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1-20 OF 36 RESULTS FOR
Diploporita
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Journal Article
‘ Aristocystites ? subcylindricus var. de bohemicus Barrande, 1887’ is a valid species of Aristocystites (Echinodermata, Diploporita): description and taxonomic consequences
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 July 2019
Journal of Paleontology (2019) 93 (4): 822–826.
... of the morphology of the Cystidea : Journal of the Linnean Society (Zoology) , v. 34 , p. 1 – 52 . Gutiérrez-Marco , J.C. , 2000 . Revisión taxonómica de ‘ Echinosphaerites ’ murchisoni Verneuil y Barrande, 1855 (Echinodermata, Diploporita) del Ordovícico Medio centroibérico (España) : Geogaceta...
Journal Article
The phylogeny of the Diploporita: a polyphyletic assemblage of blastozoan echinoderms
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 July 2019
Journal of Paleontology (2019) 93 (4): 740–752.
... on respiratory structures is an oversimplification of a much more complex evolutionary pattern (Sumrall and Gahn, 2006 ). The only morphological feature that currently groups species into Diploporita is the presence of diplopore respiratory structures. Diplopore-bearing blastozoans show wide variation...
Journal Article
Generic revision of the Holocystitidae of North America (Diploporita, Echinodermata) based on universal elemental homology
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 07 March 2017
Journal of Paleontology (2017) 91 (4): 755–766.
... Blastozoa Sprinkle, 1973 Class Diploporita Müller, 1854 Superfamily Sphaeronitida Neumayr, 1889 Family Holocystitidae Miller, 1889 Holocystites Hall, 1861 29 11 2016 Copyright © 2017, The Paleontological Society 2017 The Paleontological Society...
Image
Representative specimens within Diploporita. Diploporita encompasses wide m...
in The phylogeny of the Diploporita: a polyphyletic assemblage of blastozoan echinoderms
> Journal of Paleontology
Published: 01 July 2019
Figure 1. Representative specimens within Diploporita. Diploporita encompasses wide morphological variability, likely indicating that the group is polyphyletic. ( 1 ) Eumorphocystis multiporata (Glyptosphaeritida), characterized by ambulacra that are erect distally and lie on biserial floor
Journal Article
Origin and significance of Lovén's Law in echinoderms
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 November 2020
Journal of Paleontology (2020) 94 (6): 1089–1102.
... branching of the ambulacra. The ontogenetic sequence was triradiate, then lateral ambulacra bifurcated, and finally second brachioles developed. Positions of second brachioles of pentaradiate glyptocystitoids code as AR, BL, CR, DL, ER. Other examples of Lovén's Law occur in Diploporita, Ophiuroidea...
Journal Article
Deep echinoderm phylogeny preserved in organic molecules from Paleozoic fossils
Journal: Geology
Publisher: Geological Society of America
Published: 01 May 2016
Geology (2016) 44 (5): 379–382.
... to the classes Asteroidea, Blastoidea, Crinoidea, Diploporita, Echinoidea, and Edrioasteroidea are used to assess the position of crinoids and blastozoans within competing echinoderm phylogenetic hypotheses. Fluorescence excitation-emission spectroscopy of organic molecules in fossil extracts are used to compare...
Journal Article
A RECONNAISSANCE OF SKELETAL CRYSTALLOGRAPHY IN RHOMBIFERANS, DIPLOPORANS, AND PARACRINOIDS
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 November 2004
Journal of Paleontology (2004) 78 (6): 1154–1162.
... to communicate. In particular, many of the early echinoderm classes, including the Rhombifera, Diploporita, and Paracrinoidea, are informally known as cystoids [= blastozoans of Sprinkle (1973) or “cystoids sensu lato” of Paul (1988) , but broader than the class Cystoidea of Kesling (1967) ], a group...
Image
Strict consensus of the 246 most parsimonious trees, if the three groups (i...
in The phylogeny of the Diploporita: a polyphyletic assemblage of blastozoan echinoderms
> Journal of Paleontology
Published: 01 July 2019
Figure 4. Strict consensus of the 246 most parsimonious trees, if the three groups (i.e., Sphaeronitida, Glyptosphaeritida, Asteroblastida) were forced to each be a clade, without forcing the three to also be contained within a larger Diploporita clade. The resulting tree had a length of 109, 10
Journal Article
Diploporite (Echinodermata, Blastozoa) Thecal Attachment Structures from the Silurian of Southeastern Indiana
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 January 2014
Journal of Paleontology (2014) 88 (1): 179–186.
... marked by arrows; note the irregular texture formed by firmground Thalassinoides Ehrenberg, 1944 burrows; field of view is approximately 0.35 m wide by 0.3 m tall. Class Diploporita Müller, 1854 Superfamily Sphaeronitida Neumayr, 1889 Family Holocystitidae Miller, 1889...
Journal Article
Symbiotic embedment structures in Silurian Caryocrinites (Echinodermata, Rhombifera, Hemicosmitida)
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 March 2021
Journal of Paleontology (2021) 95 (2): 320–326.
... analyses. This occurrence represents the first formal description of symbiotic pits on rhombiferans and indicates that at least four pelmatozoan classes (Crinoidea, Diploporita, Eocrinoidea, Rhombifera) were infested by pit-forming organisms. Symbiotic pits are thus far known only from hemicosmitid...
Journal Article
Estimating dispersal and evolutionary dynamics in diploporan blastozoans (Echinodermata) across the great Ordovician biodiversification event
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 May 2021
Paleobiology (2021) 47 (2): 198–220.
... developed by Sheffield and Sumrall ( 2019a ), which tested the hypothesis that Diploporita was not a monophyletic group of echinoderms. To test this hypothesis, other groups of echinoderms (e.g., crinoids, eocrinoids, rhombiferans) were included in the analysis. This tree ranges from the Cambrian...
Journal Article
Late Ordovician (Hirnantian) diploporitan fauna of Anticosti Island, Quebec, Canada: implications for evolutionary and biogeographic patterns
Journal: Canadian Journal of Earth Sciences
Publisher: Canadian Science Publishing
Published: 06 December 2017
Canadian Journal of Earth Sciences (2018) 55 (1): 1–7.
... . Frest , T.J. , Strimple , H. , and Paul , C.R.C. 2011 . The North American Holocystites Fauna (Echinodermata: Blastozoa: Diploporita): paleobiology and systematics . Bulletins of American Paleontology , 380 : 141 . Guensburg , T.E. , and Sprinkle , J. 2000 . Ecologic...
Journal Article
Taphonomy of diploporite (Echinodermata) holdfasts from a Silurian hardground, southeastern Indiana, United States: palaeoecologic and stratigraphic significance
Journal: Geological Magazine
Publisher: Cambridge University Press
Published: 19 September 2013
Geological Magazine (2014) 151 (4): 649–665.
...
dissolution occur from exposure of the surface to modern weathering. Diploporita attachment structures encrustation Wenlock Holocystites fauna Diploporite ‘cystoids’ are a clade of early to middle Palaeozoic (Ordovician–Devonian)
blastozoan echinoderms characterized by dipore-based...
Image
Diplopore-bearing taxa utilized within this phylogenetic analysis. The orig...
in The phylogeny of the Diploporita: a polyphyletic assemblage of blastozoan echinoderms
> Journal of Paleontology
Published: 01 July 2019
within Diploporita Paleocontinent Aristocystites bohemicus Barrande, 1887 Sphaeronitida Gondwana Asteroblastus stellatus Eichwald, 1862 Asteroblastida Baltica Dactylocystis schmidti Jaeckel, 1899 Glyptosphaeritida Baltica Estonocystis antropoffi Jaekel, 1918
Journal Article
New insights concerning homology of the oral region and ambulacral system plating of pentaradial echinoderms
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 10 May 2017
Journal of Paleontology (2017) 91 (4): 604–617.
... , The North American Holocystites fauna (Echinodermata, Blastozoa: Diploporita): paleobiology and systematics : Bulletins of American Paleontology , v. 380 , p. 141 .
Guensburg
T.E.
, and
Sprinkle
J.
, 2007 , Phylogenetic implications of the Protocrinoidea: Blastozoans...
Journal Article
Progress in echinoderm paleobiology
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 10 May 2017
Journal of Paleontology (2017) 91 (4): 579–581.
... of the Holocystitidae of North America (Diploporita: Echinodermata) based on universal elemental homology: Journal of Paleontology.
Smith
A.B.
, and
Benson
R.B.J.
, 2013 , Marine diversity in the geological record, its relationship to surviving bedrock area, lithofacies diversity and original marine...
Journal Article
Paleobiogeography, paleoecology, diversity, and speciation patterns in the Eublastoidea (Blastozoa: Echinodermata)
Journal: Paleobiology
Publisher: Paleontological Society
Published: 01 May 2021
Paleobiology (2021) 47 (2): 221–235.
... careful and accurate identification of homologous elements across described species (Sumrall and Waters 2012 ). Blastozoans are further divided into subgroups by the presence of specific respiratory structures (Sprinkle 1973 ); for example, Diploporita possess diplopores (Paul 1972 ) and rhombiferans...
Journal Article
Testing for homologies in the axial skeleton of primitive echinoderms
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 20 February 2017
Journal of Paleontology (2017) 91 (4): 582–603.
... that entire structures were lost immediately rather than being degraded bit by bit from their tips. For example, in the Diploporita, no sphaeronitid is known with ambulacral appendages preserved, and in the Holocystitidae, Frest and Strimple have described a handful of specimens in which the first ambulacral...
Journal Article
MIDDLE NINETEENTH-CENTURY CRINOID STUDIES OF THOMAS AUSTIN, SR. AND THOMAS AUSTIN, JR.: NEWLY DISCOVERED UNPUBLISHED MATERIALS
Journal: Earth Sciences History
Publisher: History of Earth Sciences Society
Published: 01 October 1999
Earth Sciences History (1999) 18 (2): 180–197.
..., Jr. wrote on the plates. Austin and Austin published seventeen plates that include their families Platy-crinidae and Poteriocrinidae. 36 The forty-five additional unpublished plates include illustrations of the remainder of the Crinoidea, as well as some Blastoidea, Rhombifera, Diploporita...
Journal Article
A Silurian (Homerian) pelmatozoan echinoderm fauna from west-central Ohio, USA
Journal: Journal of Paleontology
Publisher: Paleontological Society
Published: 01 September 2023
Journal of Paleontology (2023) 97 (5): 1070–1091.
... of the Holocystites fauna (Diploporita) of North America : Fieldiana Geology , v. 24 , 166 p.
Prokop , R.J.
, 1962 , Blastoids in the Silurian of Bohemia : Věstnik Ŭstřědní Ŭstavu Geologického , v. 37 , p. 301 – 303...
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