Results 31 to 40 of about 3,513 (132)

Carboniferous plants preserved within sideritic nodules : a remarkable state of preservation providing a wealth of information [PDF]

, 2012
Fossil plants preserved within sidertitic nodules have been known from Europaean and North American Carboniferous coal measures since the early 19th Century. However, only a few of them have been described thoroughly palaeobotanically, mainly in the 19th
Pacyna, Grzegorz, Zdebska, Danuta
core  

Competition and mimicry: the curious case of chaetae in brachiopods from the middle Cambrian Burgess Shale [PDF]

, 2015
Background: One of the first phyla to acquire biomineralized skeletal elements in the Cambrian, brachiopods represent a vital component in unraveling the early evolution and relationships of the Lophotrochozoa.
Jean-Bernard Caron, Lars E Holmer, Luke C Strotz, Noel N Tait, Timothy P Topper, Zhifei Zhang   +5 more
core   +3 more sources

Mineralization Controls Informative Biomarker Preservation Associated With Soft Part Fossilization in Deep Time

Geobiology, Volume 23, Issue 5, September/October 2025.
ABSTRACT Diagenetically mineralized fossil tissues represent invaluable paleobiological evidence of past life. Lipid biomarkers may be identified alongside fossils, yet the relationship between localized, diagenetic mineral precipitation, and lipid preservation remains underexplored.
Madison Tripp, Jasmina Wiemann, Luke Brosnan, William D. A. Rickard, Vivi Vajda, Michael Ernst Böttcher, Paul F. Greenwood, Kliti Grice   +7 more
wiley   +1 more source

Soft-tissue and dermal arrangement in the wing of an Early Cretaceous bird:Implications for the evolution of avian flight [PDF]

, 2015
Despite a wealth of fossils of Mesozoic birds revealing evidence of plumage and other soft-tissue structures, the epidermal and dermal anatomy of their wing’s patagia remain largely unknown.
Chiappe, Luis M, D. Buscallioni, Angela, Marugán-Lobón, Jesús, Navalon, Guillermo, Sanz, José Luis   +4 more
core   +2 more sources

Revised phylogenomic analysis and Cretaceous fossil evidence reveal new insights into evolution of Scirtinae (Coleoptera: Scirtidae)

Journal of Systematics and Evolution, Volume 63, Issue 5, Page 1166-1178, September 2025.
The molecular phylogeny of Scirtinae based on ultraconserved elements is reanalyzed using the site‐heterogeneous model CAT‐GTR+G4. A new scirtine fossil, Serracyphon philipsi gen. et sp. nov., is reported from mid‐Cretaceous Kachin amber, and its placement is evaluated in light of the updated phylogenomic framework of Scirtinae.
Yan‑Da Li, Rafał Ruta, Di‑Ying Huang, Chen‑Yang Cai   +3 more
wiley   +1 more source

The earliest annelids: Lower Cambrian polychaetes from the Sirius Passet Lagerstätte, Peary Land, North Greenland [PDF]

, 2008
Apart from the Phyllopod Bed of the Burgess Shale (Middle Cambrian) polychaete annelids are practically unknown from any of the Cambrian Lagerstätten. This is surprising both because their diversity in the Burgess Shale is considerable, while to date the
Conway Morris, S., Peel, J. S.
core   +1 more source

Negative ontogenetic allometry of cardinal spines in the early Cambrian arthropod Isoxys volucris indicates their defensive function

Palaeontology, Volume 68, Issue 4, July/August 2025.
Abstract The characteristic cardinal spines of Isoxys, a cosmopolitan bivalved arthropod, have been focal to understanding its role in Cambrian ecosystems. It has been proposed that the spines had either a hydrodynamic function, to aid buoyancy, or a defensive function, to protect against predators.
Morten Lunde Nielsen, Mirinae Lee, Philip R. Wilby, Tae‐Yoon S. Park, Arne T. Nielsen, Jakob Vinther   +5 more
wiley   +1 more source

An enigmatic teleost fish from the Eocene of Bolca (Italy) with unusual larval‐like features

Papers in Palaeontology, Volume 11, Issue 3, May/June 2025.
Abstract ‘Pegasus’ volans is a highly unusual fossil teleost fish from the celebrated Eocene Bolca Lagerstätte. The fossil, known on the basis of two specimens, has been historically assigned to seamoths (Pegasidae), then to oarfishes and relatives (Lampriformes).
Donald Davesne, Giorgio Carnevale
wiley   +1 more source

Evidence for gill slits and a pharynx in Cambrian vetulicolians: implications for the early evolution of deuterostomes. [PDF]

, 2012
BACKGROUND: Vetulicolians are a group of Cambrian metazoans whose distinctive bodyplan continues to present a major phylogenetic challenge. Thus, we see vetulicolians assigned to groups as disparate as deuterostomes and ecdysozoans.
Chen, Ailin, Han, Jian, Liu, Jianni, Morris, Simon Conway, Ou, Qiang, Shu, Degan, Zhang, Xingliang, Zhang, Zhifei   +7 more
core   +5 more sources

A new euarthropod from the Soom Shale (Ordovician) Konservat‐Lagerstätte, South Africa, with exceptional preservation of the connective endoskeleton and myoanatomy

Papers in Palaeontology, Volume 11, Issue 2, March/April 2025.
Abstract A new exceptionally preserved euarthropod, Keurbos susanae gen. et sp. nov. from the Upper Ordovician Soom Shale Konservat‐Lagerstätte of South Africa, is described herein. Two specimens exhibit an unusual preservation style such that the cuticular exoskeleton is preserved in low relief but retains high‐fidelity details, whereas the internal ...
Sarah E. Gabbott, Gregory D. Edgecombe, Johannes N. Theron, Richard J. Aldridge   +3 more
wiley   +1 more source