Antiquatonia

Antiquatonia
Temporal range: Visean–Serpukhovian
Fossil from the Boggs Shale
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Brachiopoda
Class: †Strophomenata
Order: †Productida
Family: †Productidae
Tribe: †Retariini
Genus: †Antiquatonia
Miloradovich, 1945
Species
List
  • A. blackwelderi (Gordon)
    A. coloradoensis (Girty)
    A. cooperi (Shi, 1990)
    A. costata (Sowerby, 1827)
    A. inflativentra (Cooper & Grant, 1975)
    A. insculpta (Muir-Wood, 1930)
    A. jemezensis (Harlow & Sutherland)
    A. pernodosa (Easton, 1962)
    A. portlockianus (Norwood & Pratten, 1855)
    A. posthindi (Solomina, 1970)
    A. reticulata (Cooper, 1957)

Antiquatonia is an extinct genus of brachiopod belonging to the order Productida and family Productidae. Specimens have been found in Carboniferous beds across many continents, suggesting the genus had a cosmopolitan distribution.[1] Species level taxonomy of Antiquatonia is in need of revision.[2]

Description

Like other members of Productinae, Antiquatonia had a deep corpus cavity, a geniculate profile with long trails, and well-developed marginal structures such as ear baffles. This genus had thick, halteroid ventral spines. The ears were flanked by a ridge of ventral spines, with complimentary internal lateral ridges.[1]

Classification

Muir-Wood & Cooper (1960) placed Antiquatonia in the subfamily Dictyoclostinae, though later analyses would find it to belong in Productinae instead. Leighton & Maples (2002) conducted multiple phylogenetic analyses which are strongly in agreement that Antiquatonia forms a clade with Diaphragmus and Spinocarinifera. The results of their phylogenetic analyses are displayed in the cladogram below:[2]

Productella

References

  1. ^ a b Williams, A.; Carlson, S. J.; Brunton, C. H. C.; Holmer, L. E.; Popov, L. E.; Mergl, M.; Laurie, J. R.; Bassett, M. G.; Cocks, L. R. M.; Rong, J.-Y.; Lazarev, S. S.; Grant, R. E.; Racheboeuf, P. R.; Jin, Y.-G.; Wardlaw, B. R.; Harper, D. A. T.; Wright, A. D. (2000). "Part H Brachiopoda (revised) Volumes 2 & 3, Linguliformea, Craniiformea, Rhynchonelliformea (part)". Treatise on Invertebrate Paleontology. p. 472.
  2. ^ a b 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.