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Leptomitus
Early Sponge Evolution: a Review and Phylogenetic Framework
First Report of Crumillospongia (Demospongea) from the Cambrian of Europe (Murero Biota, Spain)
Smithsonian Miscellaneous Collections
AND MICROFOSSIL RECORD of the CAMBRIAN PRIAPULID OTTOIA by MARTIN R
I.—THE FAUNA of the LOWER CAMBRIAN OR OLENELLUS ZONE. by CHARLES DOOLITTLE WALCOTT, F.G.S., of the Smithsonian Institution, Washington, D.C., U.S.A
Paleoecology of the Greater Phyllopod Bed Community, Burgess Shale ⁎ Jean-Bernard Caron , Donald A
(∼529–514 Ma): Implications for Biota-Environment Co-Evolution ∗ Chengsheng Jin A, Chao Li A, , Thomas J
Canada Archives Canada Published Heritage Direction Du Branch Patrimoine De I'edition
Subsurface Facies Analysis of the Cambrian
Spanish Flora and Invertebrate Fossil Collection Information Sheet 4 (Cases 29-72)
Untitled Minutes of the March 2, 1864 Meeting
The Burgess Shale the Chengjiang
Shallow−Water Occurrence of Wiwaxia in the Middle Cambrian of the Barrandian Area, Czech Republic
Burgess Shale: Cambrian Explosion in Full Bloom
Texto Completo
Newsletter Number 56
1361 Botting.Vp
Murero Formation, Western Iberian Chain)
Top View
Geological Sukvey
EARLY PALEOZOIC DIVERSIFICATION of SPONGES: NEW DATA and EVIDENCES Joachim Reitner & Dorte Mehl
Cambrian Explosion
Revisiting the Cambrian Burgess Shale Palaeocommunity in Light of New Field Discoveries from Marble Canyon, Kootenay National Park, British Columbia
The Demosponge Leptomitus Cf. L. Lineatus, First Occurrence from the Middle Cambrian of Spain (Murero Formation, Western Iberian Chain)
United States Department of the Interior Geological Survey Short Papers For