Yulebacaulis normanii gen. et sp. nov., a new fossil tree fern from south-eastern Queensland, Australia

1991 ◽  
Vol 4 (2) ◽  
pp. 421 ◽  
Author(s):  
WD Tidwell ◽  
AC Rozefelds

Although possibly reworked, a silicified specimen consisting of outer cortex, petioles, aphlebiae and roots was collected from the Lower Cretaceous Mooga Sandstone or Tertiary sediments which lie topographically above the site near Yuleba, Queensland, and represents the new genus and species Yulebacaulis normanii. The petioles in this specimen lack stipular wings and epidermal trichomes or scales. Its clepsydroid-shaped petiolar vascular strands are oblong, straight and elongated tangential to the missing stele. Clusters of parenchyma cells at the ends of the strands form 'peripheral loops' and, at higher levels of the petioles, the 'loops' open, freeing C-shaped aphlebiae traces. Non-filiforrn aphlebiae produced by the petioles are numerous. Yulebacaulis normanii is anatomically similar to Asterochlaenopsis kirgisica (Stenzel) Sahni from the Permian of western Siberia. They differ by the peripheral loops in Y. normanii remaining open after the C-shaped traces depart, rather than staying closed as in A. kirgisica. The trace also begins as a loop in A. kirgisica and not in Y. normanii. Aphlebiae fork repeatedly in the former species and only twice in the latter. Faecal pellets produced by some small animals are present between the petioles, in the aphlebiae, and in borings in the inner and outer cortices of some petioles of Y. normanii. Based upon the size ranges of the faecal pellets, three different animals may have been involved. The pellets are loosely packed, almost filling the galleries, and appear to have been deposited by the animals as they fed upon the cortical cells. The anatomical features of Yulebacaulis are very close to some members of the Zygopteridales. If it is Early Cretaceous in age, then by assigning this genus to this group the age of this order would be extended from Upper Palaeozoic into the mid-Mesozoic.

Zootaxa ◽  
2019 ◽  
Vol 4604 (1) ◽  
pp. 141 ◽  
Author(s):  
CRISTIANO M. PEREIRA ◽  
HELBER A. ARÉVALO-MALDONADO ◽  
PAOLO TRIBERTI ◽  
ROSÂNGELA BRITO ◽  
ROSY M. S. ISAIAS ◽  
...  

Vallissiana universitaria Pereira & Arévalo, a new genus and species of leaf-miner moth (Gracillariidae: Gracillariinae) is described and illustrated with the aid of optical and scanning electron microscopy, including adults, larva, pupa and the mine. Its monophyletic status is confirmed within the subfamily based on a DNA barcode CoI tree. The immature stages are associated with Erythroxylum argentinum O. E. Schulz (Erythroxylaceae) and four larval instars are found, all forming a round blotch mine from the beginning of ontogeny. The first two instars are sap-feeders, using only the epidermal cells, whereas the last two are tissue-feeders, mining the parenchyma cells. Pupation occurs inside the leaf mine within a flimsy, silk-made cocoon. This is the third endemic genus of gracillariid moths described from the Atlantic Forest of Brazil and the first associated with Erythroxylum P. Browne. Characteristics found on the forewing and in the last abdominal segments of the adult were determinant for the proposition of the new genus. The CoI tree indicated that it is closely related to Aspilapteryx, while this genus was recovered as polyphyletic in the analyses. Morphological evidence supports this polyphyly. Consequently, Sabulopteryx Triberti, 1985, stat. nov. is considered a valid genus.


2018 ◽  
Vol 23 (5) ◽  
pp. 969 ◽  
Author(s):  
Pavel B. Klimov ◽  
Alexander A Khaustov

Acarid mites associated with bark beetles feed on fungi, transfer fungal spores, and promote fungal strain recombination inside beetles’ galleries. Many of these mites are omnivorous generalists, with a clear preference to mycetophagy, living in different subcortical habitats, including galleries of bark beetles. We reviewed associations of acarid mites and scolytine beetles numbering 26 mite species in 11 genera associated with 45 bark beetle species in 17 countries (134 unique records total). A new genus and species of acarid mite, Ipsoglyphus bochkovi, gen. and sp. nov. (Acariformes: Acaridae) collected from Ips typographus pheromone traps in Western Siberia, Russia, is described and illustrated from deutonymphs. The new genus differs from all other acarid genera of by a combination of the following characters: two solenidia on genu I, an unpaired eye-spot present on the anterior prodorsum, and palpal supracoxal setae (elc p) lanceolate. As part of this work, we established the following new synonymies and combinations: Halictacarus zakhvatkini (Delfinado and Baker, 1976) comb. nov. from Schulzea (=Schulzea orientalis Putatunda & Kapil, 1995 syn. nov.; Schulzea halicti Putatunda and Kapil, 1995 syn. nov.); Halictacarus indicus (Putatunda & Kapil, 1995) comb. nov. from Schulzea; Forecellinia insolita (Woodring & Moser, 1970) comb. nov. from Anoetus; Histiogaster wichmanni (Türk & Türk, 1957) comb. nov. from Caloglyphus; Reckiacarus sudeticus (Kiełczewski & Wiśniewski, 1975), comb. n. from Histiogaster; Reckiacarus stammeri (F. Türk & E. Türk, 1957) comb. n. from Histiogaster. The following names were emended to agree in gender with the generic name Histiogaster Berlese, 1883 (feminine): Histiogaster iberica Kadzhaya, 1959, Histiogaster robusta Woodring, 1966, Histiogaster rotunda Woodring, 1966, Histiogaster striatissima Mahunka, 1973. Between the variant spellings Histiogaster arborsignum Woodring, 1963 and Histiogaster arborsignis Woodring, 1966, the latter is an incorrect subsequent spelling, however, because it is in prevailing usage, we treat it as correct: Histiogaster arborsignis Woodring, 1963. 


2010 ◽  
Vol 19 (1) ◽  
pp. 54-69
Author(s):  
A.G. Kirejtshuk ◽  
J. Háva ◽  
A. Nel

In the paper six new species of the genus Oisenodes gen. nov. (Dermestidae, Trinodinae, Trinodini) are described: O. azari sp. nov., O. clavatus sp. nov., O. gallicus sp. nov., O. metepisternalis sp. nov., O. oisensis sp. nov. and O. transversus sp. nov. A new tribe Trinoparvini Hava, trib. nov. is established for the recent genus Trinoparvus Háva, 2004. Short review of known fossil records of the subfamily Trinodinae is given.


Zootaxa ◽  
2021 ◽  
Vol 4966 (1) ◽  
pp. 41-53
Author(s):  
ALEXANDER A. KHAUSTOV ◽  
ALEXANDER V. PETROV ◽  
VASILIY B. KOLESNIKOV

A new genus and species, Unguitarsonemus paradoxus n. gen., n. sp. and a new species, Pseudotarsonemoides peruviensis n. sp. (Acari: Trombidiformes: Tarsonemidae), are described based on phoretic females collected on bark beetles Phloeotribus pilula and Ph. biguttatus, respectively, from Peru. A key to species of the genus Pseudotarsonemoides is provided. 


2020 ◽  
pp. 1-6
Author(s):  
Colin D. Sumrall ◽  
Daniel Phelps

Abstract A new genus and species of carneyellid edrioasteroid, Spiracarneyella florencei n. gen. n. sp., is described from the Upper Ordovician (Kaitian) Point Pleasant Formation of northern Kentucky and southern Ohio. Spiracarneyella n. gen. is characterized by having all five ambulacra curving clockwise around the theca, having small node-bearing interambulacral plates in the distal interambulacra, and having the periproct placement slightly offset to the right side of the CD interambulacrum. The oral area of carneyellids evolved by paedomorphosis of the oral plates covering the mouth. The straight ambulacra of Cryptogoleus and the spiraling ambulacra of Spiracarneyella n. gen. evolved by paedomorphosis and peramorphosis, respectively. UUID: http://zoobank.org/79733c8f-0bc8-4e7e-8f77-8508f576755c


1999 ◽  
Vol 73 (5) ◽  
pp. 850-859 ◽  
Author(s):  
A. J. Boucot ◽  
L. R. M. Cocks ◽  
P. R. Racheboeuf

Twelve brachiopod taxa are described from the Early Devonian (probable early Emsian) Pa Samed Formation of southern Thailand, including the new genus and species Quasiprosserella samedensis (Ambocoeliidae?) and the new species Plectodonta forteyi, Caplinoplia thailandensis, and Clorinda wongwanichi. They are the first undoubted Devonian brachiopods from Thailand. They represent the deeper-water Benthic Assemblages BA4-5, and, although clearly indicative of the Old World Realm, cannot be assigned to a particular biogeographical region. A new undescribed fauna from the contemporary Zebingyi Formation of Burma (Myanmar) is also noted.


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.


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