Results 41 to 50 of about 852 (169)
Pseudophillipsia (Carniphillipsia) (Trilobite) from the Permian Jamal Formation, Isfahan, Iran [PDF]
The aim of this study is to bridge a gap in the existence of Trilobites in the marine Permian successions of Iran by exploring a stratigraphic section of the Permian in Jamal Formation (Dizlu section). Based on comprehensive field studies and laboratory
H. Ameri, M. Yazdi, A. Bahrami
doaj
Revison of an Atheloptic Visean Trilobite Association in the Moravian Karst (Czech Republic)
Recently two new trilobite occurrences were discovered during geological mapping of fossiliferous shales of the Březina Formation around the village of Březina in the Moravian Karst (Czech Republic).
Rak Štěpán +2 more
doaj +1 more source
Insights into a 429-million-year-old compound eye
In all arthropods the plesiomorphic (ancestral character state) kind of visual system commonly is considered to be the compound eye. Here we are able to show the excellently preserved internal structures of the compound eye of a 429 Mya old Silurian ...
Brigitte Schoenemann +1 more
doaj +1 more source
Palaeozoic correlations and the Palaeogeography of the Sibumasu (Shan-Thai) Terrane - a brief review [PDF]
Furongian sandstones yield shallow-water trilobite faunas along the length of the Sibumasu Terrane in the four regions of NW Malaysia (Langkawi), southern Thailand (Satun), the Shan States of Myanmar and the Baoshan Block of western Yunnan.
Clive Burrett +2 more
doaj +1 more source
Exceptionally preserved Cambrian trilobite digestive system revealed in 3D by synchrotron-radiation X-ray tomographic microscopy. [PDF]
The Cambrian 'Orsten' fauna comprises exceptionally preserved and phosphatised microscopic arthropods. The external morphology of these fossils is well known, but their internal soft-tissue anatomy has remained virtually unknown.
Mats E Eriksson, Fredrik Terfelt
doaj +1 more source
We report the first ontogenetic information for the compression‐preserved Cambrian ecdysozoan worm Cricocosmia jinningensis. Its mosaic growth strategy unifies panarthropod and priapulid developmental patterns. Sclerite allometry reverses at the juvenile‐to‐adult transition, providing the earliest evidence of developmental resource allocation ...
Xiaomei Shi +3 more
wiley +1 more source
Chronostratigraphic Subdivision of the Cambrian of China
The chronostratigraphic framework for the Cambrian of South China is reviewed. Currently four series and nine stages are recognized. The Cambrian of South China is subdivided into one pre-trilobite-bearing series, the Diandongian Series, and three ...
Sanchi Peng
doaj +1 more source
Trilobite Eyes and Their Evolution
Trilobites, as typical euarthropods, possess compound eyes. In 1901, Lindström was the first to describe them in detail; on the one hand, we reconsider his descriptions of the different modes of trilobite eyes; on the other hand, we expand this by ...
Brigitte Schoenemann
doaj +1 more source
The potential functions of mechanoreceptors found on trilobite larva of Limulus polyphemus (Linnaeus, 1758) [PDF]
In this study trilobite larvae and early juvenile stages of Limulus polyphemus (Linnaeus, 1758) are examined using light microscopy and scanning electron microscopy to examine the mechanoreceptors present on the cuticle.
John A. Fornshell
doaj
V.—On the Structure of Trilobites [PDF]
In the Geological Magazine for July, 1871, Plate VIII. pp. 289–294, I published an article on the above subject, giving my views of the appendages of Trilobites, and reproducing the figure of Asaphus platycephalus, Stokes, showing traces of eight pairs of locomotory appendages, discovered by Mr.
openaire +4 more sources

