Distribution:

• Quaternary of Algeria (8 collections), Australia (1), Brazil (1), Canada (43: Alberta, British Columbia, Manitoba, New Brunswick, Northwest Territories, Nova Scotia, Ontario, Saskatchewan, Yukon), the Congo-Kinshasa (28), Costa Rica (2), Cote D'Ivoire (1), Djibouti (5), Ecuador (1), Egypt (64), El Salvador (1), Eritrea (1), Ethiopia (207), France (1), Germany (2), Kenya (152), Libya (4), Mexico (9), Morocco (4), Namibia (1), Panama (2), Peru (1), South Africa (55), Sudan (9), Swaziland (3), Tanzania (81), the United Kingdom (1), United States (693: Alabama, Alaska, Arizona, Arkansas, California, Colorado, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Maryland, Michigan, Montana, Nebraska, Nevada, New Mexico, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, South Dakota, Texas, Utah, Virginia, Washington, West Virginia, Wyoming), Venezuela (1), Zambia (4)

• Blancan of Greenland (1), Mexico (21), United States (698: Arizona, California, Colorado, Florida, Idaho, Kansas, Montana, Nebraska, Nevada, New Mexico, Oregon, South Dakota, Texas, Utah, Washington, Wyoming)

• Pliocene to Holocene of the Congo-Kinshasa (4), Malawi (1), Uganda (1)

• Pliocene to Pleistocene of the Congo-Kinshasa (26), Djibouti (1), Egypt (1), Ethiopia (26), Kenya (72), Malawi (7), South Africa (9), Tanzania (3), Uganda (13)

• Pliocene of Bolivia (1), Chad (3), the Congo-Kinshasa (1), Ethiopia (74), Kenya (47), Malawi (3), South Africa (15), Tanzania (73), Uganda (16), United States (4: California, Florida)

• Hemphillian of Canada (2: Alberta), Mexico (22), United States (276: Alabama, Arizona, California, Colorado, Florida, Idaho, Indiana, Kansas, Nebraska, Nevada, New Mexico, North Carolina, Oklahoma, Oregon, Texas)

• Miocene to Pliocene of Ethiopia (9), Kenya (6), South Africa (9), Tanzania (20), Uganda (108), United States (2: California)

• Miocene to Pleistocene of Ethiopia (2), Kenya (7), South Africa (1)

• Miocene of Canada (82: Alberta, Saskatchewan), the Czech Republic (1), Egypt (1), El Salvador (2), Ethiopia (1), Germany (1), Guatemala (1), Honduras (13), Kenya (50), Mexico (28), Namibia (1), Panama (1), South Africa (1), Tanzania (1), Uganda (11), United States (2121: Arizona, California, Colorado, Delaware, Florida, Georgia, Idaho, Kansas, Louisiana, Maryland, Montana, Nebraska, Nevada, New Jersey, New Mexico, North Dakota, Oklahoma, Oregon, South Carolina, South Dakota, Texas, Utah, Washington, Wyoming)

• Harrisonian of Canada (1: Saskatchewan), United States (206: California, Colorado, Florida, Montana, Nebraska, New Mexico, South Dakota, Texas, Wyoming)

• Arikareean of United States (235: Arizona, California, Colorado, Florida, Idaho, Montana, Nebraska, Nevada, North Dakota, Oregon, South Dakota, Wyoming)

• Oligocene to Miocene of United States (1: Alabama)

• Oligocene of Canada (9: Saskatchewan), United States (699: Arizona, California, Colorado, Florida, Mississippi, Montana, Nebraska, North Dakota, Oregon, South Dakota, Texas, Wyoming)

• Eocene to Oligocene of United States (9: Florida, Utah, Wyoming)

• Eocene of Canada (33: British Columbia, Northwest Territories, Saskatchewan), Germany (1), Mexico (4), Spain (99), the United Kingdom (2), United States (2467: Alabama, Arkansas, California, Colorado, Mississippi, Montana, Nebraska, Nevada, New Jersey, New Mexico, North Dakota, Oregon, South Dakota, Texas, Utah, Virginia, Wyoming)

• Paleocene to Eocene of the Netherlands (1)

• Paleocene of Canada (54: Alberta, Saskatchewan), United States (841: California, Colorado, Louisiana, Maryland, Montana, New Mexico, North Dakota, South Carolina, Texas, Utah, Wyoming)

• Cretaceous of Argentina (2), Belgium (1), Canada (55: Alberta, Saskatchewan), Germany (1), Israel (1), Mexico (1), Mongolia (1), the United Kingdom (2), United States (324: Colorado, Georgia, Mississippi, Montana, New Jersey, New Mexico, North Carolina, North Dakota, Oklahoma, South Dakota, Texas, Utah, Wyoming)

• Jurassic of South Africa (1), the United Kingdom (1), United States (5: New Mexico, Utah, Wyoming), Zimbabwe (1)

• Triassic of France (1), Germany (3), Switzerland (1), United States (5: Arizona, Texas)

• Wolfcamp of United States (1: Texas)

• Permian of the Russian Federation (1), South Africa (2), United States (9: Kansas, Texas)

• Carboniferous of France (1), Germany (1), Ireland (2), the United Kingdom (8), United States (12: Illinois, Indiana, Missouri, Montana, Oklahoma, illinois)

• Devonian of Belgium (139), the Czech Republic (1), South Africa (2), United States (855: Illinois, Indiana, Iowa, Kentucky, Maryland, Michigan, Missouri, Montana, Nevada, New Mexico, New York, Ohio, Pennsylvania, Virginia, West Virginia, Wisconsin), Western Sahara (2)

• Silurian of the United Kingdom (3), United States (2: Kentucky, New York)

• Niagaran of United States (1: Ohio)

Total: 11397 collections including 55034 occurrences

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