Typen-Katalog der Trilobiten-Sammlung des Naturmuseums und Forschungsinstituts Senckenberg

Basse, Martin; Weddige, Karsten

doi:10.1007/bf03043469

Cited by 6 publications

(6 citation statements)

References 23 publications

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“…nov., respectively). Specimens previously identified as A. asper Haas, 1934 andA. franzhuberi Thach, 2016 belonged to the same clade as A. buelowi, and A. nguyenkhoai Thach, 2020 belonged to the same clade as A. costifer.…”

Section: Resultsmentioning

confidence: 93%

“…von Möllendorff, who did not describe or taxonomically treat this specimen any further. Later, Haas (1934), recognising that there were some differences in shell characters to A. buelowi, described this particular specimen (now deposited in SMF) as a new species, A. asper. Thach (2016) also described a similar species, A. franzhuberi from the border of Nha Trang, Vietnam, which is described to differ from A. buelowi in having a broader shell shape, more swollen body whorls, a less excavated base, a more inflated spire, a rounded anterior end of the outer lip, and monomorphic dextrality (just from four type series).…”

Section: Differential Diagnosismentioning

confidence: 99%

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The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos

Jirapatrasilp,

Huang,

Sutcharit

et al. 2024

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This paper reassesses the taxonomy and systematics of 11 arboreal snail species in the genus Amphidromus from Vietnam, Cambodia, Indonesia and Laos (A. bozhii Wang, 2019, A. buelowi Fruhstorfer, 1905, A. costifer Smith, 1893, A. haematostoma Möllendorff, 1898, A. ingens Möllendorff, 1900, A. madelineae Thach, 2020, A. metabletus Möllendorff, 1900, A. pankowskianus Thach, 2020, A. placostylus Möllendorff, 1900, A. roseolabiatus Fulton, 1896, and A. thachi Huber, 2015). The taxonomic validity of each species is supported by a phylogenetic analysis of mitochondrial COI and 16S rRNA gene fragments from 17 ingroup taxa. Amphidromus buelowi was found to comprise two populations from two distant localities, one from Mount Singgalang, West Sumatra, Indonesia and the other from southern Vietnam. The samples from southern Vietnam were previously described as A. asper Haas, 1934 and A. franzhuberi Thach, 2016, but they are now treated as junior synonyms of A. buelowi in this study. In addition, two species from Vietnam are described as new to science, viz. A. asperoides Jirapatrasilp & Lee, sp. nov. and A. ingensoides Jirapatrasilp & Lee, sp. nov., each of which is conchologically comparable to A. buelowi and A. ingens, respectively.

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Section: Resultsmentioning

confidence: 93%

Section: Differential Diagnosismentioning

confidence: 99%

The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos

Jirapatrasilp,

Huang,

Sutcharit

et al. 2024

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“…Transitory pygidia are known from several Leonaspis and Kettneraspis species (e.g., Chatterton, 1971;Ramsköld & Chatterton, 1991;Chatterton & Speyer, 1997;Chatterton et al, 2006;Basse & Müller, 2016;Alberti, 2021Alberti, , 2023Basse, 2022). These all share well defined pleural ridges carrying a single dorsal spine, and long, weakly to strongly dorsally projected, major border spines.…”

Section: Postcephalic Segmentation and Spines Of Leonaspis And Kettne...mentioning

confidence: 99%

“…In derived species, assessing the nature of the tubercles is not always straightforward without the availability of articulated material. In K. seiberti Basse in Basse & Müller, 2004(Basse & Müller, 2016 the positionings of the P2 spines are gradational, migrating progressively adaxially on thoracic segments three to one where P1 is lacking. In exceptional cases, a tubercle or spine is developed between the P1 and P2 spines on some segments of specimens of this same species (Basse & Müller, 2016, pl.…”

Section: Patterns In Kettneraspismentioning

confidence: 99%

Postcephalic segmentation and spines of the Siluro-Devonian odontopleurine trilobites Leonaspis Richter & Richter and Kettneraspis Prantl & Přibyl, with description of Bruthansovaspis gen. nov. from the Wenlock to Ludlow of the Prague Basin

VAN VIERSEN

2024

Geol. Belg.

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Species of the odontopleurine trilobites Leonaspis Richter & Richter, 1917 and Kettneraspis Prantl & Přibyl, 1949 from the Silurian and the Devonian have been studied. Dorsal tubercle and spine patterns are highly variable and deemed of restricted use. The pygidial segmentation of Leonaspis is consistent among species in the development of a rudimentary inner pleural ridge or wide space between the pleural ridge and the axis. In Kettneraspis, an inner pleural ridge is never developed but the primitive condition is to have a space here. The formation of this ridge and an auxiliary interior border spine pair was arrested prematurely during ontogeny in species assigned to Kettneraspis at present. The type species of the monotypic Rupbachella Alberti, 2021 is regarded as a juvenile Leonaspis. Bruthansovaspis gen. nov. (type species: Acidaspis roemeri Barrande, 1852) is proposed for a Silurian clade of former Kettneraspis species from peri-Gondwana, that are principally distinct in lacking the combination of stunted anterior and macropleural posterior, thoracic segments synapomorphic of Kettneraspis and Leonaspis. The types of Bruthansovaspis roemeri, Bruthansovaspis dormitzeri (Hawle & Corda, 1847), Bruthansovaspis dumortieri (Hawle & Corda, 1847), Kettneraspis propinqua (Barrande, 1852), Kettneraspis lindackeri (Hawle & Corda, 1847) and Bruthansovaspis zenkeri (Hawle & Corda, 1847) (= B. dormitzeri) from the Silurian of the Barrandian, all of which had previously been lumped as dormitzeri, are figured and their classifications revisited. Exceptionally well-preserved odontopleurine material from the Devonian in the Tafilalt (southern Morocco) is described as Kettneraspis freitagi sp. nov. Leonaspis? strix Lütke, 1965 from the Devonian of the Harz Mountains is in need of revision; a previously tentatively assigned pygidium does not belong in that genus.

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“…-The subgenus Pedinopariops (Hypsipariops) was recently elevated to the genus rank by Basse (2006), but we prefer to treat the taxon as a subgenus until there is cladistic support for such an elevation. Overarching similarities make distinctions difficult within the tribe Geesopini, and Pedinopariops (Hypsipariops) has been variably recognized at the subgeneric rank (e.g., Struve 1995), sunken within Pedinopariops (e.g., Basse 1998, Basse & Weddige 2004, or treated as its own distinct genus.…”

Section: Genus Pedinopariops Struve 1972 Subgenus Pedinopariops (Hypmentioning

confidence: 99%

An unusual occurrence of Pedinopariops (Trilobita: Phacopidae) within siliciclastic facies in the Devonian of Awaynat Wanin, Libya

McKellar¹,

Chatterton²,

Meinhold³

et al. 2011

Bull. Geosci.

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A new phacopid trilobite is described from the Givetian sequence of the Awaynat Wanin Group in the southern Ghadamis Basin, Libya. The specimen displays most of the eye and sculpture features necessary for a determination and can be restricted to Pedinopariops (Hypsipariops) Struve, 1982. The new specimen does not belong to any taxon known so far and hence is considered to be a new species. The specimen remains in open nomenclature and is assigned to Pedinopariops (Hypsipariops) sp. nov. A. This is the first Devonian trilobite described from Libya, and represents an unusual occurrence of Phacopidae in a relatively coarse siliciclastic facies.•

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Typen-Katalog der Trilobiten-Sammlung des Naturmuseums und Forschungsinstituts Senckenberg

Cited by 6 publications

References 23 publications

The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos

The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos

Postcephalic segmentation and spines of the Siluro-Devonian odontopleurine trilobites Leonaspis Richter & Richter and Kettneraspis Prantl & Přibyl, with description of Bruthansovaspis gen. nov. from the Wenlock to Ludlow of the Prague Basin

An unusual occurrence of Pedinopariops (Trilobita: Phacopidae) within siliciclastic facies in the Devonian of Awaynat Wanin, Libya

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