A5004462104- Marine Sponges and Natural Products
- Marine Biology and Ecology Research
- Coral and Marine Ecosystems Studies
- Paleontology and Stratigraphy of Fossils
- Marine Biology and Environmental Chemistry
- Marine Ecology and Invasive Species
- Geological Formations and Processes Exploration
- Geology and Paleoclimatology Research
- Crustacean biology and ecology
- Marine and environmental studies
- Paleontology and Evolutionary Biology
- Genomics and Phylogenetic Studies
- Geological formations and processes
- Diatoms and Algae Research
- Ichthyology and Marine Biology
- Marine and coastal plant biology
- Plant and Fungal Species Descriptions
- Parasite Biology and Host Interactions
- Fish Biology and Ecology Studies
- Botany and Plant Ecology Studies
- Biomedical Text Mining and Ontologies
- Geological and Geophysical Studies
- Aquatic Invertebrate Ecology and Behavior
- Maritime and Coastal Archaeology
- Plant Diversity and Evolution
Polish Academy of Sciences
2015-2025
Institute of Paleobiology
2015-2025
La Trobe University
2019
University of New Orleans
1996
University of Kansas
1996
United States Geological Survey
1996
Sponges are probably the earliest branching animals and their fossil record dates back to Precambrian. Identifying skeletal structure composition is thus a crucial step in improving our understanding of early evolution metazoans. Here, we present discovery 505–million-year-old chitin, found exceptionally well preserved Vauxia gracilenta sponges from Middle Cambrian Burgess Shale. Our new findings indicate that, given right fossilization conditions, chitin stable for much longer than...
Phymaraphiniidae Schrammen 1924 (Porifera: Astrophorina) is a family of lithistid demosponges that has received little attention in the past decades. The systematic problems within this have not been addressed for long time due to absence new records and material. genus Exsuperantia Özdikmen 2009 was first described by Schmidt (1879) as Rimella allocate species clava, found Caribbean. In 1892, Topsent what he thought be same Azores, synonymized it with Racodiscula belonged Theonellidae...
Abstract Background and aims Phytoliths are microscopic siliceous structures produced in specific tissues by many plant families. The morphological features of phytoliths diagnostic for taxa, given their inorganic composition often become part the fossil record. We use phytolith remains from lacustrine sediments to document conclusive presence Arecaceae (palms) subarctic Canada during late early Eocene (48 Ma). Methods Palm aquatic microfossils were extracted mudstones a drill core taken...
Reconciling the fossil record with molecular phylogenies to enhance understanding of animal evolution is a challenging task, especially for taxa mostly poor record, such as sponges (Porifera). 'Lithistida', polyphyletic group recent and sponges, are an exception they provide richest among demosponges. Lithistids, currently encompassing 13 families, 41 genera >300 species, defined by common possession peculiar siliceous spicules (desmas) that characteristically form rigid articulated...
Research Article| September 01, 2000 Eocene spiculites and spongolites in southwestern Australia: Not deep, not polar, but shallow warm Paul R. Gammon; Gammon 1Department of Geological Sciences, Queen's University, Kingston, Ontario K7L 3N6, Canada Search for other works by this author on: GSW Google Scholar Noel P. James; James Andrjez Pisera 2Institute Paleobiology, Polish Academy ul. Twarda 51/55, 00-818 Warsaw, Poland Geology (2000) 28 (9): 855–858....
Glass sponges (Class Hexactinellida) are important components of deep-sea ecosystems and interest from geological materials science perspectives. The reconstruction their phylogeny with molecular data has only recently begun shows a better agreement morphology-based systematics than is typical for other sponge groups, likely because greater number informative morphological characters. However, inconsistencies remain that have far-reaching implications hypotheses about the evolution major...
Sponges are one of the most ancient animal phyla with about 8850 living species and 5000 described fossil taxa.Most sponges marine live at all depths oceans.Freshwater bodies (lakes, rivers) inhabited only by a small minority species, ca.
Abstract Transmitted light microscope and SEM observations of various growth stages, including very young forms, lithistid demosponge spicules called desmas provided a wealth new on silica deposition in most groups. In typical (pachastrellid) demosponges basic feature is the formation granules (100–160 nm diameter) deposited more or less regular concentric layers. Further stages are similar, only smaller densely packed. The shape spicule controlled by an organic axial filament, while...
Several lithistid sponges are described from Mediterranean caves occurring in the northwestern and Adriatic basins. In Corallistidae, Neoschrammeniella bowerbanki Neophrissospongia nolitangere recorded for first time Mediterranean, whereas radjae n. sp. endoumensis as new. Theonellidae, common sponge previously identified Discodermia polydiscus is polymorpha Fossil specimens 3PP cave tentatively attributed to bowerbanki. The distribution affinities of this fauna discussed.
We compared sponge spicules occurring in surface sediments with those of a living community shallow-water reef environment Bocas del Toro archipelago, Panama, the goal evaluating how faithfully spicular analysis reflects community. Most megasclere morphotypes present species are also found sediment. On contrary, microscleres underrepresented sediment samples. Apart from that belong to taxa live at area, some have no equivalent known Forty sponges been recognized study but 9 (22%) do not...
We report the oldest fossil occurrence of freshwater potamolepid sponges (Demospongiae, Spongillina, Potamolepidae) to date, originating from middle Eocene lake sediments accumulated in Giraffe kimberlite maar, northern Canada. Sponges are represented by strongyle spicules that gemmuloscleres. These described herein as belonging a new species, Potamophloios canadensis . Because most similar extant inhabit subtropical tropical water bodies, these observations provide further evidence...
Here we report, for the first time, a very rich and diversified sponge assemblage from late Early Miocene deposits of central part Vienna Basin (Paratethys) in Slovakia. Bodily preserved sponges are described as new genus species Paracinachyrella fossilis (Tetiliidae, Demospongiae). Dissociated spicules reveal presence "soft" demosponges that belong to families Tetillidae, Theneidae, Geodiidae, Samidae, Thrombidae, Thoosidae, Agelasidae, Myxillidae, Bubaridae, Tedaniidae, lithistid family...
The rich fauna of Late Devonian (Late Frasnian) siliceous sponges from the Holy Cross Mountains, Poland is composed 15 species and 11 genera. Both astylospongid demosponges (lithistids) hexactinosan hexactinellids are present. following new genera and/or proposed: D regulara Rigby Pisera sp. nov., Jazwicella media gen. et Astyloscyphia irregularia A. turbinata Astylotuba modica Paleoregulara cupula Paleoramospongia bifurcata Cordiospongia conica Paleocraticularia elongata P gigantia...