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paleoparadive.bsky.social
PARADIVE UW
@paleoparadive.bsky.social
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team @IBE_Warszawa focused on the impact of extinction and climate warming on parasite-host interactions and disease in deep time. https://www.paradivelab.com/ Avatar by Franz Anthony
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paleoparadive.bsky.social
Just in time for #FossilFriday: Fossil constraints on the origin and evolution of #Platyhelminthes are surprisingly concordant with modern molecular #phylogenies: doi.org/10.1590/S198... #flatworms #paleobiology #paleontology #fossils #paleoparasitology #helminths #flatworms
Examples of characteristic traces or structures attributed to representatives of Platyhelminthes which can be preserved in the fossil record. (A) Modern marine polyclad producing a mucociliary trail (drawing based on Collins et al. 2000); (B) Modern planarian producing a mucociliary trail (drawing based on Pantin 1950); (C) Circlet of hooks attributed to monopisthocotylean neodermatans associated with Devonian gnathostome fish (drawing based on Upeniece 2001); (D-F) Igloo-shaped concretions attributed to gymnophallid trematodes in a fossil bivalve (drawing based on Rogers et al. 2018) and a modern bivalve (drawing based on Ituarte et al. 2005); (G, H) eggs attributed to eucestode neodermatans in a Permian coprolite (drawings based on Dentzien-Dias et al. 2013). Scale bars: A = 5.0 mm, D = 0.5 mm, G = 1.0 mm, H = 50 μm. Stratigraphic occurrence of fossil evidence for particular orders of Platyhelminthes. Phylogeny follows Littlewood and Waeschenbach (2015) with the exception of Neodermata which follows Brabec et al. (2023). See Table 1 and text for further details of each find.
November 29, 2024 at 8:47 PM