Delgadobius amazonensis—a new genus and species of the subtribe Philonthina from Amazonia (Coleoptera: Staphylinidae: Staphylininae)

Zootaxa ◽  
2012 ◽  
Vol 3568 (1) ◽  
pp. 81 ◽  
Author(s):  
MARIANA CHANI-POSSE ◽  
GUY COUTURIER

Delgadobius amazonensis Chani-Posse & Couturier, gen. et sp. nov., a new genus and species of the subtribe Philonthina (tribe Staphylinini) from Amazonia, is described and illustrated. The potential phylogenetic relationships of Delgadobius with other Neotropical genera of Philonthina are discussed. Distributional and bionomic data are also provided. Delgadobius amazonensis is reported in association with four species of palm trees (Arecaceae).

Zootaxa ◽  
2006 ◽  
Vol 1237 (1) ◽  
pp. 1 ◽  
Author(s):  
SERGE KREITER ◽  
MARIE-STÉPHANE TIXIER

The phytoseiid mite Africoseiulella flechtmanni gen. nov., sp. nov. is described from specimens collected on an unknown small weed growing under palm trees in an oasis in southern Tunisia. This mite is unique in the following combination of characteristics: dorsal shield of both sexes and male ventri-anal shield eroded; all dorsal shield setae minute; peritreme very short; setae JV1, JV3, JV4 and ZV1 absent; hypostome elongate; chelicera with long median segment but digits short and edentate; legs short and without macrosetae. The phylogenetic relationships of this new genus with close taxa are analysed; its taxonomic position within the Typhlodrominae is uncertain.


1995 ◽  
Vol 69 (2) ◽  
pp. 376-380 ◽  
Author(s):  
Daniel B. Blake ◽  
Keith Sturgeon

Aldebarania arenitea (Astropectinidae; Asteroidea; Echinodermata) is described from the Rocky Point Member of the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina. A turbulent, shallow-water environment is suggested by sedimentary features, a diverse marine fauna, and the morphology of Aldebarania. Aldebarania appears to be a partial ecological equivalent of living Astropecten and Luidia; however, phylogenetic relationships within the Astropectinidae are unstudied and the origin of similarities is unknown.


Zootaxa ◽  
2017 ◽  
Vol 4300 (4) ◽  
pp. 451 ◽  
Author(s):  
JEAN-FRANÇOIS LANDRY ◽  
VAZRICK NAZARI ◽  
OLEKSIY BIDZILYA ◽  
PETER HUEMER ◽  
OLE KARSHOLT

The Holarctic genus Agonochaetia is reviewed and a new species, Agonochaetia shawinigan Landry, sp. nov. is described from Québec, Canada. In addition, a new glandiductor-bearing genus and species, Canarischema fuerteventura Karsholt, gen. nov., sp. nov. is described from the Canary Islands. Comparative diagnoses, a key to species, illustrations of external aspect, male and female genitalia are provided for all species. Most species of Agonochaetia are rarely collected and known only from their types or from very few specimens. DNA barcodes are provided for four of the species from which DNA was recovered. Analysis of DNA barcodes suggests that Agonochaetia may be paraphyletic. Phylogenetic relationships to other Gnorimoschemini genera bearing a pair of glandiductors above the phallus are discussed. 


1986 ◽  
Vol 60 (4) ◽  
pp. 911-919 ◽  
Author(s):  
William P. Wall ◽  
Earl Manning

A new genus and species of amynodontid rhinoceros, Rostriamynodon grangeri, from the early Late Eocene of Inner Mongolia, People's Republic of China, is the most primitive amynodontid recognized to date. Rostriamynodon exhibits the major diagnostic characteristics of amynodontids: quadratic M3, preorbital fossa, and loss of upper and lower P1. It differs from more advanced members of the family in its long preorbital region and lower cheek tooth morphology. Comparisons with other Eocene ceratomorphs show the crucial position Rostriamynodon has in determining phylogenetic relationships between rhinocerotoids and tapiroids. Evidence is presented for the monophyly of the Rhinocerotoidea, including amynodontids.


2010 ◽  
Vol 84 (4) ◽  
pp. 695-708 ◽  
Author(s):  
Andrea Jiménez-Sánchez ◽  
Robert L. Anstey ◽  
Beatriz Azanza

The new genus Iberostomata (Bryozoa, Ptilodictyina) from the Cystoid Limestone Formation in the Iberian Chains (NE Spain) is here described and its phylogenetic relationships analyzed using cladistic methods. Twenty-eight identifying characters used in traditional systematics have been codified for nine ptilodictyine families, two timanodictyine families and 34 ptilodictyine genera. The results obtained in this analysis place the new genus Iberostomata and the genus Stellatodictya, traditionally included in the family Ptilodictyidae, in the family Rhinidictyidae, question the validity of the family Intraporidae, question the assignment of Amurodictya and Astrovidictya to the family Stictoporellidae, as well as the assignment of the genera Junggarotrypa, Goniotrypa, and Prophyllodictya to the family Rhinidictyidae, and place the family Phragmopheridae in a uncertain systematic position.


2000 ◽  
Vol 74 (2) ◽  
pp. 224-229 ◽  
Author(s):  
Dale Tshudy ◽  
Ulf Sorhannus

A new genus and species of clawed lobster, Jagtia kunradensis, is described from the Upper Cretaceous (Upper Maastrichtian) Kunrade Limestone facies of the Maastricht Formation, The Netherlands. Three nephropid lobster genera and at least three species (Oncopareia bredai Bosquet, 1854, sensu Tshudy, 1993, Oncopareia sp. Tshudy, 1993, Hoploparia beyrichi Schlüter, 1862, and Jagtia kunradensis) have now been collected from limestones of the Maastrichtian type area (southeastern Netherlands and northeastern Belgium). Cladistic methods were employed in re-evaluating the phylogenetic relationships of the nephropid lobsters, including Jagtia. These analyses indicate that Jagtia is part of a clade that includes the recent Thymops and Thymopsis. The new genus is the first fossil form to be closely allied with these deep-water genera.


PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2321 ◽  
Author(s):  
Alexandra T. Boersma ◽  
Nicholas D. Pyenson

The diversification of crown cetacean lineages (i.e., crown Odontoceti and crown Mysticeti) occurred throughout the Oligocene, but it remains an ongoing challenge to resolve the phylogenetic pattern of their origins, especially with respect to stem lineages. One extant monotypic lineage,Platanista gangetica(the Ganges and Indus river dolphin), is the sole surviving member of the broader group Platanistoidea, with many fossil relatives that range from Oligocene to Miocene in age. Curiously, the highly threatenedPlatanistais restricted today to freshwater river systems of South Asia, yet nearly all fossil platanistoids are known globally from marine rocks, suggesting a marine ancestry for this group. In recent years, studies on the phylogenetic relationships in Platanistoidea have reached a general consensus about the membership of different sub-clades and putative extinct groups, although the position of some platanistoid groups (e.g., Waipatiidae) has been contested. Here we describe a new genus and species of fossil platanistoid,Arktocara yakataga, gen. et sp. nov. from the Oligocene of Alaska, USA. The type and only known specimen was collected from the marine Poul Creek Formation, a unit known to include Oligocene strata, exposed in the Yakutat City and Borough of Southeast Alaska. In our phylogenetic analysis of stem and node-based Platanistoidea,Arktocarafalls within the node-based sub-clade Allodelphinidae as the sister taxon toAllodelphis pratti. With a geochronologic age between ∼29–24 million years old,Arktocarais among the oldest crown Odontoceti, reinforcing the long-standing view that the diversification for crown lineages must have occurred no later than the early Oligocene.


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