Apodosia, an enigmatic new genus of micromorphic brachiopod from the Cretaceous of Crimea, Ukraine, and the Jurassic of England

1995 ◽  
Vol 69 (4) ◽  
pp. 686-692 ◽  
Author(s):  
T. N. Smirnova ◽  
D. I. Mackinnon

The morphology of Argyrotheca lorioli Smirnova, 1972, from the Lower Cretaceous (Berriasian) of Crimea, Ukraine, was reinvestigated using SEM, found to be impunctate, and reassigned as the type species of a new genus Apodosia, new family Apodosiidae, order ?Rhynchonellida. Another micromorphic brachiopod, Spiriferina? oolitica (Moore, 1855) from the Middle Jurassic (Bajocian) Inferior Oolite of Somerset, England, is also reassigned to the new genus.

1988 ◽  
Vol 62 (2) ◽  
pp. 218-233 ◽  
Author(s):  
John Mark Malinky

Concepts of the family Hyolithidae Nicholson fide Fisher and the genera Hyolithes Eichwald and Orthotheca Novak have been expanded through time to encompass a variety of morphologically dissimilar shells. The Hyolithidae is here considered to include only those hyolithid species which have a rounded (convex) dorsum; slopes on the dorsum are inflated, and the venter may be flat or slightly inflated. Hyolithes encompasses species which possess a low dorsum and a prominent longitudinal sulcus along each edge of the dorsum; the ligula is short and the apertural rim is flared. The emended concept of Orthotheca includes only those species of orthothecid hyoliths which have a subtriangular transverse outline and longitudinal lirae covering the shell on both dorsum and venter.Eighteen species of Hyolithes and one species of Orthotheca from the Appalachian region and Western Interior were reexamined in light of more modern taxonomic concepts and standards of quality for type material. Reexamination of type specimens of H. similis Walcott from the Lower Cambrian of Newfoundland, H. whitei Resser from the Lower Cambrian of Nevada, H. billingsi Walcott from the Lower Cambrian of Nevada, H. gallatinensis Resser from the Upper Cambrian of Wyoming, and H. partitus Resser from the Middle Cambrian of Alabama indicates that none of these species represents Hyolithes. Hyolithes similis is here included under the new genus Similotheca, in the new family Similothecidae. Hyolithes whitei is designated as the type species of the new genus Nevadotheca, to which H. billingsi may also belong. Hyolithes gallatinensis is referred to Burithes Missarzhevsky with question, and H. partitus may represent Joachimilites Marek. The type or types of H. attenuatus Walcott, H. cecrops Walcott, H. comptus Howell, H. cowanensis Resser, H. curticei Resser, H. idahoensis Resser, H. prolixus Resser, H. resseri Howell, H. shaleri Walcott, H. terranovicus Walcott, and H. wanneri Resser and Howell lack shells and/or other taxonomically important features such as a complete aperture, rendering the diagnoses of these species incomplete. Their names should only be used for the type specimens until better preserved topotypes become available for study. Morphology of the types of H.? corrugatus Walcott and “Orthotheca” sola Resser does not support placement in the Hyolitha; the affinities of these species are uncertain.


2007 ◽  
Vol 44 (10) ◽  
pp. 1479-1501 ◽  
Author(s):  
John Pojeta Jr. ◽  
Christopher A Stott

The new Ordovician palaeotaxodont family Nucularcidae and the new genus Nucularca are described. Included in Nucularca are four previously described species that have taxodont dentition: N. cingulata (Ulrich) (the type species), N. pectunculoides (Hall), N. lorrainensis (Foerste), and N. gorensis (Foerste). All four species are of Late Ordovician (Cincinnatian Katian) age and occur in eastern Canada and the northeastern USA. Ctenodonta borealis Foerste is regarded as a subjective synonym of Nucularca lorrainensis. No new species names are proposed. The Nucularcidae includes the genera Nucularca and Sthenodonta Pojeta and Gilbert-Tomlinson (1977). Sthenodonta occurs in central Australia in rocks of Middle Ordovician (Darriwilian) age. The 12 family group names previously proposed for Ordovician palaeotaxodonts having taxodont dentition are reviewed and evaluated in the Appendix.


Zootaxa ◽  
2018 ◽  
Vol 4524 (1) ◽  
pp. 77 ◽  
Author(s):  
KEIJI BABA ◽  
SHANE T. AHYONG ◽  
KAREEN E. SCHNABEL

The chirostyloidean squat lobster genus Gastroptychus Caullery, 1896 is revised and is split into two genera: Gastroptychus sensu stricto (type species, Ptychogaster spinifer A. Milne-Edwards, 1880) and Sternostylus new genus (type species, Ptychogaster formosus Filhol, 1884). Gastroptychus sensu stricto, is restricted to nine species with a sternal plastron, at sternite 3, abruptly demarcated from the preceding sternites (excavated sternum) by a distinct step forming a well-defined transverse or concave anterior margin at the articulation with maxillipeds 3, the maxillipeds 3 widely separated, with the distal parts accommodated in the excavated sternum between the left and right maxillipeds 3 when folded, and the P2–4 dactyli with the terminal spine demarcated by a suture. Sternostylus new genus, represented by 12 species, has the sternite 3 anteriorly bluntly produced medially and steeply sloping anterodorsally to the anterior sternite, with a pair of spines directly behind the anterior margin, the left and right maxillipeds 3 adjacent, and the P2–4 dactyli ending in an indistinctly demarcated corneous spine. The above-mentioned characters of Gastroptychus are consistent with Chirostylidae sensu stricto. Published molecular phylogenies indicate, however, that Sternostylus is the sister group to all the other Chirostylidae, and is designated the type genus of a new family, Sternostylidae. 


1956 ◽  
Vol 34 (4) ◽  
pp. 675-687 ◽  
Author(s):  
Roy F. Cain

Phaeotrichum hystricinum Cain and Barr is described from specimens collected in Ontario, Vermont, New York, and Michigan and is made the type species of a new genus. It has been found on porcupine dung from numerous localities. The black, shining, superficial ascocarps are covered with scattered straight black appendages. The clavate stalked asci are in irregular fascicles, eight spored, and with a firm wall which is evanescent at maturity. The ascospores are two-celled, thick-walled, deeply constricted, and readily separating at the transverse septum. There is a large conspicuous germ pore at each end of the ascospore. P. circinatum Cain is described from specimens collected on lemming dung in Northern Ungava, Quebec. This species is distinguished from the former by means of the appendages, which are stouter and curved at the apex. These two species are closely related and very similar to the ostiolate Trichodelitschia bisporula (Crouan) Munk. The new genus is made the type of a new family of cleistocarpous Ascoloculares, with a discussion on the evolution, in many Ascomycete taxa, of cleistocarps adapted either to the utilization of special agencies, rather than air currents, for carrying the ascospores or to delayed dispersal.


Phytotaxa ◽  
2014 ◽  
Vol 181 (4) ◽  
pp. 238 ◽  
Author(s):  
Maarten J.M. Christenhusz ◽  
Samuel F. Brockington ◽  
Pascal-Antoine Christin ◽  
Rowan F. Sage

Molecular studies have shown that Molluginaceae in the traditional sense is polyphyletic. Several genera have already been separated into various families (e.g. Caryophyllaceae, Limeaceae, Lophiocarpaceae, Microteaceae), but recent studies have shown that Macarthuria and Hypertelis also make Molluginaceae polyphyletic if they remain to be included in this family. Hypertelis is biphyletic, with its type species found to belong to Molluginaceae sensu stricto, but the remainder of the genus is to be placed elsewhere. Therefore a new genus, Kewa, is proposed for the rest of Hypertelis, and two new family names are coined: Kewaceae and Macarthuriaceae, which are here morphologically characterized.


Zootaxa ◽  
2008 ◽  
Vol 1681 (1) ◽  
pp. 62 ◽  
Author(s):  
BINGLAN ZHANG ◽  
DONG REN ◽  
HONG PANG

Telmaeshna paradoxica gen. et sp. nov., is described from the Upper Jurassic to Lower Cretaceous Yixian Formation, near Chaomidian Village, Beipiao City, Liaoning Province, China. It is included in the Anisoptera: Aeshnoptera: Aeshnomorpha: Panaeshnida, on the basis of the following characters: strongly elongated pterostigma; well-defined anal loop and Rspl; undulated RP2, RP3/4 and MA; divided hypertriangle and discoidal triangle; and prolonged gaff. It cannot be assigned to any described extant or extinct family of Panaeshnida, but we refrain from erecting a new family to accommodate it until more features (forewing, body characters) are known. Consequently, this new genus is provisionally retained as family uncertain. Its phylogenetic relationships within Anisoptera are discussed.


Zootaxa ◽  
2007 ◽  
Vol 1469 (1) ◽  
pp. 59-64 ◽  
Author(s):  
QI-BIN LIN ◽  
DI-YING HUANG ◽  
A. NEL

A new genus Nodalula gen. nov. and species Nodalula dalinghensis gen. et sp. nov. is described on the basis of a nearly complete specimen from the Lower Cretaceous of North-east China. Its special pattern of wing venation differs from those of the known Mesozoic Cavilabiata genera and allows us to include it in the new family Nodalulaidae within the Neobrachystigmata.


1986 ◽  
Vol 64 (7) ◽  
pp. 1453-1466 ◽  
Author(s):  
Judith E. Skog

Specimens that had been previously considered to represent a fertile fern, Onychiopsis psilotoides (Stokes et Webb) Ward from the English Wealden, have been restudied and are here considered to represent a new genus (Tanydorus) in a new family within the Lycopodiales. Evidence for this new classification of the material includes the combination of a spiral (helical) arrangement of the leaves, presence of an elongated sporangium in the axil of a sporophyll, distinct strobilus borne on the sterile basal portions, and structure of the numerous homosporous spores. The combination of elongated sporangia and details of spore ultrastructure preclude placement in the only family currently assigned to this order, the Lycopodiaceae.


2013 ◽  
Vol 58 (36) ◽  
pp. 4528-4532 ◽  
Author(s):  
ZhaoYang Hu ◽  
GuoHui Li ◽  
GuangTian Li ◽  
Qin Yao ◽  
KePing Chen

2021 ◽  
Author(s):  
Huang Shi-Ke ◽  
Kevin D. Hyde ◽  
Ausana Mapook ◽  
Sajeewa S.N. Maharachchikumbura ◽  
D. Jayarama Bhat ◽  
...  

Abstract Sordariomycetes is an earlier and one of the widely distributed class of Ascomycota. The class was initially classified based on morphology in having inoperculate and unitunicate asci. With the development of DNA based phylogenetic analysis, several undetermined or polyphyletic members of Sordariomycetes were reclassified. However, not all species belonging to this class have been sequenced and analyzed. There are a number of species, especially those old and poorly studied ones which have never been sequenced before and not even recollected again for further taxonomic verification. One of the main objective in this study is to revise and update the taxonomy of several well-known old and poorly studied species whose classification are still obscure. Herein, we re-examined the type materials and/or authentic specimens together to explore 74 relatively poorly-studied genera, which mainly belong to Boliniales, Calosphaeriales, Chaetosphaeriales, Jobellisiales, and Sordariales classified under Diaporthomycetidae and Sordariomycetidae. We provide descriptions, notes, figures and/or drawings and discussed their phylogenetic relationships. As a result, the monotypic Jobellisiales is transferred from Hypocreomycetidae to Diaporthomycetidae. Based on phylogenetic analysis, the polyphyletic Lasiosphaeriaceae is divided into five families, Bombardiaceae (Apodospora, Bombardia, Bombardioidea and Fimetariella), Lasiosphaeriaceae (Anopodium, Bellojisia, Corylomyces, Lasiosphaeria, Mammaria and Zopfiella), Lasiosphaeridaceae (Lasiosphaeris), Strattoniaceae (Strattonia) and Zygospermellaceae (Episternus and Zygospermella). In addition, a new family Neoschizotheciaceae is established based on Neoschizothecium. Analysis of the type species of Boothiella, Stellatospora, Sulcatistroma and Tengiomyces placed them in Sordariaceae, Chaetomiaceae, Hypocreales and Coronophorales, respectively. We classify the genera lacking molecular data based on their morphology and expect them to be recollected; that is, Kacosphaeria in Calosphaeriales; Arnium, Biconiosporella, Camptosphaeria, Diffractella, Emblemospora, Eosphaeria, Periamphispora, Ramophialophora, Synaptospora and Tripterosporella in Sordariales; Conidiotheca in Sordariomycetes; Copromyces, Effetia, Endophragmiella and Tulipispora are accommodated in Ascomycota. Besides, we establish a new genus Neoschizothecium based on phylogenetic analysis. New combinations proposed include: Camaropella amorpha, Cam. microspora, Cam. plana, Cladorrhinum grandiusculum, Cla. leucotrichum, Cla. terricola, Cla. olerum, Helminthosphaeria plumbea, Immersiella hirta, Jugulospora minor, Lasiosphaeris arenicola, Neoschizothecium aloides, Neo. carpinicola, Neo. conicum, Neo. curvisporum, Neo. fimbriatum, Neo. glutinans, Neo. inaequale, Neo. minicaudum, Neo. selenosporum, Neo. tetrasporum, Neurospora autosteira, Podospora brunnescens, P. flexuosa, P. jamaicensis, P. hamata, P. macrospora, P. spinosa, Strattonia petrogale and Triangularia microsclerotigena, T. nannopodalis, T. praecox, T. samala, T. tarvisina, T. unicaudata, T. yaeyamensis. New epithets are proposed for Apiorhynchostoma apiosporum and Podospora dacryoidea.


Sign in / Sign up

Export Citation Format

Share Document