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#annectens

Stefan F. Wirthstefanfwirth@biologists.social
2025-10-29

In my new YouTube #video, I tell the #hypothetical story of a #Histiostomatidae #mite that lived its #lifehistory in the #dung heap of the #dinosaur #Edmontosaurus #annectens during the Late #Cretaceous. It developed #fungivorously within the dung and, when conditions deteriorated, was #transported by #flies to a new habitat (phoresis). All images and footage created with #AI assistance, except photos of free-living mites.
© #StefanFWirth 2025

Video
youtu.be/gzv-TZmU5G4?si=zrTLfr

Pics
© S.F. Wirth

Dinosaur dung, created AI assisted, © Stefan F. Wirth Berlin, October 2025Fly with phoretic mites lands on the dinosaur dung heap, created AI assisted, © Stefan F. Wirth Berlin, October 2025Phoretic mite Histiostoma sp. develops as fungivorous micro fauna element in dinosaur dung, original microscopic photo (of a recent species as model for my hypothesis about prehistoric contexts), © Stefan F. Wirth Berlin, October 2025Phoresy: A fly, carrying phoretic mite passengers on its flight to a fresh dinosaur dung heap, created AI assisted, © Stefan F. Wirth Berlin, October 2025
Stefan F. Wirthstefanfwirth@biologists.social
2025-10-24

#Edmontosaurus #annectens was a #duckbilled #dinosaur (#Hadrosauridae) and ate mostly #coniferous #diet. Hadrosaurids preferred #quadruped walks. P. C. Sereno et al. (2025) found that "#mummy" #fossils of the #species formed due to the carcass being covered by a soft #sedimentlayer impressed with tissue details before decomposition. Found details: a fleshy head- and trunk-ridge, a hip/tail spikerow and #hoof-like feet.
©#StefanFWirth 2025

Ref
doi.org/10.1126/science.adw3536

Pics
©S.F.Wirth,AI assisted

My own illustration of how about dinosaur Edmontosaurus annectens might have looked like according to newest findings based on analyses of " mummy" like fossils with partly very well preserved soft tissue impressions. I understand my illustrations as more or less rough drafts and of course not as extraordinary precise detail work, © Stefan F. Wirth, AI assisted and hand edited, Berlin October 2025Feeding on coniferous plants: My own illustration of how about dinosaur Edmontosaurus annectens might have looked like according to newest findings based on analyses of " mummy" like fossils with partly very well preserved soft tissue impressions. I understand my illustrations as more or less rough drafts and of course not as extraordinary precise detail work, © Stefan F. Wirth, AI assisted and hand edited, Berlin October 2025With a fleshy head ridge, feeding on coniferous plants: My own illustration of how about dinosaur Edmontosaurus annectens might have looked like according to newest findings based on analyses of " mummy" like fossils with partly very well preserved soft tissue impressions. I understand my illustrations as more or less rough drafts and of course not as extraordinary precise detail work, © Stefan F. Wirth, AI assisted and hand edited, Berlin October 2025

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