Results 1 to 10 of about 157,520 (337)

Gonnardite; re-examination of holotype material and discreditation of tetranatrolite [PDF]

open access: bronzeAmerican Mineralogist, 1999
Gonnardite is a fibrous zeolite. Its chemical variability and the frequent close association with thomsonite and other zeolites have made the chemical and crystal structural definition of the mineral difficult. Only recently was the structural relationship to natrolite confirmed unambiguously by single crystal X-ray diffractometry. The present chemical
Gilberto Artioli, Ermanno Galli
openalex   +4 more sources

Benchmarking in Taxonomy: The Role of the Holotype

open access: yesTaxonomy
Benchmarking in taxonomy is viewed both as establishing a specimen as a standard of reference and as a process for optimizing that process. Here, it is founded on vision theory that recognition of specimens, as for all objects, is personal to the ...
George H. Scott
doaj   +2 more sources

ADDITIONAL COMMENTS TO “REPRESENTATIVES OF SOME DIAGNOSTIC AGGLUTINATED FORAMINIFERAL GENERA OF THE SUBCLASS MONOTHALAMANA (Bathysiphon, Orbulinelloides, Repmanina, Miliammina, Agglutinella, Dentostomenia, Ammomassilina, Psammolingulina) IN THE TETHYS” BY ANAN (2021) [PDF]

open access: yesGeological Behavior, 2022
The species is Orbulinelloides kaminskii Anan, 2021 was described based on an illustration published by Kaminski & Huang in 1991. In this study we located and investigated the type specimen of O.
Anna Waskowska, Michael A. Kaminski
doaj   +1 more source

Hieracium micevskii (Asteraceae), a new species from North Macedonia [PDF]

open access: yesBotanica Serbica, 2022
Hieracium micevskii is described and illustrated as a species new to science from the western part of North Macedonia. Taking into consideration the morphological characteristics, its origin is assumed to be hybrid.
Aco Teofilovski
doaj   +1 more source

Taxonomy, Systematics and Evolution of Giant Deer Megaloceros Giganteus (Blumenbach, 1799) (Cervidae, Mammalia) from the Pleistocene of Eurasia

open access: yesQuaternary, 2021
The article presents a preliminary morphological description of the holotype of Megaloceros giganteus (Blumenbach, 1799) that serves for the description of the species.
Roman Croitor
doaj   +1 more source

Charniodiscus and Arborea Are Separate Genera Within the Arboreomorpha: Using the Holotype of C. concentricus to Resolve a Taphonomic/Taxonomic Tangle

open access: yesFrontiers in Earth Science, 2022
Charniodiscus is one of the most iconic and first described of the Ediacaran frondose taxa. Since the diagnosis of the holotype of C. concentricus in 1958, the scarcity and poor preservation of unequivocal specimens has resulted in genus-level taxonomic ...
Daniel Pérez-Pinedo   +4 more
doaj   +1 more source

Type specimens of Zygaenidae in the National Museum of Natural History, Sofia (Lepidoptera)

open access: yesHistoria naturalis bulgarica, 2021
This paper comprises an annotated list of the type material of Zygaenidae kept in the National Museum of Natural History at the Bulgarian Academy of Sciences in Sofia.
Stanislav Abadjiev   +1 more
doaj   +1 more source

The holotype of the basal archosauromorph Prolacerta broomi revisited [PDF]

open access: yesActa Palaeontologica Polonica, 2023
Prolacerta broomi is one of the most important of fossil reptiles. First considered as one of the earliest members of squamates, this basal archosauromorph has been used as a model for diapsid morphological evolution ever since its discovery, playing ...
GABRIELA SOBRAL
doaj   +1 more source

Taxonomic clarifications concerning the crocodyliform genus Isisfordia [PDF]

open access: yesPeerJ, 2020
Background In a recent paper, a new species of the crocodyliform genus Isisfordia was erected based on, in part, a specimen previously designated as the holotype of ‘Crocodylus (Bottosaurus)’ selaslophensis. This new species was given the name Isisfordia
Lachlan J. Hart
doaj   +2 more sources

Corrigendum: Kato M, Kawakita A (2023) Diversity and larval leaf-mining habits of Japanese jewel beetles of the tribe Tracheini (Coleoptera, Buprestidae). ZooKeys 1156: 133–158. doi: 10.3897/zookeys.1156.97768 [PDF]

open access: yesZooKeys, 2023
We recently published the description of two new buprestid beetle species Habroloma elaeocarpusi and Habroloma taxillusi (Kato and Kawakita 2023). However, no holotype depository is indicated in the paper.
Makoto Kato, Atsushi Kawakita
doaj   +3 more sources

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