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Showing results for tags 'chengjiang'.
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The longest one is roughly 2cm long. I’ve counted 12 on the rock, which itself is about 5cm long. All I know is that it’s from the Maotianshan shales in China. I was told it’s a Yunnanozoon, but I believe this is incorrect as the person I got it from is often wrong with their identifications.
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- cambrian
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A rangeomorph holdfast trace fossil from the Ediacara formation, Rawnsley quartzite of the Flinders Range, South Australia. This specimen is Medusina mawsoni, so called because it was until recently thought to be a jellyfish, but is now believed to be the attachment point of a fractal rangeomorph as Charniodiscus is the point of anchorage for Charnia sp. This one may have been the holdfast point for some species of Rangea. The diameter of the outer circle is 1.5 cm and the fossil is estimated to be 555 million years old.
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- achlysopsis
- acorn worm
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I'm looking at an unknown trilobite from the Chengjang site in China and it has this weird looking thing on the thorax. Is it a fossil, and if so what is it?
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I'm looking at purchising a fossil that is labeled anomalocarid. It's not super well preserved, but looks like part of an anomalcarid arm. Is it an anomalocarid or something else.
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525-Million-Year-Old Fossil Solves Debate Over Brain Evolution
Oxytropidoceras posted a topic in Fossil News
525-Million-Year-Old Fossil Solves Debate Over Brain Evolution University of Arizona, November 25, 2022 https://scitechdaily.com/science-textbooks-wrong-525-million-year-old-fossil-defies-common-explanation-for-brain-evolution/ https://www.sciencedaily.com/releases/2022/11/221125132137.htm https://www.technologynetworks.com/neuroscience/news/525-million-year-old-fossil-solves-debate-over-brain-evolution-367879 The paywalled paper is: Nicholas J. Strausfeld, Xianguang Hou, Marcel E. Sayre, and Frank Hirth, 2022, The lower Cambrian lobopodian Cardiodictyon resolves the origin of euarthropod brains. Science, 378 (6622), pp. 905-909. 905 DOI: 10.1126/science.abn6264 https://www.science.org/doi/10.1126/science.abn6264 Yours, Paul H.-
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- cambrian
- cardiodictyon
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Alternative combination: Alalcomenaeus illecebrosus. Taxonomy from Liu Yu et al. 2007. Diagnosis for Leanchoilia illecebrosa Hou 1987 from Liu Yu et al. 2007, p. 264: "A species of Leanchoilia with rami of ʻgreat appendageʼ with poorly visible distinction between shaft and filament, and with a single hook on the outermost ramus. Body comparatively slim. Rostrum pointed anteriorly, not extended into a snout. Tail piece dagger-shaped." Line drawing from Liu Yu et al. p. 265: References: Hou Xian-Guang (1987) Two new arthropods from Lower Cambrian, Chengjiang, eastern Yunnan. Acta Palaeontologica Sinica 26, 236–256. Liu Yu, Hou Xian-Guang & Bergström, J. (2007) Chengjiang arthropod Leanchoilia illecebrosa (Hou, 1987) reconsidered. GFF, Vol. 129 (Pt. 3, September), pp. 263–272. Stockholm. ISSN 1103-5897. Haug, J.T., Briggs, D.E. & Haug, C. (2012) Morphology and function in the Cambrian Burgess Shale megacheiran arthropod Leanchoilia superlata and the application of a descriptive matrix. BMC Evol Biol 12, 162. https://doi.org/10.1186/1471-2148-12-162
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- alalcomenaeus
- cambrian
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From the album: Chengjiang/Guanshan Biota Collection
Paleolenus lanlenoisi, I think I may have traded this one away...- 1 comment
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- chengjiang
- china
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Misszhouia longicaudata B side
cameronsfossilcollection posted a gallery image in Member Collections
From the album: Chengjiang/Guanshan Biota Collection
B side to the Misszhouia piece. -
From the album: Chengjiang/Guanshan Biota Collection
Misszhouia longicaudata with excellent soft tissue preservation -
From the album: Chengjiang/Guanshan Biota Collection
Redlichia sp. triangle of molt pieces! -
Yuknessia(?) with a mystery dark splotch.
cameronsfossilcollection posted a gallery image in Member Collections
From the album: Chengjiang/Guanshan Biota Collection
Cool algae! -
From the album: Chengjiang/Guanshan Biota Collection
Isoxys sp squashed by diagenetic processes! -
Parapeytoia yunnanensis gnathobase
cameronsfossilcollection posted a gallery image in Member Collections
From the album: Chengjiang/Guanshan Biota Collection
Parapeytoia yunnanensis gnathobase. -
From the album: Chengjiang/Guanshan Biota Collection
Possibly Chuandianella ovata? Missing its carapace -
From the album: Chengjiang/Guanshan Biota Collection
Some kind of archeopriapulid worm with its guts preserved. Tasty! -
Yunnanocephalus yunnanensis roller
cameronsfossilcollection posted a gallery image in Member Collections
From the album: Chengjiang/Guanshan Biota Collection
Enrolled Yunnanocephalus yunannensis -
From the album: Chengjiang/Guanshan Biota Collection
Cool Chancellorid from the Chengjiang. Possibly Allonia -
From the album: Chengjiang/Guanshan Biota Collection
Malungia laevigata from the Guanshan. -
From the album: Chengjiang/Guanshan Biota Collection
Possibly the uncommon arthropod Sinoburius from the Chengjiang biota. -
From the album: Chengjiang/Guanshan Biota Collection
Close up of the spiny sclerites. -
From the album: Chengjiang/Guanshan Biota Collection
Naraoia spinosa with legs and all. Gorgeous! -
From the album: Chengjiang/Guanshan Biota Collection
Cricocosmia-
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- chengjiang
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From the album: Chengjiang/Guanshan Biota Collection
Vetulicolia cuneata partial! Look at that beak! -
From the album: Chengjiang/Guanshan Biota Collection
Excellent ventral Hongshiyanaspis-
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From the album: Chengjiang/Guanshan Biota Collection
I. auritus with some Radiodont chompy bits.
