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Showing results for tags 'lithographic limestone'.
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References: Hermann Polz (2009) Alcmonacaris winkleri g. nov. sp. nov. (Crustacea: Decapoda: Pleocyemata: Caridea) aus den Solnhofener Plattenkalken von Eichstätt. Archaeopteryx 26: 1–9.
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References: Alessandro Garassino & Günter Schweigert (2006) The Upper Jurassic Solnhofen decapod crustacean fauna: review of the types from old descriptions. Part I. Infraorders Astacidea, Thalassinidea, and Palinura". Memorie della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano 34. Schlotheim E.F. von (1822) Nachträge zur Petrefactenkunde, 1. Gotha: Becker
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- lithographic limestone
- palaeastacus
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From the album: Vertebrates
'Furo' angustus (MÜNSTER, 1842) Late Jurassic Tithonian Zandt Bavaria Germany Length: 12cm P. Lambers (1998): THE GENUS FURO (PISCES HALECOMORPHI) FROM THE UPPER JURASSIC PLATTENKALKE OF GERMANY. ORYCTOS, Vol. 1 :23-35 -
From the album: Vertebrates
Leptolepides haertesi ARRATIA, 1997 Late Jurassic Tithonian Zandt Germany Length: 9cm-
- jurassic
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Sea urchins are rare members of the Solnhofen biota.
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Field collection
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The horseshoe crab Mesolimulus walchi is reasonably common within the Solnhofen limestones. Ventral preservation. Lit.: Stunning Discovery: World’s Longest Fossilized ‘Death Track’
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- jurassic
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The Caturidae are represented in the Solnhofen Formation by at least four species: Caturus furcatus Agassiz 1834, Caturus giganteus Wagner, 1851, Caturus pachyurus Agassiz, 1833 (all from Solnhofen) and Caturus bellicianus Thiollière 1852 from Solnhofen, Germany and Cerin, France. C. giganteus is now transferred to the new genus Strobilobodus; the last two species were transferred to the revived sister genus Amblysemius (now Amblysemius pachyurus and Amblysemius bellicianus). C. furcatus was clearly a predator as evidenced by its mouth full of sharp teeth. It was a notable fast swimmer possessing an elongated, somewhat thickset body with slender head. Together with its only sister genus Amblysemius, Caturus was a member of the extinct Halecomorpha family Caturidae. It appears that the halecomorph Liodesmus, known from Solnhofen only, is related to the Caturids, rather than the Amiiforms, as has been usually surmised. Caturus possessed ganoid scales that are more cycloid in nature and as a member of the holosteans a bony skeleton with a partially ossified vertebral column. The head is short an equipped with powerfully toothed jaws. The dorsal fin is pointed and attached just posterior to the body's midpoint. anal fin is attached somewhat more to the rear. The caudal fin is large and deeply divided. Less than 5% of all adult Caturus show peculiar anal fins with two small outgrows of unknown function (such as seen here). With a hefty 52cm or 20" in length, this is clearly an adult specimen.
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Taxonomy from Fossilworks.com. Diagnosis from Poyato-Ariza & Wenz 2004, p. 370: "Turbomesodon presenting the following unique combination of primitive and derived characters: dorsal apex at the point of insertion of the dorsal fin; ventral apex absent; coronoid process high, with straight dorsal border; about 32 vertebrae (epichordal elements excluding those of the caudal endoskeleton); first one or two dorsal axonosts not supporting fin rays (one or two free dorsal axonosts present); about 39 dorsal and 30 anal axonosts; caudal fin double emarginated; dorsal and anal fins sigmoid in contour, placed at 60-69 % of standard length; pelvic fins at 45-55 % of standard length; some anterior dorsal ridge scales eventually separated from each other; 17-20 ventral keel scales; 6 postcloacal ventral keel scales; up to 5 spines on contour scales; spines on each ventral keel scale in contact with each other; supracloacal scale ventrally in contact with cloacal scales only" References: Poyato-Ariza, F. & Wenz, S.(2004): The new pycnodontid fish genus Turbomesodon, and a revision of Macromesodon based on new material from the Lower Cretaceous of Las Hoyas, Cuenca, Spain. Mesozoic Fishes 3 - Systematics, Paleoenvironments and Biodiversity, G. Arratia & A. Tintori (eds.): pp. 341-378,15 figs., 1 tab., 3 apps. Ebert M, Kölbl-Ebert M, Lane JA (2015) Fauna and Predator-Prey Relationships of Ettling, an Actinopterygian Fish-Dominated Konservat-Lagerstätte from the Late Jurassic of Southern Germany. PLoS ONE 10(1): e0116140. doi:10.1371/ journal.pone.0116140
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Taxonomy from Maxwell et al. 2020. Identified by oilshale. References: Agassiz L. (1843) Recherches Sur Les Poissons Fossiles. Tome I (livr. 18). Imprimerie de Petitpierre, Neuchatel xxxii-188. Maxwell, E.E., Lambers, P.H., López-Arbarello, A., and Schweigert G. (2020) Re-evaluation of pachycormid fishes from the Late Jurassic of Southwestern Germany. Acta Palaeontologica Polonica 65 (3): 429–453.
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