scholarly journals Notes on some Late Cretaceous goniasterid starfish (Echinodermata, Asteroidea) from Belgium and Germany

2021 ◽  
Vol 73 (3) ◽  
pp. A030321
Author(s):  
John W. M. Jagt ◽  
Elena A. Jagt-Yazykova ◽  
Barry W. M. Van Bakel ◽  
René H. B. Fraaije

Both partially articulated specimens and dissociated marginal ossicles form the basis for erection of two new species of Late Cretaceous goniasterids from the Mons and Liège-Limburg basins (Belgium) and the Hannover area (Germany). Chomataster breizh sp. nov., which recalls the type species, Chomataster acules Spencer, 1913, but differs in several respects, is based on a partial external mould of the marginal frame of disc and arms in flint (upper Campanian Spiennes Chalk Formation; Mons Basin), as well as on a more or less complete individual, preserving small, spherical spines and granules and encased in a flint nodule from the upper Maastrichtian Nekum Member (Maastricht Formation; Liège-Limburg Basin). In Ch. breizh sp. nov., supero- and inferomarginals bear close-set granule pits, of varying sizes, as well as bivalved alveolar scars of pedicellariae; median superomarginals and all inferomarginals lack large, crater-shaped spine pits – such are found only in the disc/arm transition and along the arms. Dissociated supero- and inferomarginal ossicles from the lower and upper Campanian of the Hannover area and the upper Campanian of northeast Belgium, previously recorded either as indeterminate astropectinids or as Nymphaster obtusus (Forbes, 1848) var. nov. and as Nymphaster sp., respectively, here are assigned to Nymphaster mudzborgh sp. nov. This species is characterised by a row of 3–5 large spine pits on the aboral and lateral surfaces of superomarginals; inferomarginals have an angular profile and a close cover of granule pits. Nymphaster tethysiensis Villier, 2001, from the upper Campanian of Landes (southwest France; Villier and Odin, 2001) appears best accommodated in Chomataster as well, because in the arm superomarginals alternate rather than meet over the mid-radial line.

2020 ◽  
Vol 295 (3) ◽  
pp. 243-282
Author(s):  
Andrew Scott Gale

Thoracican cirripedes from the Cretaceous (Albian– Maastrichtian) of Europe (UK, France, Germany) and North Africa (Morocco, Tunisia) are described taxonomicallyand significantly aug - ment the diversity previously known from these regions. The new taxa include: a new zeugmatole - padid, Subsecolepas gen. nov. (type species: S. holtwilsoni sp. nov.), three new cretiscalpellid genera, Witherscalpellum gen. nov., Jagtscalpellum gen. nov. and Striascalpellum gen. nov., including the new species J. africanum, J. spinosum, S. bromleyi , S. barringtonensis and S. elegans and a new scalpellid of the genus Regioscalpellum , R. kennedyi. In addition, the Virgiscalpellinae subfam. nov. includes two new genera, Collinslepas and Virgilepas, with the new species C. aitlaminensis, C. robustus , C. tunisiensis, V. aboudaensis, V. peakei and V. hancocki. Paedomorphic evolution in the sub-family led to forms with reduced numbers of capitular plates. Five new species of Virgiscalpellum are also erected: V. mhrilensis sp. nov., V. multilineatum sp. nov., V. truncatum sp. nov., V. laevis sp. nov. and V. sussexiense sp. nov., as well as a new Proverruca, P. anglica. The Eoverrucidae fam. nov. is erected for the genus Eoverruca, for which two new species, E. aubensis (middle Albian, France) and E. symmetrica (upper Campanian, UK) are described. The record from the Albian takes the origin of the verrucomorph cirripedes back 25 million years. Furthermore, two new species of Brachylepas, B. thieli and B. hantonensis, extend the range of the genus down into the Cenomanian, and a new genus of brachylepadid, Fallaxlepas, is erected, with the type species Pollicipes fallax Darwin , 1851. The stratigraphical distribution of Cretaceous cirripede genera is tabulated and demonstrates a remarkable increase in diversity through the Albian to mid-Campanian, above which there is a minor decrease. The Cretaceous– Paleogene (K/Pg) boundary saw the extinction of 15 cirripede genera.


Zootaxa ◽  
2021 ◽  
Vol 4915 (2) ◽  
pp. 246-254
Author(s):  
YI-MEI WANG ◽  
YE XU ◽  
DMITRY A. DMITRIEV ◽  
CHRISTOPHER H. DIETRICH ◽  
DAO-ZHENG QIN

Two new microleafhopper genera of Empoascini, Thaioasca Wang, Xu & Qin, gen. nov. and Mjolnirus Wang, Xu & Qin, gen. nov., based on the type species, Thaioasca contaminata Wang, Xu & Qin, sp. nov. and Mjolnirus mediolobus Wang, Xu & Qin, sp. nov. are described from Thailand. Male habitus photos and illustrations of male genitalia of these two new species are given. A checklist of Empoascini from Thailand is also provided. 


Zootaxa ◽  
2018 ◽  
Vol 4531 (4) ◽  
pp. 451
Author(s):  
DIEGO AGUILAR FACHIN ◽  
MARTIN HAUSER

The Neotropical genus Himantigera James in James & McFadden, 1982, is revised. Two new species are described and illustrated—H. amauroptera nov. sp. (Costa Rica, Panama, Colombia), and H. xanthopoda nov. sp. (Mexico, Nicaragua, Costa Rica). Three species are transferred from Himantigera to Sargus Fabricius, 1798—S. dichrous (Schiner, 1868) comb. nov., S. flavoniger Lindner, 1928 comb. rev. and S. fulvithorax (Bigot, 1879) comb. nov. One species is transferred to Microchrysa Loew, 1855—M. splendens (Schiner, 1868) comb. nov. Himantigera jamesi Lindner, 1969 syn. nov. is proposed as a junior synonym of H. superba Lindner, 1949. The type species H. silvestris McFadden, 1982, as well as H. nigrifemorata Macquart, 1847 and H. superba Lindner, are herein redescribed and illustrated. Photographs of the type specimens of these three species are provided. Two unnamed species of Himantigera (sp. A and sp. B) are also described given that they have slight differences, but because we had only one specimen of each species, we did not officially describe them. This updates the total number of extant Himantigera from eight sensu Woodley (2001) to seven species. The species Merosargus apicalis Lindner, 1935, although never referred to the genus Himantigera or Himantoloba McFadden 1970, is also transferred to the genus Sargus. A key to all species of Himantigera and a map expanding geographical distribution of the genus are also presented, with the first records of the genus for Nicaragua, Colombia, Venezuela, Trinidad and Tobago, Ecuador and Bolivia. 


Zootaxa ◽  
2007 ◽  
Vol 1515 (1) ◽  
pp. 1-29 ◽  
Author(s):  
JEAN JUST ◽  
GEORGE D.F. WILSON

The paramunnid genera Austrosignum Hodgson, 1910 (type species A. glaciale Hodgson, 1910) and Munnogonium George & Strömberg, 1968 (type species M. waldronense George & Strömberg, 1968) are re-diagnosed. Twenty seven species are reviewed. Austrosignum is restricted to two described species, Munnogonium to five described species. The remaining 20 species are placed in the following eight new genera: Boreosignum (type species Austrosignum maltinii Schiecke & Fresi, 1972), Cryosignum (type species Paramunna lunata Hale, 1937), Meridiosignum (type species M. macquariensis sp. nov.), Tethygonium (type species T. quadricuspis sp. nov.), Quetzogonium (type species Austrosignum dentatum Winkler, 1994), Advenogonium (type species Austrosignum fuegiae Doti & Roccatagliata, 2005), Zizzygonium (type species Paramunna magellanensis Winkler, 1994), Kussakinella (type species Austrosignum spinosum Kussakin, 1982).


Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 395-412 ◽  
Author(s):  
BRENDA LÍA DOTI ◽  
MADHUMITA CHOUDHURY ◽  
ANGELIKA BRANDT

A new genus of Paramunnidae, Holodentata (type species: Paramunna gaussi Vanhöffen, 1914) is erected. The new genus comprises two new species: H. caeca, from the deep Weddell Sea and H. triangulata, from the Ross Sea. The new genus is distinguished by the following characters: article 3 of the antenna short and with strong denticles, mandible palp absent, article 2 of maxilliped palp longest, coxal plates visible in dorsal view in all pereonites, pleotelson broad and laterally denticulated.


Zootaxa ◽  
2013 ◽  
Vol 3630 (2) ◽  
pp. 201-224 ◽  
Author(s):  
CHAO ZHANG ◽  
ADRIANO B. KURY ◽  
FENG ZHANG

The harvestman genus Bonea Roewer, 1914 and its type species B. sarasinorum Roewer, 1914 are redescribed based on the type material. In addition, two new species of Bonea from Hainan Island, China, are described and illustrated: B. zhui sp. nov. and B. tridigitata sp. nov. A new species of Lomanius Roewer, 1923 from Yunnan Province, China, is also described and illustrated: L. bulbosus sp. nov.. Keys to the 10 species of Bonea and the six species of Lomanius are provided. Paralomanius Goodnight & Goodnight, 1948 is revalidated from the synonymy of Lomanius, carrying as junior synonym Eulomanius Roewer, 1949, and containing two species from Micronesia (Paralomanius longipalpus Goodnight & Goodnight, 1948) and Philippines (Paralomanius mindanaoensis (Suzuki, 1977) new status). Bonea is transferred from the Ibaloniinae to Podoctinae. These are the first records of named species of Podoctidae from China.


1990 ◽  
Vol 21 (3) ◽  
pp. 281-288
Author(s):  
M.M. Stevens

AbstractThe genus Mitelloides Evans is revised. Three species are recognised and described; M. moaensis Evans (the type species) and two new species, M. thorntonensís and M. mouldsi. A key to the males of the genus is provided, and the known distributions of all species are mapped. The genus is known only from north-east Queensland, the Torres Strait Islands, and Papua New Guinea.


Zootaxa ◽  
2018 ◽  
Vol 4407 (2) ◽  
pp. 213 ◽  
Author(s):  
DAVID CHAMÉ-VÁZQUEZ ◽  
GUILLERMO IBARRA-NÚÑEZ ◽  
MARIA LUISA JIMÉNEZ

The female of Phonotimpus separatus Gertsch & Davis (the type species of the genus) is redescribed from a specimen collected at the type locality, and two new species of Phonotimpus from Mexico are described: P. pennimani sp. nov. and P. talquian sp. nov. A more detailed description of P. separatus is provided to better distinguish them from related taxa. The two new species are closely related; males and females of both species share several somatic and genitalic characters not found in P. separatus. The resemblance of both new species to P. separatus is discussed. 


Zootaxa ◽  
2021 ◽  
Vol 4908 (3) ◽  
pp. 369-392
Author(s):  
BRIAN W. BAHDER ◽  
MARCO A. ZUMBADO ECHAVARRIA ◽  
EDWIN A. BARRANTES BARRANTES ◽  
ERICKA E. HELMICK ◽  
CHARLES R. BARTLETT

Recent survey work for planthoppers at La Selva Biological Station in Costa Rica found two new species allied with Cenchrea Westwood. The cytochrome c oxidase subunit I (COI) and 18S were sequenced for the new taxa and used these data to assess the genus-level standing of the new taxa. The new taxa do not cluster with Cenchrea dorsalis Westwood, the type species of Cenchrea. A new genus Tico gen. n. described for the reception of new species described as Tico emmettcarri sp. n. (the type species) and Tico pseudosororius sp. n. Cenchrea sororia Fennah is moved to Tico gen. n., to form the new combination Tico sororius (Fennah). Tico gen. n. is compared with allied genera, and review genus-level diagnostic features and the species composition of Cenchrea, which appears to be compositionally heterogenous, but additional data is needed to evaluate genus-level placement of most species. 


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