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Found 5 results

  1. Cockroach

    Length is without the legs
  2. Perlucipecta aurea Wei & Ren, 2013

    From the album Invertebrates

    Perlucipecta aurea Wei & Ren, 2013 Cockroach Early Cretaceous Jehol Group Jiufotang Formation Chaoyang Liaoning PRC Length 22mm
  3. Protopsephurus liui Lu, 1994

    The order of Acipenseriformes (Sturgeon-like fishes) both includes sturgeons (Acipenseridae) and paddlefish (Polyodontidae). At least three Sturgeon-like fishes (Acipenseriformes) can be found in the Jiufotang Formation (Jehol Group) and in the Yixian Formation in western Liaoning and northern Hebei Province China: Peipiaosteus pani Liu and Zhou, 1965, Protopsephurus liui Lu, 1994 and Yanosteus longidorsalis Jin, Tian, Yang & Deng, 1995. The Jiufotang Formation - where Peipiaosteus comes from - is dated to about 120.3+/-0.7 million years ago, which was during the Aptian age of the Cretaceous; the Yixian Formation - where this Protopsephurus liui and Y. longidorsalis can be found - is dated slightly older, around 125-121 million years ago (Barremian-early Aptian). Protopsephurus liui Lu 1994 is both the oldest and the most primitive paddlefish (Polyodontidae) known. Paddlefishes remain one of the strongest indicators of historical biogeographic connection between East Asia and North America. Fossil and living members of this family date from the Early Cretaceous and Recent in China, and from the Late Cretaceous, Early Paleocene, Early Eocene and Recent in North America. The total length of Protopsephurus normally is in the range of 20 to 30cm, but can exceed 1m. Lit.: Lu, L. (1994): A new paddlefish from the Upper Jurassic of Northeast China. Vertebrata PalAsiatica, 1994, Vol. 32, Teil 2, pp134-142 Liu, H., Zhou J. (1965): A new Sturgeon from the Upper Jurassic of Liaoning, North China. Vertebrata PalAsiatica Vol. 9, No. 3, 1965, p. 237 ff. Zhou, Z.(1992): Review on Peipiaosteus based on new materials of P. pani. Vertebrata PalAsiatica Vol 30, No. 2, pp 85-101.
  4. Lower Cretaceous Insects

    Here are 5 insects from the lower cretaceous; specimens 1 and 2 (pics 2a, 2b) from the Yixian Formation, Huangbangi Valley, Beipiao (~ Barremian) specimens 3, 4 and 5 from Nova Olinda, Crato Formation, Brasilia (upper Aptian / lower Albian) Length: specimen 1 = 10 mm (body length) specimen 2 = 8 mm (head to the end of the longest wing) (Diptera?) specimen 3 = 10 mm (body length, head - tail) specimen 4 = 21 mm (total length) (Orthoptera) specimen 5 = 18 mm (total length) (Beetle: Dystiscidae?) Any suggestions are appreciated! (specimen 4 is a grasshopper, specimen 5 a beetle; but is it possible to say more about them?) An additional question: The small circular fossils which look like small bivalves on the Yixian specimens are conchostracans (Nestoria pissovi), but I wonder about the brownish striations on the Nova Olinda material. They are suggestive of trace fossils, but otherwise they seem to show some organic matter similar to the body fossils.They are extremely common on the plates with Crato fossils. Does someone know what they are? Thank you very much! araucaria1959
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