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Echinoconchus
''Echinoconchus'' is an extinct genus of brachiopods which lived during the Lower Carboniferous period. The genus was abundant and had a cosmopolitan distribution. Description Like other echinoconchids, ''Echinoconchus'' had thin, recumbent spines arranged in concentric bands on both Valve (mollusc), valves, as well as a corpus with a planoconvex profile and deep cavity. This genus had a transversely subcircular outline, weakly concave dorsal valve and short dorsal trail. Ridges supporting the narrow Cardinal processes, cardinal process are present, as well as elongated, mildly anteriorly-raised Adductor muscles (bivalve), adductor muscle scars. Classification Leighton & Maples (2002) conducted multiple phylogenetic analyses which are strongly in agreement that the four subfamilies Buxtoniinae, Echinoconchinae, Pustulinae and Juresaniinae form the family Echinoconchidae. The cladogram results of their phylogenetic analyses are displayed in the cladogram below: References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoconchus
''Echinoconchus'' is an extinct genus of brachiopods which lived during the Lower Carboniferous period. The genus was abundant and had a cosmopolitan distribution. Description Like other echinoconchids, ''Echinoconchus'' had thin, recumbent spines arranged in concentric bands on both Valve (mollusc), valves, as well as a corpus with a planoconvex profile and deep cavity. This genus had a transversely subcircular outline, weakly concave dorsal valve and short dorsal trail. Ridges supporting the narrow Cardinal processes, cardinal process are present, as well as elongated, mildly anteriorly-raised Adductor muscles (bivalve), adductor muscle scars. Classification Leighton & Maples (2002) conducted multiple phylogenetic analyses which are strongly in agreement that the four subfamilies Buxtoniinae, Echinoconchinae, Pustulinae and Juresaniinae form the family Echinoconchidae. The cladogram results of their phylogenetic analyses are displayed in the cladogram below: References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |