a case study from the Skole Nappe (Outer Carpathians, southern Poland)

Geologica Carpathica ◽

10.2478/v10096-011-0025-8 ◽

2011 ◽

Vol 62 (4) ◽

pp. 333-343 ◽

Author(s):

M. Gasiński ◽

Alfred Uchman

Keyword(s):

Precise Determination ◽

Thrust Sheet ◽

Southern Poland ◽

The Carpathians ◽

Early Paleocene ◽

Outer Carpathians ◽

First Time

The Cretaceous-Paleogene boundary in turbiditic deposits identified to the bed: a case study from the Skole Nappe (Outer Carpathians, southern Poland)The Cretaceous-Paleogene (K-T) boundary has been recognized in turbiditic sediments of the Ropianka Formation in the Skole Nappe (Bąkowiec section) on the basis of planktonic foraminiferids with an accuracy of 40 cm. Such precise determination of the K-T boundary for the first time in the Carpathians and in turbiditic flysch sediments in general was possible due to the successive occurrence of the Early Paleocene planktonic taxa of the P1 Zone above the latest MaastrichtianAbathomphalus mayaroensisZone with theRacemiguembelina fructicosaSubzone. The trends in composition of the latest Maastrichtian foraminiferal assemblages are similar to the Gaj section from the adjacent thrust sheet, probably due to the influence of the same paleoenvironmental factors.

Decapod crustaceans from the Semilla Sandstone Member, Mancos Shale (Upper Cretaceous), north-central New Mexico

Journal of Paleontology ◽

10.1017/s0022336000023143 ◽

1996 ◽

Vol 70 (1) ◽

pp. 111-116 ◽

Cited By ~ 2

Author(s):

Elizabeth K. Toolson ◽

Barry S. Kues

Keyword(s):

New Mexico ◽

Upper Cretaceous ◽

Decapod Crustaceans ◽

North Central ◽

Mancos Shale ◽

First Time ◽

The decapods Linuparus grimmeri Stenzel, Protocallianassa mortoni (Pilsbry) and Necrocarcinus (Cenomanocarcinus) vanstraeleni (Stenzel)? are described from the middle Turonian Semilla Sandstone Member, Mancos Shale, of north-central New Mexico. The main specimen of P. mortoni is unusually complete, consisting of a complete left first cheliped, parts of other pereiopods, and most of the abdomen. Both L. grimmeri and P. mortoni are reported for the first time from the southern Western Interior. The stratigraphic range of L. grimmeri is extended upward from the upper Cenomanian, and the range of P. mortoni downward from the Campanian.

Decapod assemblage from the late Miocene (early-middle Messinian) of the Romagna Apennines nearby Brisighella, Emilia-Romagna (N Italy)

Natural History Sciences ◽

10.4081/nhs.2019.394 ◽

2019 ◽

Vol 6 (1) ◽

pp. 27-32 ◽

Author(s):

Giovanni Pasini ◽

Alessandro Garassino ◽

Marco Sami

Keyword(s):

Late Miocene ◽

Mediterranean Basin ◽

The Other ◽

Limited Knowledge ◽

Ne Italy ◽

The Mediterranean ◽

First Time ◽

The Mediterranean Basin ◽

An assemblage of axiidean and brachyuran decapods is reported from the late Miocene pre-evaporitic (early-middle Messinian) limestone of Cò di Sasso, nearby Brisighella (Ravenna, Emilia- Romagna), located in Romagna Apennines (NE Italy). Except Monodaeus bortolottii Delle Cave, 1988 (Xanthidae MacLeay, 1838), which is reported here for the first time in Miocene, all the other specimens have been assigned to species previously known in the Italian Miocene (Messinian s.l.), but never reported in this area. The report of Galathea cf. G. weinfurteri Bachmayer, 1950 (Galatheidae Samouelle, 1819) and Medorippe ampla Garassino, De Angeli, Gallo and Pasini, 2004 (Dorippidae MacLeay, 1838) enlarges the stratigraphic range of these Miocene species. This report enlarges our limited knowledge on the composition and distribution of the axiidean, anomuran, and brachyuran decapods during the early-middle Messinian before the evaporitic event in the Mediterranean Basin.

Late Cretaceous–early Paleocene ostracod biostratigraphy of Scientific Drilling Sk1(N) in the Songliao Basin, northeast China

Journal of Paleontology ◽

10.1666/13-076 ◽

2014 ◽

Vol 88 (4) ◽

pp. 786-799 ◽

Cited By ~ 17

Author(s):

Haiying Qu ◽

Dangpeng Xi ◽

Sha Li ◽

Jean Paul Colin ◽

Qinghua Huang ◽

...

Keyword(s):

New Species ◽

Late Cretaceous ◽

Northeast China ◽

Songliao Basin ◽

Scientific Drilling ◽

Marine Deposits ◽

First Occurrence ◽

Early Paleocene ◽

First Time ◽

One New Species

Cretaceous non-marine deposits are widespread in China and have been studied comprehensively. The Songliao Basin in northeast China is thought to be well suited for investigation of Cretaceous biostratigraphy. However, despite much research having been conducted in the basin, little is known about its Late Cretaceous biostratigraphy and paleoenvironment. Here, we establish a high-resolution biostratigraphy of the Late Cretaceous based on ostracods from borehole SK1(n) in the Songliao Basin, northeast China. As part of the present study, 45 species assigned to 20 genera have been recovered, with one new species (Ilyocypris bisulcata n. sp.) and five ostracod assemblages: the Cypridea gunsulinensis–Mongolocypris magna assemblage, which is marked by the first occurrence (F.O.) of Ilyocyprimorpha with nodes and spines; the Ilyocyprimorpha–Limnocypridea sunliaonensis–Periacanthella assemblage, which ranges from the F.O. of Ilyocyprimorpha with nodes and spines to the F.O. of Strumosia sp.; the Strumosia inandita assemblage from the F.O. of Strumosia sp. to the lower occurrence (L.O.) of Strumosia inandita; the Talicypridea amoena–Metacypris kaitunensis–Ziziphocypris simakovi assemblage from the F.O. of Mongolocypris apiculata (Cea) and Talicypridea amoena to the F.O. of Ilyocypris sp.; and the Ilyocypris assemblage from the F.O. of Ilyocypris sp. to the L.O. of Ilyocypris bisulcata n. sp.Moreover, the zonal fossil Ilyocypris bisulcata n. sp. of Zone 5 is here described for the first time from the upper Mingshui Formation, and Paleocene charophyte genera including Neochara and Grovesicahra have been found to coexist with the Zone 5 fauna. The age of the Ilyocypris Assemblage is assigned to the latest Maastrichtian to the earliest Danian.

New species of the rare early Eocene creodont Galecyon and the radiation of early Hyaenodontidae

Journal of Paleontology ◽

10.1666/10-093.1 ◽

2011 ◽

Vol 85 (2) ◽

pp. 315-336 ◽

Cited By ~ 16

Author(s):

Shawn P. Zack

Keyword(s):

Phylogenetic Analysis ◽

New Species ◽

North American ◽

Type Species ◽

New Records ◽

North American Species ◽

Early Eocene ◽

Two New Species ◽

Stratigraphic Position ◽

Galecyon is one of the first appearing hyaenodontid creodonts, as well as one of the most poorly known. New specimens greatly improve our understanding of the morphology of this early Eocene genus, thereby enhance knowledge of the earliest radiation of Hyaenodontidae, and include the first associated upper dental remains, as well as fragmentary cranial remains. The new records substantially expand the stratigraphic range of the genus and allow recognition of two new species. The first, Galecyon peregrinus n. sp., is a small, early species that includes the first records of Galecyon from the earliest Eocene Wa-0 interval. The second, Galecyon chronius n. sp., is a large, terminal species, represented by numerous specimens that extend the range of the genus into the late Wasatchian. The type species, G. mordax, is restricted to specimens that are intermediate in size and stratigraphic position. Phylogenetic analysis of early hyaenodontids confirms the monophyly of Galecyon and places it basal to Prolimnocyon, Prototomus, and Pyrocyon. Arfia is identified as the earliest diverging hyaenodontid sampled, contrasting with prior support for a more crownward position. Prototomus martis is more closely allied to Pyrocyon than to other species of Prototomus. The three North American species of Galecyon form a probable anagenetic lineage.

Palaeobotanical study of Polichnitos region, southern part of Lesbos Island, Greece (preliminary results on angiosperm wood).

Bulletin of the Geological Society of Greece ◽

10.12681/bgsg.10928 ◽

2016 ◽

Vol 47 (1) ◽

pp. 204 ◽

Author(s):

D. Mantzouka ◽

J. Sakala ◽

Z. Kvaček ◽

V. Karakitsios

Keyword(s):

Scientific Data ◽

Fossil Wood ◽

Published Data ◽

Present Contribution ◽

Preliminary Results ◽

Plant Fossils ◽

New Information ◽

New Localities ◽

First Time ◽

Petrified Forest

The present contribution brings new scientific data for the palaeoflora of Lesbos based on new collections of plant fossils which were discovered in 2011 at six new localities from the southern part of Lesbos Island. This study resumes the published data both on the palaeovegetation of the Petrified Forest and the palaeogeography of Lesbos Island during the Neogene. The new palaeobotanical study with more than seventy new samples of fossilized wood from the broader area of Polichnitos region gives new information about the palaeobotanical and palaeontological content of this area. It is reported for the first time here the existence of a diversified fossil wood assemblage from the southern part of the Island as long as the identification of three types of lauraceous wood according to their idioblasts characteristics.

A new Cenozoic record of spinilomatine aporrhaids (Stromboidea, Caenogastropoda) in the early Paleocene of Faxe, Denmark

Bulletin of the Geological Society of Denmark ◽

10.37570/bgsd-2017-65-03 ◽

2017 ◽

Vol 65 ◽

pp. 37-45

Author(s):

Kai Ingemann Schnetler ◽

Jesper Milàn

Keyword(s):

Soft Substrate ◽

Early Paleocene ◽

Hard Substrates ◽

A new find is identified as a representative of the subfamily Spinilomatinae, viz. Spiniloma? faxensis sp. nov. The specimen was found as an impression in coral limestone of the early Paleocene (middle Danian) Faxe Formation in the Faxe quarry in Denmark. The genus Spiniloma was until now known exclusively from the Mesozoic of Europe. The new find extends the stratigraphic range of the genus into the early Paleocene. Furthermore, the gastropod fauna of the Faxe Formation is dominated by gastropods with a preference for hard substrates, while soft- substrate genera like Spiniloma are extremely rare.