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Showing results for tags 'cockroach'.
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Sweet Chinese Jurassic Fossil Cockroach from NJ Fossil Show
Biotalker posted a topic in General Fossil Discussion
I just posted on some fake fossil insects out of China at a show. It seems only fair that I post on an inexpensive nice find I got at the show from the famous Daohugou site in inner Mongolia in China. They are sold as both positive and negative. Check it out. Just remarkable preservation. -
The age of the Daohugou strata has been notoriously difficult to determine, and a number of studies have produced conflicting results. Gao and Shubin reported an Argon-argon dating age of 164+- 4 million years ago (Middle to Late Jurassic, Bathonian to Oxfordian), this oppinion is now widely accepted. Part and counterpart of the same fossil. There are additional unidentified conchostraca (clam shrimps, arthropods) on the slabs. Drawing of the holotype by Liang et al. 2012 Taxonomy according Fossilworks.org. Differential diagnosis (genus) according to Liang et al, 2012: "The new genus can be distinguished from other representatives of the family by the richly branched Sc. The new genus additionally differs from Liadoblattina Handlirsch, 1906 (Vršanský and Ansorge 2007) from Early Jurassic of Germany and England in having a larger body and reticulations present in the CuA-CuP area. Graciliblatta is also different from Raphidiomima and Cameloblatta in the elongated pronotum (the length-to-width ratio of the pronotum of the new genus is 1.5, those of Raphidiomima and Cameloblatta 1.2), and distinctive divided eyes located basally, which are undivided in the other genera, which originate from the Late Jurassic of Kazakhstan. The head and pronotum of Graciliblatta are extremely long and narrower than in Fortiblatta (Liang et al. 2009); vein R of the forewing is more arcuate and R1 has secondary branching not found in Fortiblatta, which is from the same locality and age as Graciliblatta. In addition, the body is smaller (length/width of head in the new genus is 2.25 vs. 1.9 in Fortiblatta; the pronotal length/width of the new genus is 1.5 vs. 1.2 in Fortiblatta). Coloration in the tip of wings is absent, but Graciliblatta has two dark stripes on pronotum, unlike Fortiblatta." Description (species) according to Liang et al., 2012: "Head and pronotum elongated. Forewing long and narrow. Sc richly branched, with 7–8 branches; R not reaching the tip of margin, slightly curved and basally with dark coloration. CuA and CuP slightly curved. Anal veins with tertiary branches. Diagonal fold present. Hind wing with simple Sc; R1 and Rs differentiated, and R1 secondarily branched." Prognathous and sharp mandibles of the species suggest it was a carnivore. Identified by oilshale. Reference: LIANG, J. H., HUANG, W. L. & REN, D. (2012) Graciliblatta bella gen. et sp. n. - A rare carnivorous cockroach (Insecta, Blattida, Raphidiomimidae) from the Middle Jurassic. Zootaxa 3449: 62–68. LIANG, J. H., SHIH, C. K. & REN D. (2018). New Jurassic predatory cockroaches (Blattaria: Raphidiomimidae) from Daohugou, China and Karatau, Kazakhstan. Alcheringa 42:101-109.
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Brazil has some of the most incredible fossils in the world, and I feel not enough appreciation is given, especially to the fish of the Crato Formation! I have briefly been obsessed with the fossils from Brazil as I purchased my first and only fish from there, a small Dastilbe! With the import ban these fish are becoming rarer and rarer I would love to see what some of the older people got while the market was still open! I would also be interested in seeing the isolated teeth from the Spinosaurid from Crato!
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Hi all. I was wondering if I could get some sort of specific ID on a possible insect wing that I found in the roof shales of a thin coal that is dated to the Late Pennsylvanian or Kasimovian. Fossil plants and some vertebrate material can be found in the same shale. Stratigraphic information: From a roof shale of a thin coal roughly 30 feet below the Brush Creek Limestone of the Glenshaw Formation in the Conemaugh Group. Discovered in the suburbs outside of Pittsburgh.
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- carboniferous
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Calisto, V. and Piñeiro, G., 2019. A large cockroach from the mesosaur-bearing Konservat-Lagerstätte (Mangrullo Formation), Late Paleozoic of Uruguay. PeerJ, 7, p.e6289. https://www.researchgate.net/publication/330484562_A_large_cockroach_from_the_mesosaur-bearing_Konservat-Lagerstatte_Mangrullo_Formation_Late_Paleozoic_of_Uruguay https://peerj.com/articles/6289/?utm_source=TrendMD&utm_campaign=PeerJ_TrendMD_0&utm_medium=TrendMD Yorus, Paul H.
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- barona arcuata
- carboniferous
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References: DANDAN WEI and REN (2013): Completely preserved cockroaches of the family Mesoblattinidae from the Upper Jurassic-Lower Cretaceous Yixian Formation (Liaoning Province, NE China). Geologica Carpathica 2013, 64, 4, 291-304.
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From the album: Invertebrates
Perlucipecta aurea Wei & Ren, 2013 Cockroach Early Cretaceous Jehol Group Jiufotang Formation Chaoyang Liaoning PRC Length 22mm