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Ambocoelia umbonata (Conrad, 1842)

Ambocoelia umbonata
Ambocoelia umbonata

Scientific Classification

Kingdom: Animalia
Phylum: Brachiopoda
Class: Rhynchonellata
Order: Spiriferida
Family: Ambocoeliidae
Genus: Ambocoelia
Species: Ambocoelia umbonata (Conrad, 1842)

Information

Geological Range

Late Devonian

Middle Devonian

Paleogeographic Distribution

New York

Alaska

West Virginia

Pennsylvania

Ohio

Michigan

Virginia

Maryland

Stratigraphic Occurrences

Alfred Shale Formation (NY)
Machias Formation (NY)
Jennings Formation (MD)
Parkhead Member (MD)
Chemung Formation (VA)
Chemung Formation (PA)
Portage Member (PA)
Chemung Formation (NY)
Cayuta Member (NY)
Triangle Formation (NY)
Meads Creek equivalent formation (NY)
Rhinestreet Formation (NY)
Beers Hill Member (NY)
Beers Hill equivalent formation (NY)
“Millport equivalent formation” (NY)
Hubbard Quarry Formation (NY)
Geneseo Formation (NY)
Boyle Formation (KY)
North Vernon Formation (IN)
Silver Creek Member (IN)
Beechwood Member (IN)
Plum Brook Shale Formation (OH)
Silica Formation (OH)
Silica Formation (MI)
Harrel Formation (PA)
Tully Member (PA)
Mahantango Formation (WV)
Pokejoy Member (WV)
Clearville Member (WV)
Mahantango Formation (PA)
Upper Shale Member (PA)
Montebello Member (PA)
Tully Formation (NY)
Upper Tully Member (NY)
“Laurens” Member (NY)
“West Brook” Member (NY)
Lower Tully Member (NY)
Moscow Formation (NY)
Windom Member (NY)
Kashong Member (NY)
Ludlowville Formation (NY)
Ivy Point Member (NY)
Wanakah Member (NY)
Ledyard Member (NY)
Otisco Member (NY)
Centerfield Member (NY)
Skaneateles Formation (NY)
Butternut Member (NY)
Delphi Station Member (NY)
Levanna Member (NY)
Mottville Member (NY)
Mount Marion Formation (NY)
East Berne Member (NY)
Oatka Creek Formation (NY)
Wadleigh Limestone Formation (AK)
Onondaga Formation (NY)
Moorehouse Member (NY)
Edgecliff Member (NY)

References

Hall, J., 1867: p. 259-261, pl. 44.

Wilson, K., 2014: p. 112-113.

Linsley, D., 1994: p. 200, figs. 1-10.

Remarks

From Wilson (2014, p. 112): “Small shell, with strongly convex. Pedicle valve almost hemispherical with distinct sinus, brachial valve flat. To 5-10mm.”

Originally described as Orthis umbonata by Conrad in 1842, recombined as Ambocoelia umbonata by James Hall in 1860.

Online Resources

Paleobiology Database

Media

Images

Specimen of Ambocoelia umbonata.
Ambocoelia umbonata from the Moscow Fm., Windom Shale Mbr. of Cayuga County, New York (PRI 104114).
Illustrations of Ambocoelia umbonata.
Ambocoelia umbonata illustrations from Hall.

3D Images

Brachiopod: Ambocoelia umbonata (PRI 83732)

Related

Allenella tullius
Mucrospirifer mucronatus
Athyris spiriferoides