Echinaria (brachiopod)

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Echinaria
Temporal range: Gzhelian–Lower Permian
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Brachiopoda
Class: Strophomenata
Order: Productida
Family: Echinoconchidae
Tribe: Echinoconchini
Genus: Echinaria
Muir-Wood & Cooper, 1960

Echinaria is an extinct genus of brachiopods which lived during the Upper Carboniferous and Lower Permian periods. Its fossils have been found in Eurasia, North America and northern South America. [1]

Contents

Description

Like other echinoconchids, Echinaria had thin, recumbent spines arranged in concentric bands on both valves, as well as a corpus with a planoconvex profile and deep cavity. Members of this genus had cardinal ridges and an elongated outline which widened anteriorly. [1] Echinaria are medium to large-sized echinoconchids, and while notably larger than Echinoconchus , many similarities are observed between the two genera and they are placed in the same subfamily. [2]

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: [2]

Productella

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<span class="mw-page-title-main">Echinoconchinae</span> Subfamily of marine lamp shells

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<i>Echinoconchus</i> Genus of marine lamp shells

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Pustula is an extinct genus of brachiopods which lived during the Carboniferous period. It is the type genus of the subfamily Pustulinae. Its fossils have been found in Eurasia, North America and northern Africa.

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References

  1. 1 2 Williams, Alwyn (2000). "Part H Brachiopoda (revised): Volumes 2 & 3, Linguliformea, Craniiformea, Rhynchonelliformea (part)., Treatise on Invertebrate Paleontology". Treatise on Invertebrate Paleontology. Geological Society of America: 510–511. doi:10.17161/dt.v0i0.5209.
  2. 1 2 Leighton, Lindsey R.; Maples, Christopher G. (July 2002). "Evaluating internal versus external characters: Phylogenetic analyses of the Echinoconchidae, Buxtoniinae, and Juresaniinae (Phylum Brachiopoda)". Journal of Paleontology. 76 (4): 659. doi:10.1666/0022-3360(2002)076<0659:EIVECP>2.0.CO;2. ISSN   0022-3360.