Two new species of Antechinus Macleay (Dasyuridae:Marsupialia) from mid-Pleistocene cave deposits in eastern central Queensland

2010 ◽  
Vol 32 (2) ◽  
pp. 127 ◽  
Author(s):  
Jonathan Cramb ◽  
Scott Hocknull
Keyword(s):  
New Species ◽  
Late Pleistocene ◽  
Mount Etna ◽  
Middle Pleistocene ◽  
Phylogenetic Position ◽  
Dental Morphology ◽  
Large Species ◽  
Extinct Species ◽  
Cave Deposits ◽  
Two New Species

The dasyurid genus Antechinus occurs in numerous Cainozoic fossil sites but until now only one extinct species has been described, Antechinus puteus Van Dyck. Antechinus yammal sp. nov. and A. yuna sp. nov. are described here on the basis of dental remains recovered from middle Pleistocene (between >500 and 205–170 thousand years ago) cave deposits at Mount Etna, eastern central Queensland. Most of these sites are interpreted as closed rainforest palaeoenvironments, and this is the likely habitat of both species. Both taxa are morphologically variable. A. yammal is characterised by complete anterior cingula and well developed posterior cingula on the upper molars; a relatively unreduced, robust P3; and small entoconids. A. yuna is a relatively large species, typified by poorly developed or absent posterior cingula on M1–3, lack of a metacone on M4, and large entoconids on M1–3. Dental morphology suggests that A. yuna was a near relative of the extant A. leo. The dentition of A. yammal shows some similarities to that of A. flavipes, but its exact phylogenetic position is unclear. A. yammal became extinct coincident with the loss of its rainforest habitat some time between 280 and 205–170 thousand years ago. A. yuna survived somewhat longer, but by the late Pleistocene had been replaced by A. flavipes.

Biodiversity in the Andean Mountains: Two new rain frogs of the genus Pristimantis (Anura: Craugastoridae) from the northern Cordillera Central in Colombia

Zootaxa ◽  
2021 ◽  
Vol 5040 (3) ◽  
pp. 334-364
Author(s):  
MAURICIO RIVERA-CORREA ◽  
GUSTAVO A. GONZÁLEZ-DURÁN ◽  
ANA M. SALDARRIAGA-GÓMEZ ◽  
SEBASTIÁN DUARTE-MARÍN
Keyword(s):  
New Species ◽  
Species Delimitation ◽  
Intraspecific Diversity ◽  
Conservation Strategies ◽  
Phylogenetic Position ◽  
The Andes ◽  
Two New Species ◽  
Diversity Studies ◽  
First Time ◽  
Central Cordillera

Frequent biodiversity sampling and monitoring programs often lead to relevant taxonomic findings. Here, as a product of different field expeditions to two places in the northern Andes, we discover and describe two new species of rain frogs of the genus Pristimantis from the cloud forests of the Central Cordillera of Colombia. Pristimantis chocolatebari sp. nov. is diagnosed by having the following character states: dentigerous process of vomer triangular, snout large and protruding, dorsum smooth, vocal slits and vocal sac present, groin and hidden part of the thighs yellow. Pristimantis carylae sp. nov. is diagnosed by having iris copper red, dentigerous process of vomer oval, snout short and rounded, dorsum finely shagreen with scattered tubercles, double nuptial pad in males, groin and hidden part of thighs pink. We also infer, for the first time, the phylogenetic position of P. permixtus, P. platychilus, and two candidate new species. In addition, we emphasize not to use genetic distance as the only source of evidence for species delimitation, considering the high intraspecific diversity found in one of the species described here. Finally, we highlight the relevance of different habitat and ecosystem conservation strategies to promote amphibian diversity studies in the Andes.  

New genus and new species of Pentatomidae from Borneo (Hemiptera: Heteroptera)

Zootaxa ◽  
2021 ◽  
Vol 4958 (1) ◽  
pp. 560-569
Author(s):  
MARCOS ROCA-CUSACHS ◽  
DAVID. A. RIDER ◽  
SUNGHOON JUNG
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Position ◽  
Structure Comparison ◽  
Or Groups ◽  
Two New Species

A new genus, Graziasternum gen. nov., with two new species, Graziasternum graziae sp. nov. and Graziasternum joceliae sp. nov. are described. According to external thoracic and genital structures, this new genus is considered to be the closest extant relative known to the genus Placosternum Amyot & Serville. Discussion of its possible phylogenetic position based on structure comparison, with the discussion on the importance of the characteristics of the thoracic sterna, the genital structures with other genera or groups of genera that share similar structures is given. Additionally, the two new species are keyed and illustrated. 

Two new Banksia species from pleistocene sediments in western Tasmania

1991 ◽  
Vol 4 (3) ◽  
pp. 499 ◽  
Author(s):  
GI Jordan ◽  
RS Hill
Keyword(s):  
Plant Species ◽  
Late Pleistocene ◽  
Environmental Changes ◽  
Middle Pleistocene ◽  
Extinct Species ◽  
The Third ◽  
Taxonomic Groups

Subtribe Banksiinae of the Proteaceae was diverse in Tasmania in the early and middle Tertiary, but is now restricted to two species, Banksia marginata and B. serrata. Rapid and extreme environmental changes during the Pleistocene are likely causes of the extinction of some Banksia species in Tasmania. Such extinctions may have been common in many taxonomic groups. The leaves and infructescences of Banksia kingii Jordan & Hill, sp. nov. are described from late Pleistocene sediments. This is the most recent macrofossil record of a now extinct species in Tasmania. Banksia kingii is related to the extant B. saxicola. Banksia strahanensis Jordan & Hill, sp. nov. (known only from a leaf and leaf fragments and related to B. spinulosa) is described from Early to Middle Pleistocene sediments in Tasmania. This represents the third Pleistocene macrofossil record of a plant species which is now extinct in Tasmania.

Two new species of Roccellaceae (Ascomycota: Arthoniales) from Brazil, with the description of the new genus Sergipea

2013 ◽  
Vol 45 (5) ◽  
pp. 627-634 ◽  
Author(s):  
André APTROOT ◽  
Damien ERTZ ◽  
Edvaneide Leandro de LIMA ◽  
Katia Almeida de JESUS ◽  
Leonor Costa MAIA ◽  
...  
Keyword(s):  
New Species ◽  
New Genus ◽  
Phylogenetic Position ◽  
Generic Type ◽  
Bright Orange ◽  
Two New Species ◽  
Basal Branch ◽  
Close Relationship ◽  
Relationship Of ◽  
A New Species

AbstractThe new lichen genus Sergipea M. Cáceres, Ertz & Aptroot is described in the Roccellaceae, based on the new species Sergipea aurata M. Cáceres, Ertz & Aptroot from NE Brazil. The species was found in a remnant of Atlantic transition forest in Sergipe. It is similar in many respects to species of the genus Enterographa, but it is characterized by bright orange stromata, due to the presence of an anthraquinone, and a thallus with a somewhat byssoid hypothallus. Phylogenetically it is close to the genera Dichosporidium and Erythrodecton. The phylogenetic position of the generic type of Dichosporidium confirms the close relationship of the genus to Erythrodecton in the basal branch of the Roccellaceae. A new species of Enterographa is also described from NE Brazil. Enterographa rotundata E. L. Lima, M. Cáceres & Aptroot has solitary, round apothecia, which is unusual in this genus with mainly elongated apothecia or punctiform apothecia arranged in lines. It was found in Caatinga forest in Pernambuco.

Two New Species of Diploderma Hallowell, 1861 (Reptilia: Squamata: Agamidae) from the Hengduan Mountain Region in China and Rediscovery of D. brevicaudum (Manthey, Wolfgang, Hou, Wang, 2012)

Zootaxa ◽  
2021 ◽  
Vol 4941 (1) ◽  
pp. 1-32
Author(s):  
KAI WANG ◽  
WEI GAO ◽  
JIAWEI WU ◽  
WENJIE DONG ◽  
XIAOGANG FENG ◽  
...  
Keyword(s):  
New Species ◽  
Southwest China ◽  
Mountain Region ◽  
Phylogenetic Position ◽  
Distribution Data ◽  
Hengduan Mountain ◽  
Two New Species ◽  
Dry Valley ◽  
In The Wild ◽  
First Time

Recent studies have highlighted the underestimated diversity of the genus Diploderma Hallowell, 1861 in the Hengduan Mountain Region in Southwest China, but much of the region remains poorly surveyed for reptile diversity. In this study we describe two new species of Diploderma from the upper Jinsha and middle Yalong River Valley, based on evaluations of morphological, genetic, and distribution data. The two new species are morphologically most similar to D. angustelinea and D. vela, but they can be diagnosed from both recognized taxa and all remaining congeners by a suite of morphological features, particularly the distinct coloration of gular spots. Additionally, both new species either render other recognized species paraphyletic or are allopatric with respect to their morphologically similar congeners. Furthermore, we rediscover D. brevicaudum in the wild for the first time, which was known from historical museum specimens only. We estimate the phylogenetic position of D. brevicaudum within the genus Diploderma based on mitochondrial genealogy, and we provide an expanded diagnosis and comparisons against closely related congeners and provide a detailed description of coloration in life based on newly collected specimens. Our discoveries of the new Diploderma species further highlight the urgent conservation needs of the currently neglected hot-dry valley ecosystems in the Hengduan Mountain Region of China. 

Two new species of marine flatworm from southern China facilitate determination of the phylogenetic position of the genus Nerpa Marcus, 1948 and the histochemical structure of the nervous system in the genus Paucumara Sluys, 1989 (Platyhelminthes, Tricladida, Maricola)

Zootaxa ◽  
2019 ◽  
Vol 4568 (1) ◽  
pp. 149 ◽  
Author(s):  
JIA-JIA CHEN ◽  
WEI-XUAN LI ◽  
RONALD SLUYS ◽  
MING-QI WU ◽  
LEI WANG ◽  
...  
Keyword(s):  
Nervous System ◽  
New Species ◽  
Southern China ◽  
Dorsal Side ◽  
The Body ◽  
Integrative Approach ◽  
Phylogenetic Position ◽  
Nerve Structure ◽  
Two New Species ◽  
Copulatory Position

Two new species of flatworm, collected from a beach at eastern Shenzhen, China, were studied through an integrative approach by combining morphological, histological, histochemical (acetylcholinesterase, AChE), and molecular (18S r- DNA) data. These species belong to two genera of marine triclads, previously unrecorded from China, viz. Nerpa Marcus, 1948 and Paucumara Sluys, 1989.        Nerpa fistulata Wang & Chen, sp. nov. is characterized by: transparent body; principally pentamerous intestine with three distinct commissures; two very large, prepharyngeal testis follicles; a semi-circular lens in each eye cup; a penis papilla provided with a chitinized, pointed stylet; lateral bursae communicating with the oviduct and opening ventrally to the exterior via a duct. Phylogenetically N. fistulata groups with one member of the family Bdellouridae. This new, Chinese species of Nerpa introduces a major geographic disjunction, as the type species N. evelinae was described from the bay of Santos, Brazil, so that the genus is now known from both Atlantic as well as Pacific coasts.        The species Paucumara falcata Wang & Li, sp. nov. is characterized by: three distinct pale yellow transverse pigmentation bands on its dorsal side, between which some snowflake-like specks are randomly distributed, and a brown transverse band anteriorly to the eyes; 8–11 testicular follicles on either side of the body, the follicles extending from immediately behind the ovaries to half-way along the pharyngeal pocket; a musculo-parenchymatic organ with a sclerotic, curved tip projecting from the anterior wall of the male atrium, ventrally to the root of the penis papilla. Phylogenetically P. falcata groups with its congener P. trigonocephala, with the genus Paucumara forming the sister taxon of the genus Ectoplana. Comparison of the nerve structure of P. falcata, as revealed by AChE histochemistry, with that of eight other species of triclad suggested that the nervous system of marine planarians is simpler than that of species of freshwater planarians, but revealed also that the nerve structure is rather variable among species.        The copulatory position exhibited by two partners in Paucumara falcata is remarkable in that they intertwine, with their heads pointing downwards and the tails pointing upwards, the entire process lasting about 10 min. Such a copulatory position has never before been reported for triclad flatworms. 

scholarly journals Turtles of the genus Sakya (Geoemydidae): new material from the late Miocene of Russia and Ukraine, new taxonomic diversity and expansion of the stratigraphic range

2015 ◽  
Author(s):  
Elena Syromyatnikova ◽  
Igor Danilov
Keyword(s):  
New Species ◽  
Eastern Europe ◽  
Late Miocene ◽  
Posterior Part ◽  
Detailed Comparison ◽  
Early Pleistocene ◽  
Phylogenetic Position ◽  
Published Data ◽  
Two New Species ◽  
New Material

Background. Sakya Bogachev, 1960 is a genus of geoemydid turtles with unusual scalation of the carapace consisting of 9–10 vertebrals and 8–10 pairs of pleurals. It is known from Neogene localities of Eastern Europe and includes two species: Sakya riabinini (Khosatzky, 1946) (= S. pontica Bogachev, 1960), from the late Miocene (MN13) to early Pleistocene of Eastern Europe (Moldova, Romania, Russia, and Ukraine) and Sakya kolakovskii Chkhikvadze, 1968 from the Pliocene of Abkhazia. Attribution of Melanochelys etuliensis Khosatzky and Redkozubov, 1986 from the early Pliocene of Moldova to Sakya is poorly corroborated. Here we report new material of Sakya from the late Miocene of Russia and Ukraine, which, probably, belongs to one or two new species of this genus and expands its stratigraphic distribution. Methods. We examined new material of Sakya, that includes posterior part of carapace and incomplete plastron from Morskaya 2 locality (MN 13, Rostov Province, Russia), incomplete carapace and plastron from Egorovka locality (MN 12, Odessa Province, Ukraine), and fragmentary shell remains from Fortepianka locality (MN 11, Republic of Adygea, Russia). For comparison we used published data and personal observations on other specimens of Sakya. Results. The specimens from Morskaya 2 and Egorovka are assigned to Sakya based on the presence of increased number of vertebrals and pleurals. Both specimens differ from the described species of Sakya by reduced number of vertebrals (seven in the Morskaya 2 specimen, and five in the Egorovka specimen), and extension of the posteriormost vertebral onto pygal. In addition, they differ from S. riabinini in the presence of eight neurals, longer than wide pleurals, and from S. kolakovskii in the presence of two suprapygals and serrated posterior edge of the carapace. The material from Fortepianka is too fragmentary for detailed comparison, but also differs from S. riabinini in the reduced number of vertebrals. Discussion. The reported material may represent one or two new species of Sakya. The reduced number of vertebrals in these forms probably represents a primitive condition, whereas the extension of the posteriormost vertebral onto the pygal may be a synapomorphy, which unites the new forms. Thus, the Morskaya 2 and Egorovka specimens of Sakya may represent a separate primitive lineage of this genus. In this case, S. kolakovskii and S. riabinini form a more advanced clade with increased number of carapacial scales. These issues as well as phylogenetic position of Sakya within Geoemydidae will be checked by future phylogenetic analysis. The Sakya material from Fortepianka (MN11, late Sarmatian) represents the earliest reliable record of this genus, known previously beginning from MN 12 (Meotic).

Two new species of Tomentella (Thelephorales, Basidiomycota) from Lesser Xingan Mts., northeastern China

Phytotaxa ◽  
2018 ◽  
Vol 369 (2) ◽  
pp. 80 ◽  
Author(s):  
XU LU ◽  
YAN-HONG MU ◽  
HAI-SHENG YUAN
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Maximum Likelihood ◽  
Morphological Characteristics ◽  
Northeastern China ◽  
Phylogenetic Position ◽  
Closely Related Species ◽  
Molecular Analyses ◽  
Two New Species ◽  
Molecular Phylogenetic

Two new species of Tomentella from the Lesser Xingan Mts. of northeastern China, T. pallidocastanea and T. tenuirhizomorpha, are described and illustrated using morphological characteristics and molecular phylogenetic analysis. T. pallidocastanea is characterized by mucedinoid basidiocarps adherent to the substrate, a light reddish brown to pinkish grey hymenophoral surface, absence of rhizomorphs and cystidia, generative hyphae with clamps, rarely with simple septa and echinulate, and subglobose to lobed basidiospores (echinuli up to 1.5 μm long). T. tenuirhizomorpha is characterized by mucedinoid basidiocarps separable from the substrate, a greyish brown to dark brown hymenophoral surface, thin rhizomorphs in the subiculum and margins, an absence of cystidia, generative hyphae with clamps rarely with simple septa and echinulate, and subglobose to globose basidiospores (echinuli up to 1.5 μm long). Molecular analyses using Maximum Likelihood, Maximum Parsimony and Bayesian Analysis confirm the phylogenetic position of the two new species. The discriminating characters of these two new species and their closely related species are discussed in this study.

Description of Deleyia gen. n. with a discussion of its phylogenetic relationships to the genera Daubaylia Chitwood & Chitwood, 1934 and Myolaimus Cobb, 1920 (Nematoda: Rhabditida)

Nematology ◽  
2006 ◽  
Vol 8 (2) ◽  
pp. 223-233 ◽  
Author(s):  
Sven Boström ◽  
Oleksandr Holovachov
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
New Genus ◽  
The Body ◽  
Phylogenetic Position ◽  
Rotting Wood ◽  
Two New Species ◽  
Basal Bulb ◽  
Terrestrial Material ◽  
Cuticular Layer

AbstractThe new genus Deleyia gen. n., including two new species, D. poinari gen. n., sp. n. and D. aspiculata gen. n., sp. n., is described from terrestrial material (rotting wood and moss) in Ukraine. The new genus is inter alia characterised by the outer cuticular layer being defoliated along most of the body, except for labial region and tail posterior to phasmid, forming a cuticular sheath around the body and a vulval cuticular sac in females, and reduced stoma and basal bulb. Deleyia poinari gen. n., sp. n. is separated from D. aspiculata gen. n., sp. n. by a shorter body (L = 600-831 vs 756-945 μm), a shorter PUS (7-18 vs 44-69 μm), longer tail in both females and males (40-50 vs 32-38 μm and 37-48 vs 35 μm, respectively), and presence vs absence of spicules and gubernaculum. The phylogenetic position of Deleyia gen. n. and its relationships to the genera Daubaylia and Myolaimus are discussed.

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