Number 67 • September 2022
ISSN online: 2637-6032
ELLIPSOCEPHALID TRILOBITESTRILOBITES FROM CAMBRIAN SERIES 2 AND STAGE 4 STAGE 4 FROM CAMBRIAN SERIES 2 AND 2022 ELLIPSOCEPHALID
ISBN printed edition (print on demand): 978-82-15-06576-2
ELLIPSOCEPHALID TRILOBITES FROM CAMBRIAN SERIES 2 AND STAGE 4
Introduction Introduction ..................................................................... ..................................................................... 2 2 Sagittal convexity Sagittal of convexity preglabellar of preglabellar area....................30 area....................30Cambrosaurura Cambrosaurura usitata (Geyer, usitata 1990) (Geyer, ................68 1990)................68 GeologicalGeological setting andsetting stratigraphy and stratigraphy .............................. .............................. 3 3 of genal Shape Shapespine of genal .................................................30 spine .................................................30Cambrosaurura Cambrosaurura robusta Geyer robusta n. sp. Geyer ..................73 n. sp...................73 Lithostratigraphy Lithostratigraphy ........................................................ ........................................................ 3 3 Morphology Morphology of pygidium of.........................................30 pygidium.........................................30Cambrosaurura Cambrosaurura bommeli Geyer bommeli n. sp. Geyer ................77 n. sp.................77 Stratigraphic Stratigraphic discontinuities discontinuities and sequence and sequence Phylogenetic Phylogenetic implications implications ........................................31 ........................................31Cambrosaurura? Cambrosaurura? todraensis todraensis (Geyer, 1990) (Geyer, ........79 1990) ........79 stratigraphic stratigraphic signaturessignatures .............................................. .............................................. 5 5 Systematic Systematic palaeontology palaeontology .............................................31 .............................................31 Genus Ellipsostrenua Genus Ellipsostrenua Kautsky, 1945 Kautsky, .......................82 1945.......................82 Age and correlation Age and correlation ......................................................... ......................................................... 6 6 Materials and Materials methods and.............................................31 methods .............................................31Ellipsostrenua Ellipsostrenua gripi (Kautsky, gripi 1945) (Kautsky, ...................83 1945) ...................83 Scania ............................................................................ Scania ............................................................................ 7 7 Repository Repository ..................................................................31 ..................................................................31Ellipsostrenua Ellipsostrenua linnarssonilinnarssoni (Kiær, 1917) (Kiær, .............87 1917) .............87 Introduction ..................................................................... 2 Sagittal convexity of preglabellar area ....................30 Cambrosaurura usitata (Geyer, 1990) Mjøsa areaMjøsa .................................................................... area .................................................................... 8 Class8 Trilobita ClassWalch, Trilobita 1771 Walch, .........................................31 1771 .........................................31Ellipsostrenua Ellipsostrenua sularpensissularpensis (Ahlberg &(Ahlberg ................68 & Geological setting and stratigraphy .............................. 3 Shape of genal spine .................................................30 Cambrosaurura robusta Geyer n. sp. ..................73 Swedish Caledonides Swedish Caledonides .................................................. .................................................. 8 8 Redlichiida Order Order Redlichiida Richter, 1932..................................31 Richter, 1932..................................31Bergström,Bergström, 1978) ...................................................92 1978) ...................................................92 Lithostratigraphy ........................................................ 3 Morphology of pygidium .........................................30 Cambrosaurura bommeli Geyer n. sp. ................77 Central Sweden Central ........................................................... Sweden ........................................................... 9 9 Superfamily Superfamily Ellipsocephaloidea Ellipsocephaloidea Matthew, 1887 Matthew, .......31 1887 .......31Ellipsostrenua Ellipsostrenua brevifrons brevifrons n. sp. ............................96 n. sp. ............................96 Stratigraphic discontinuities and sequence Phylogenetic implications Cambrosaurura? todraensis (Geyer, 1990) ........79 Öland andÖland Gotland and ...................................................10 Gotland ...................................................10 Family Ellipsocephalidae Family Ellipsocephalidae Matthew,........................................31 1887 Matthew, ...................33 1887...................33Ellipsostrenua Ellipsostrenua simrica n. simrica sp. ...............................100 n. sp. ...............................100 stratigraphic signatures .............................................. 5 Systematic palaeontology .............................................31 Genus Ellipsostrenua Kautsky, 1945.......................82 Stage subdivision Stage subdivision of the traditional of the traditional Subfamily Subfamily Antatlasiinae Antatlasiinae Hupé, 1953 Hupé, ..........................34 1953 ..........................34Ellipsostrenua Ellipsostrenua sp. A .............................................103 sp. A .............................................103 Age and correlation ......................................................... 6 GenusMaterials methods .............................................31 Ellipsostrenua gripi ...................83 ‘Lower Cambrian’ ‘Lower Cambrian’ in Baltica ....................................10 in Baltica ....................................10 Berabichia Genusand Berabichia Geyer, 1990 Geyer, ................................34 1990 ................................34Ellipsostrenua Ellipsostrenua troedssoni troedssoni n. (Kautsky, sp. ..........................104 n. 1945) sp. ..........................104 ScaniaLjubomlian ............................................................................ 7 Berabichia Repository Ellipsostrenua linnarssoni 1917) .............87 Ljubomlian .................................................................10 .................................................................10 Berabichia baltica..................................................................31 (Wiman, baltica1903) (Wiman, ..........................35 1903) ..........................35Ellipsostrenua Ellipsostrenua granulosa granulosa (Ahlberg,(Kiær, 1984c) (Ahlberg, ......107 1984c) ......107 MjøsaVergalian–Rausvian area .................................................................... 8Subfamily ClassSubfamily Trilobita Strenuaevinae Walch, 1771 .........................................31 Ellipsostrenua (Ahlberg&& Vergalian–Rausvian ..................................................11 ..................................................11 Strenuaevinae n. subfam. n...........................37 subfam. ..........................37Ellipsostrenua Ellipsostrenua spinosa sularpensis (Ahlberg spinosa&(Ahlberg Swedish Caledonides .................................................. 8 Order Redlichiida Richter, 1932..................................31 Bergström, 1978) ...................................................92 KybartaianKybartaian ..................................................................11 ..................................................................11 Genus Strenuaeva Genus Strenuaeva Richter & Richter Richter,&1940 Richter, ...........38 1940 ...........38Bergström,Bergström, 1978) .................................................109 1978) .................................................109 Central Sweden ........................................................... 9 Strenuaeva Superfamily Ellipsocephaloidea Matthew, 1887 .......31 Genus Dellingia Ellipsostrenua brevifrons n. sp. ............................96 Intercontinental Intercontinental correlation correlation ........................................13 ........................................13 Strenuaeva primaeva (Brøgger, primaeva 1878) (Brøgger, ................40 1878) ................40 gen. ..........................................112 n. gen. ..........................................112 Genusn.Dellingia Öland and Gotland ...................................................10 Family Ellipsocephalidae Matthew, 1887 ...................33 Ellipsostrenua simrica n. sp. ...............................100 Dellingia scanica Dellingia (Ahlberg scanica &(Ahlberg Bergström, & Bergström, Scanian localities Scanian...........................................................15 localities ...........................................................15StrenuaevaStrenuaeva inflata Ahlberg inflata&Ahlberg Bergström, & Bergström, Stage subdivision of the traditional Subfamily Antatlasiinae Hupé, 1953 ..........................34 1978) .....................................................................113 Ellipsostrenua sp. A .............................................103 1978) .....................................................................113 Brantevik ....................................................................16 Brantevik ....................................................................16 1978 .........................................................................41 1978 .........................................................................41 ‘Lower Cambrian’ in Baltica ....................................10 Genus Berabichia Geyer, 1990 ................................34 Ellipsostrenua troedssoni n. sp. ..........................104 Dellingia cf. Dellingia D. scanica cf. D. (Ahlberg scanica&(Ahlberg & Gislövshammar Gislövshammar .........................................................17 .........................................................17 Genus Epichalnipsus Genus Epichalnipsus Geyer, Popp, Geyer, Weidner Popp,&Weidner & Ljubomlian .................................................................10 Förster, Berabichia baltica (Wiman, 1903) ..........................35 Bergström, Ellipsostrenua granulosa (Ahlberg, 1984c) ......107 Bergström, 1978) .................................................117 1978) .................................................117 Kvasa ...........................................................................18 Kvasa ...........................................................................18 2004 Förster, ..............................................................42 2004 ..............................................................42 Vergalian–Rausvian ..................................................11 Subfamily Strenuaevinae n. subfam. . .........................37 Ellipsostrenua spinosa (Ahlberg & Subfamily Subfamily Protoleninae Protoleninae Richter & Richter Richter,&1948 Richter, ....1191948 ....119 Forsemölla..................................................................19 Forsemölla..................................................................19Epichalnipsus Epichalnipsus anartanusanartanus Geyer, Popp, Geyer, Popp, Kybartaian ..................................................................11 Genus&Weidner Strenuaeva Richter & Richter, 1940 ...........38 Genus Cuneoaxiella Bergström, Genus Cuneoaxiella n.1978) gen..................................................109 ...................................119 n. gen. ...................................119 Hardeberga Hardeberga ................................................................20 ................................................................20Weidner Förster, & 2004 Förster, ......................................43 2004 ......................................43 ..........................................112 Intercontinental correlation ........................................13 Strenuaeva primaeva (Brøgger, 1878) ................40 Dellingia n. gen. Genus Cuneoaxiella grandis (Ahlberg grandis&(Ahlberg Bergström, & Bergström, AlmbackenAlmbacken .................................................................21 .................................................................21Epichalnipsus Epichalnipsus bergstroemi bergstroemi n. sp. ..........................45 n. sp. ..........................45Cuneoaxiella Dellingia scanica (Ahlberg & Bergström, Scanian localities ...........................................................15 Strenuaeva inflatarotundatus Ahlberg & (Kiær, Bergström, 1978) .....................................................................120 Ontogenetical Ontogenetical and ecological and ecological aspects .........................21 aspects .........................21Epichalnipsus Epichalnipsus rotundatus (Kiær, 1917) ..............49 1917) ..............491978) .....................................................................120 1978) .....................................................................113 Brantevik ....................................................................16 1978 .........................................................................41 Acknowledgements Acknowledgements .....................................................123 .....................................................123 Ontogeny Ontogeny and autecology and autecology ........................................21 ........................................21Epichalnipsus Epichalnipsus kullingi (Ahlberg kullingi&(Ahlberg Bergström, & Bergström, Dellingia cf. D. scanica (Ahlberg & Gislövshammar .........................................................17 1978) Genus Epichalnipsus Geyer, Popp, Weidner & ReferencesReferences ....................................................................123 ....................................................................123 Epichalnipsus..........................................................23 Epichalnipsus..........................................................23 .......................................................................53 1978) .......................................................................53 Bergström, 1978) .................................................117 Kvasa ...........................................................................18 Förster, 2004 ..............................................................42 Appendix Appendix ......................................................................130 ......................................................................130 Ellipsostrenua Ellipsostrenua .........................................................23 .........................................................23 Subfamily Subfamily Ellipsocephalinae Ellipsocephalinae Matthew, 1887 Matthew, .............54 1887 .............54 Subfamily Protoleninae Richter & Richter, 1948 ....119 Forsemölla..................................................................19 Epichalnipsus anartanus Geyer, Popp, Geyer, Dellingia ..................................................................24 Dellingia..................................................................24 Genus Kingaspidoides Genus Kingaspidoides Hupé, emend. Hupé, Geyer, emend. Genus Cuneoaxiella n. gen. ...................................119 Hardeberga ................................................................20 Weidner & Förster, 2004 ......................................43 SynecologySynecology .................................................................24 .................................................................24 1990b...........................................................................55 1990b...........................................................................55 Cuneoaxiella grandis (Ahlberg & Bergström, Almbacken Epichalnipsus bergstroemi n. sp. ..........................45 Trilobite preservation Trilobite.................................................................21 preservation and taphonomy and taphonomy ......................26 ......................26Kingaspidoides Kingaspidoides nordenskioeldi nordenskioeldi (Linnarsson, (Linnarsson, 1978) .....................................................................120 Ontogenetical and ecological rotundatus (Kiær, 1917) ..............49 Ellipsocephalid Ellipsocephalid morphology morphology and itsaspects phylogenetic and.........................21 its phylogenetic 1883) Epichalnipsus .......................................................................58 1883) .......................................................................58 Acknowledgements .....................................................123 Ontogeny and autecology ........................................21 Kingaspidoides Epichalnipsus kullingi (Ahlberg & Bergström, implications implications ...............................................................28 ...............................................................28 Kingaspidoides lunatus (Bergström lunatus (Bergström & Ahlberg, & Ahlberg, Epichalnipsus..........................................................23 .......................................................................53 Shape of glabella Shape of ........................................................28 glabella ........................................................281981) 1978) .......................................................................62 1981) .......................................................................62 References ....................................................................123 Appendix ......................................................................130 .........................................................23 Subfamily Ellipsocephalinae Matthew, PatternEllipsostrenua of Pattern lateral glabellar of lateral furrows glabellar .........................28 furrows .........................28Kingaspidoides? Kingaspidoides? obscurus (Thorslund obscurus (Thorslund & 1887 .............54 & Dellingia ..................................................................24 GenusWestergård, Kingaspidoides Hupé, emend. Geyer, Morphology Morphology of palpebral of lobes palpebral ...............................29 lobes ...............................29Westergård, 1938) .................................................66 1938) .................................................66 Synecology Transverse Transverse relief.................................................................24 of cranidium relief of cranidium ................................29 ................................29 Genus1990b...........................................................................55 Cambrosaurura Genus Cambrosaurura Geyer n. gen. Geyer .....................67 n. gen. .....................67 Trilobite preservation and taphonomy ......................26 Kingaspidoides nordenskioeldi (Linnarsson, Ellipsocephalid morphology and its phylogenetic 1883) .......................................................................58 implications ...............................................................28 Kingaspidoides lunatus (Bergström & Ahlberg, Shape of glabella ........................................................28 1981) .......................................................................62 Pattern of lateral glabellar furrows .........................28 Kingaspidoides? obscurus (Thorslund & Morphology of palpebral lobes ...............................29 Westergård, 1938) .................................................66 Transverse relief ofiscranidium ................................29 Cambrosaurura Geyer n. gen. .....................67 This book also available open access Genus at Idunn.
2022
ISSN print: 0300-9491
FOSSILS FOSSILS AND STRATA 2022 AND 67 STRATA 67
Number Number 67 •67 September • September 20222022
FOSSILS AND STRATA 67
FOSSILS FOSSILSAND ANDSTRATA STRATA FOSSILS AND STRATA
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FOSSILS FOSSILS AND AND FOSSILS STRATA STRATA AND STRATA
An internaࢼ An internaࢼ onalonal monograph monograph series series of palaeontology of palaeontology and and straࢼstraࢼ graphy graphy An internaࢼonal monograph series of palaeontology and straࢼgraphy
Number • September Number 67 •67 September 20222022
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24-03-2022 07:18:11