Leptochilodiscus Rasetti, 1966 [= Kerberodiscus Bassett et al., 1976] [2] is a genus of Lower Cambrian Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi (1943), [3] Order Agnostida (Salter, 1864). [4] It lived during the Botomian stage = late Lower Cambrian Stage 4 (upper of two stages subdividing the un-named Series 2); the upper Botomian Stage boundary corresponds to base of both the Middle Cambrian Wuliuan stage and Miaolingian Series.
Leptochilodiscus punctulatus Rasetti, 1966, from the Late Lower Cambrian of New York State. Holotype: U.S.N.M. 146009. Paratypes: U.S.N.M. 146010 and 146011.
Distributionedit
Leptochilodiscus punctulatus Rasetti (1966, p. 26, Pl. 1, fig. 5 ; pl. 11, figures 1 - 7), the title erroneously printed Leptochilodiscus punctulatis [sic.], is part of a trilobite faunule that was collected from limestone beds which form several outcrops in a hillside on Griswold farm, about 1 mile southeast of North Chatham, Columbia County, New York State, USA; the faunule is referred to as the Acimetopus bilobatus faunule after one of the most common and characteristic trilobites. The Acimetopus bilobatus faunule is notable for the number and variety of trilobites of the family Eodiscidae.
Leptochilodiscus succinctus (Bassett et al., 1976, p. 632, pl. 2, figs. 11 a - c) was collected from the upper part of the Hells Mouth Formation, 16.5 m below the base of the overlying Trwyn y Fulfran Formation at Trwyn Carreg-y-tir (grid referenceSH 2876 2402), Llŷn Peninsula, North West Wales . The fauna is of late lower Cambrian age and falls within the upper part of the protolenid-strenuellid Zone of the Comley Series of British nomenclature. [5]L. succinctus was originally described by Bassett et al., (op. cit.) as Kerberodiscus succinctus gen. et sp. nov.
Referencesedit
^ RASETTI, F. (1966). "New Lower Cambrian trilobite faunule from the Taconic sequence of New York". Smithsonian Miscellaneous Collections. 148 (9): 1–52.
^ KOBAYASHI T. 1943. Brief notes on the Eodiscids 1, their classification with a description of a new species and a new variety, Proceedings of the Imperial Academy, Tokyo, Volume 19, pp. 37-42.
^ SALTER, J. W. 1864: On some new fossils from the Lingula - flags of Wales. Quarterly Journal of the Geological Society of London, 20, 233 – 241.
^COWIE, J. W., RUSHTON , A. W. A. & STUBBLEFIELD, C. J. 1972. A correlation of Cambrian rocks in the British Isles. Geological Society of London, Special Report no. 2, 40 pp,
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leptochilodiscus, rasetti, 1966, kerberodiscus, bassett, 1976, genus, lower, cambrian, eodiscinid, trilobite, belonging, family, weymouthiidae, kobayashi, 1943, order, agnostida, salter, 1864, lived, during, botomian, stage, late, lower, cambrian, stage, upper. Leptochilodiscus Rasetti 1966 Kerberodiscus Bassett et al 1976 2 is a genus of Lower Cambrian Eodiscinid trilobite belonging to the family Weymouthiidae Kobayashi 1943 3 Order Agnostida Salter 1864 4 It lived during the Botomian stage late Lower Cambrian Stage 4 upper of two stages subdividing the un named Series 2 the upper Botomian Stage boundary corresponds to base of both the Middle Cambrian Wuliuan stage and Miaolingian Series LeptochilodiscusTemporal range Botomian Olenellus zone PreꞒ Ꞓ O S D C P T J K Pg N Scientific classification Kingdom Animalia Phylum Arthropoda Class Trilobita Order Agnostida Suborder Eodiscina Superfamily Eodiscoidea Family Weymouthiidae Genus LeptochilodiscusRasetti 1966 1 Type species L punctulatus Rasetti 1966 species L punctulatus Rasetti 1966 Leptochilodiscus succinctus Bassett et al 1967 Synonyms Kerberodiscus Bassett et al 1976Type species editLeptochilodiscus punctulatus Rasetti 1966 from the Late Lower Cambrian of New York State Holotype U S N M 146009 Paratypes U S N M 146010 and 146011 Distribution editLeptochilodiscus punctulatus Rasetti 1966 p 26 Pl 1 fig 5 pl 11 figures 1 7 the title erroneously printed Leptochilodiscus punctulatis sic is part of a trilobite faunule that was collected from limestone beds which form several outcrops in a hillside on Griswold farm about 1 mile southeast of North Chatham Columbia County New York State USA the faunule is referred to as the Acimetopus bilobatus faunule after one of the most common and characteristic trilobites The Acimetopus bilobatus faunule is notable for the number and variety of trilobites of the family Eodiscidae Leptochilodiscus succinctus Bassett et al 1976 p 632 pl 2 figs 11 a c was collected from the upper part of the Hells Mouth Formation 16 5 m below the base of the overlying Trwyn y Fulfran Formation at Trwyn Carreg y tir grid reference SH 2876 2402 Llŷn Peninsula North West Wales The fauna is of late lower Cambrian age and falls within the upper part of the protolenid strenuellid Zone of the Comley Series of British nomenclature 5 L succinctus was originally described by Bassett et al op cit as Kerberodiscus succinctus gen et sp nov References edit RASETTI F 1966 New Lower Cambrian trilobite faunule from the Taconic sequence of New York Smithsonian Miscellaneous Collections 148 9 1 52 BASSETT M G OWENS R M and RUSHTON A W A 1976 Lower Cambrian fossils from the Hell s Mouth Grits St Tudwal s Peninsula North Wales Journal of the Geological Society 132 6 623 644 http pubs geoscienceworld org jgs article pdf 132 6 623 4885552 gsjgs 132 6 0623 pdf KOBAYASHI T 1943 Brief notes on the Eodiscids 1 their classification with a description of a new species and a new variety Proceedings of the Imperial Academy Tokyo Volume 19 pp 37 42 SALTER J W 1864 On some new fossils from the Lingula flags of Wales Quarterly Journal of the Geological Society of London 20 233 241 COWIE J W RUSHTON A W A amp STUBBLEFIELD C J 1972 A correlation of Cambrian rocks in the British Isles Geological Society of London Special Report no 2 40 pp nbsp This Agnostida related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Leptochilodiscus amp oldid 1052463763, wikipedia, wiki, book, books, library,
