Trace fossil evidence for infaunal moulting in a Middle Devonian non-trilobite euarthropod
نویسندگان
چکیده
منابع مشابه
Basal euarthropod development: a fossil-based perspective
The morphological gap between Euarthropoda (the crown group that contains all extant arthropods) and living arthropod-like animals such as onychophorans, tardigrades and pentastomids is bridged by a number of fossils known primarily from rocks some to million years old (e.g. Fuxianhuia, Chengjiangocaris, Shankouia, see Figure .; cf. Waloszek et al. ). These centimetre-scale fossi...
متن کاملA moment from before 365 Ma frozen in time and space
This study presents a detailed analysis of an exceptionally well-preserved articulated specimen of the trilobite Trimerocephalus from the Late Devonian of the Holy Cross Mountains in Poland. X-ray microtomography reveals the oldest direct evidence for a moulting episode known from the fossil record. The process of moulting as well as associated features observed in the investigated specimen are...
متن کاملA Reappraisal of the North American Species of the Siluro-devonian Trilobite Genus Scotiella
The type material of Scotiella Delo 1935 is redescribed and the generic diagnosis emended to include trilobites in which the anterior and median lateral glabellar furrows are both strongly and poorly defined. The genus now embraces the species Scotiella logani (Hall 1860), S. conservatrix (McLearn 1924) new combination, S. minor (M'Coy 1851), S. samsonowiczi Tomczykowa 1962b and S. opatowiensis...
متن کاملFirst fossil record of parasitism in Devonian calcareous sponges (stromatoporoids).
INTRODUCTION Palaeozoic calcareous sponges (stromatoporoids) are common bio-constructing fossils; they are sometimes found in association with helicoidal structures of unknown biological affinities. The interaction between the tube-forming organisms has usually been classified as commensalism. METHODS About 260 stromatoporoid skeletons from the Middle Devonian (Givetian) of the Mont d'Haurs s...
متن کاملDivision Rhyniophyta - Upper Silurian to Middle Devonian
Among the oldest convincing fossils of early vascular land plants are those of the Division Rhyniophyta. The members of this division consist of: (1) simple axes with cuticle, stomates, epidermis, cortex and a terete (circular) centrarch xylem (xylem development occurs from the center of the stem to the periphery), without well-developed appendages or roots; (2) simple, isotomous branching syst...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2020
ISSN: 2045-2322
DOI: 10.1038/s41598-020-62019-6