''Echinoconchus'' is an extinct

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

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 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 process are present, as well as elongated, mildly anteriorly-raised

adductor muscle A adductor muscle is any muscle that causes adduction. It may refer to: Humans * Adductor muscles of the hip, the most common reference in humans, but may also refer to ** Adductor brevis muscle, a muscle in the thigh situated immediately behind ...

scars.

Classification

Leighton & Maples (2002) conducted multiple phylogenetic analyses which are strongly in agreement that the four subfamilies Buxtoniinae,

Echinoconchinae Echinoconchinae is an extinct subfamily of brachiopods which lived during the Carboniferous and Permian periods in marine habitats. The family had a cosmopolitan distribution. Taxonomy The exact evolutionary relationships of Echinoconchinae re ...

Pustulinae Pustulinae is an extinct subfamily of medium to large-sized brachiopods which lived during the Early Carboniferous period in marine habitats. It is named after the type genus ''Pustula''. Taxonomy The exact evolutionary relationships of Pustu ...

and

Juresaniinae Juresaniinae is an extinct subfamily of brachiopods which lived during the Carboniferous and Permian periods in marine habitats. Taxonomy The exact evolutionary relationships of Juresaniinae relative to other groups of the suborder Productidin ...

form the family Echinoconchidae. The cladogram results of their phylogenetic analyses are displayed in the cladogram below:

References

{{Taxonbar, from=Q122238163 Rhynchonellata