Search the Community
Showing results for tags 'emsian'.
-
Roofing slate mining in Bundenbach (Eschenbach-Bocksberg mine) was discontinued in 1999. Taxonomy according to Fossilworks. Diagnosis in Südkamp, 2011: "The large, bowl-shaped cup is composed of three low infrabasals and two uninterrupted circlets of large, five-sided basals and radials. The angustary radial facets are horseshoe-shaped. The basals and radials have a striated surface sculpture (hexagonal concentric lines). The uniserial arms branch isotomously on primibrach three normally and heterotomously higher in the crown. The secundi- and tertibrachs have thorn-shaped plates aborally. The circular xenomorphic stem lacks a radix." Identified by oilshale. References: Follmann, O. (1887) Unterdevonische Crinoiden. Verhandlungen des naturhistorischen Vereins der preussischen Rheinlande, Westfalens und des Regierungs-Bezirks Osnabrück 44 (fünfte Folge: 4. Jahrgang): 113–138. Südkamp, Wouter. (2011) Redescription of the cyathocrinid cladid Codiacrinus schultzei Follmann, 1887 from the Lower Devonian Hunsrück Slate at Bundenbach (Germany). Paläontologische Zeitschrift. 85. 241-255. 10.1007/s12542-010-0089-2. Ausich, W.I., Bartels, C. & Kammer, T.W. (2013) Tube foot preservation in the Devonian crinoid Codiacrinus from the Lower Devonian Hunsrück Slate, Germany. Lethaia, Vol. 46, pp. 416–420.
- 4 comments
-
- 4
-
-
-
- bundenbach
- codiacrinus
- (and 6 more)
-
From the album: Trilobites
6cm. long Upper Emsian Early Devonian From the Anti-Atlas in Morocco -
I just acquired this trilobite over an internet auction house. The seller could give me absolutely no information about it, but I'm pretty sure that this is a Hollardops mesocristata from the late Emsian, Middle Devon. I would just like to ask the experts here on this subject if I am correct in my assumption and if they perhaps might be able to suggest its provenance. It's 6cm. long.
- 3 replies
-
- 1
-
-
- emsian
- hollardops
- (and 1 more)
-
Hi everybody! Today i want to kindly ask you help for the correct ID of this trilobite. My choice is Morocops ovatus but obviously i prefer to listen the ideas of experts (@piranha @Kane @Tidgy's Dad and more). I'm thankful to everyone who want to participate at the topic Here are the info: Origin: Jbel Zguilma (Foum Zguid), near Alnif, Morocco Age: Emsian, Devonian Lenght: 5.5 cm / 2.16 inches The trilobite is not in my hands, the photos are from the seller. Thanks and have a wonderful weekend!
-
Alternative names: Mitrocystites styloideus or Dalejocystis styloideus. Taxonomy from Mindat.org. Description (Südkamp 2017, p. 98): "The theca is roughly semicircular. It consists of two large thin plates on the oral surface, which nearly completely overlap the dorsal surface. The margin in the neighbourhood of the aulacophore is sometimes arcuate and bears medially the slender insertion of the aulacophore. Next to it, on the oral surface, short transverse riblets can be seen, which are directed to the aulacophore. The lateral margins of the dorsal surface bear a row of knots. The elongate aulacophore bears spines, which taper to the end. The anterior large ossicle (stylocone) has the appearance of a buttercup. At the other edge of the body a strong spine is attached, but is missing in most species." Name derivation: Stylos = pillar. Identified by oilshale. References: Dehm, R. 1934. Untersuchungen an Cystoideen des rheinischen Unterdevons. Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Abteilung der Bayerischen Akademie der Wissenschaften zu München für 1934: 19-43. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
-
Taxonomy according to Fossilworks.org. Characteristics of the genus according to Südkamp 2017, p. 110: “The cup is cone-shaped. The arms are very long, unbranched and without pinnules. They consist of elongate elements. The anal sac is arm-like. The round stem consists of low elements proximally.” T. elongatus is characterized by arms that can be more than 20 times the height of the cup. Identified by oilshale using Südkamp 2017. References: Follmann, O. (1887) Unterdevonische Crinoiden. Verhandlungen des Vereins Rheinland, xliv 1887: pp. 113-138. Südkamp, W. (2017): Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
- 1 comment
-
- 1
-
-
- bocksberg
- bundenbach
- (and 6 more)
-
From the album: Invertebrates
Ivoites sp. Early Devonian Emsian (early) Bundenbach Rhineland-Palatinate Germany -
Together with the brittle star Furcaster decheni STUERTZ, 1886. Palaeoisopus was one of the largest predators of this fauna with a length of up to 25 cm and a maximum diameter of about 40 cm with spread legs. This is a (slightly disarticulated) juvenile specimen. Line drawing from Lehman 1959, p. 102: References: Walter Maximilian Lehmann (1959) Neue Entdeckungen an Palaeoisopus. Paläontologische Zeitschrift 33: 1/2, 96-108. doi:10.1007/BF02988981 Jan Bergström, Wilhelm Stürmer, Gerhard Winter (1980) Palaeoisopus, Palaeopantopus and Palaeothea, pycnogonid arthropods from the Lower Devonian Hunsrück Slate, West Germany. Paläontologische Zeitschrift 54: 11, 7-54. doi:10.1007/BF02985882
- 3 comments
-
- 3
-
-
- bundenbach
- devonian
- (and 4 more)
-
References: K. De Baets, C. Klug, D. Korn, C. Bartels, and M. Poschmann (2013). Emsian Ammonoidea and the age of the Hunsrück Slate (Rhenish Mountains, Western Germany). Palaeontographica Abteilung A 299:1-113.
- 1 comment
-
- 3
-
-
-
- bundenbach
- devonian
- (and 4 more)
-
From the album: Invertebrates
Baliactis sp. Lower Devonian Emsian Bundenbach Hunsrück Germany -
From the album: Invertebrates
Taxocrinus stuertzii FOLLMANN, 1887 Early Devonian Emsian (early) Eschenbach Bundenbach Hunsrück Rhineland-Palatinate Germany -
From the album: Invertebrates
Bundenbachia beneckei STUERTZ, 1886 Early Devonian Emsian (early) Bundenbach Eschenbach Quarry Rhineland-Palatinate Germany -
From the album: Invertebrates
Chotecops ferdinandi (KAYSER, 1880) Early Devonian Emsian (early) Bundenbach Grube Eschenbach Rhineland - Palatinate Germany Length 5cm-
- 1
-
-
- bundenbach
- chotecops
- (and 4 more)
-
From the album: Invertebrates
Mitrocystites styloideus DEHM 1934 Early Devonian Emsian (early) Bundenbach Hunsrück Rhineland-Palatinate Germany-
- 1
-
-
- anatifopsis
- bundenbach
- (and 4 more)
-
Taxonomy from Fossilworks.org. Description (Südkamp 2017, p. 100): "The flattened theca is angular and trapezoidal in outline. The large angular anal field is positioned in the centre of one side of the theca (the anal), allowing it to be distinguished from the other (the abanal). The delicate plates are organized in large arcs across the abanal side. The peripheral rim is flat. The stem is very long. The body-oriented part consists of alternating simple and large collar ring-like elements. The more elongate distal elements are barrel-shaped. The long and slender uniserial brachiales are in the exothecal projections for food-gathering. Name meaning: Regula = Leiste, pleuro = to the side, lateral. Identified by oilshale. References: Dehm, R. (1934) Untersuchungen an Cystoideen des rheinischen Unterdevons. Sitzungsberichte der mathematisch-naturwissenschaftlichen Abteilung der Bayerischen Akademie der Wissenschaften zu München. 1934 Heft 1, p 19-43, 2 Tab. Nardin, E. and Bohatý, J. (2013) A new pleurocystitid blastozoan from the Middle Devonian of the Eifel (Germany) and its phylogenetic importance. Acta Palaeontologica Polonica 58 (3): 533–544. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
- 4 comments
-
- 1
-
-
- bundenbach
- devonian
- (and 4 more)
-
From the album: Invertebrates
Ivoites sp. Early Devonian Emsian (early) Kaub Formation Bundenbach Germany -
Lit.: Michael Schubert (1996). Die dysaerobe Biofazies der Wissenbacher Schiefer (Rheinisches Schiefergebirge, Harz, Devon). PhD Thesis, ISS N 0534-0403
-
From the album: Invertebrates
Zaphrentis sp. Early Devonian Emsian Bundenbach Rhineland-Palatinate Germany Diameter 4cm -
Found in what I believe to be Emsian marine deposits here in Maine. The most common fossils found there are horn corals, but I've collected a number of other things there. Phosphate nodules are fairly common there as well.
-
Description from Südkamp 2017, p. 111: " Cup very tall and narrow cylindroconical. The long, slender, non-pinnulated arms divide three to four times isotomously abouve the fourth to fith primibrach. The anal sack is narrow and elongate and composed of several vertical rows of plicate plates. The appearance of the stem is reminiscent of a string of pearls. Only the proximal part consists of short, pentagular elements." Identified by oilshale. References: Schmidt, W. E. 1934. Die Crinoideen des Rheinischen Devons. Teil I: Die Crinoideen des Hunsrückschiefer. Abhandlungen Preussischen Geologischen Landesanstalt, N. F., 163, 1-149. Südkamp, W. (2017): Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
-
- 1
-
-
- bactrocrinites
- bocksberg
- (and 6 more)
-
Taxonomy from Fossilworks.org. Description from Südkamp 2017, p. 132: " Medusaster is a small ophiuroid with generally 11 to 15 arms. They are slender, taper in the distal part and end in blunt extremities. The disc has the same size as the mouth frame, which included the robust mouth-angle plates together with the large triangular second ambulacrals. The ambulacrals are fused into half vertebrae which are mostly aligned with their opposites. The laterals are sickle-shaped and bear some slender spines." Identified by oilshale. References: Stürtz, B. (1890) Neuer Beitrag zur Kenntniss paläozoischer Seesterne. Palaeontographica 36: 203-247. Südkamp, W. (2017) Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
-
- 2
-
-
- bundenbach
- devonian
- (and 4 more)
-
From the album: Invertebrates
Medusaster rhenanus Stuertz, 1890 Lower Devonian Lower Emsian Bundenbach Germany -
Orthoceras sp., completely overgrown by Favosites sp., a tabulate coral.
-
- 2
-
-
- bundenbach
- devonian
- (and 4 more)
-
Orthoceras, completely overgrown by Favosites sp
oilshale posted a gallery image in Member Collections
From the album: Invertebrates
Orthoceras sp., completely overgrown by Favosites sp. Early Devonian Emsian Bundenbach Germany Length 30cm-
- 1
-
-
- bundenbach
- devonian
- (and 3 more)
-
Could be either B. scutatus Lehmann, 1957, B. tuberatus Lehmann, 1957 or B. devonicus, Spencer, 1927. Taxonomy from Fossilworks.org. Description by Südkamp 2017, p.125: "Baliactis has on the lowersurface the large oval madreporite at the edge of the disc. The mouth-angle plates are long and rather narrow. The evenly tapering arms consist on the dorsal surface of three series of plates (radials, adradials and marginals). At the base of the arms there is a pair of larger adradials that is continued by further adradials in a long series up to the tips of the arms. Besides them run a series of elongate marginals. The robust plates on the dorsal surface carry coarse pustules (name). The ambulacrals on the oral surface are in direct opposition and T-shaped. The adambulacrals are rather narrow, crescent-shaped, and bear small spines." Name meaning: Balios = dappled. References: W.M. Lehmann (1957) Die Asterozoen in den Dachschiefern des rheinischen Unterdevons. Abhandlungen des Hessischen Landesamtes für Bodenforschung 21:1-160. Südkamp, W. (2017): Life in the Devonian. Identification book Hunsrück Slate fossils. Verlag Dr. Friedrich Pfeil. München 2017. ISBN978-3-89937-221-2.
