| Monilispira bigemma | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Conoidea |
| Family: | Pseudomelatomidae |
| Genus: | Monilispira |
| Species: | M. bigemma |
| Binomial name | |
| Monilispira bigemma (W. H. Dall, 1890 ) | |
Monilispira bigemma is an extinct species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae. [1]
The length of the shell attains 16 mm.
 | This section needs expansion. You can help by adding to it. (December 2018) |
The Pliocene is the epoch in the geologic time scale that extends from 5.333 million to 2.58 million years ago. It is the second and most recent epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch. Prior to the 2009 revision of the geologic time scale, which placed the four most recent major glaciations entirely within the Pleistocene, the Pliocene also included the Gelasian Stage, which lasted from 2.588 to 1.806 million years ago, and is now included in the Pleistocene.
Hesperotestudo is an extinct genus of tortoise native to North and Central America from the Oligocene to the Late Pleistocene. Species of Hesperotesudo varied widely in size, with the largest unnamed species from El Salvador reaching 150 cm (4.9 ft) in carapace length, larger than that of extant giant tortoises. Historically considered a subgenus of Geochelone, it is now considered to be distantly related to that genus. Its closest relatives are the extant Gopherus and the extinct Stylemys. The ancestor of the three genera arrived in North America during the Early Eocene. The bodies of Hesperotesudo species were extensively covered with large dermal ossicles, which in life were covered in keratin. It has been suggested that species of Hesperotestudo were relatively tolerant of cold weather. Hesperotestudo became extinct at the end of the Pleistocene and beginning of the Holocene co-incident with the arrival of the first humans in North America, and sites have been found where Hesperotestudo were butchered.
Hystrivasum horridum, common name the rough or shaggy vase, is a fossil species of medium-sized predatory gastropod in the family Turbinellidae. This species is extinct and is found in the Pleistocene deposits of Florida.
+
Monilispira bandata is a species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae.
Monilispira circumcincta is a species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, the turrids and allies.
Monilispira is a genus of sea snails, marine gastropod mollusks in the family Pseudomelatomidae, the turrids and allies.
Paleontology in Idaho refers to paleontological research occurring within or conducted by people from the U.S. state of Idaho. The fossil record of Idaho spans much of the geologic column from the Precambrian onward. During the Precambrian, bacteria formed stromatolites while worms left behind trace fossils. The state was mostly covered by a shallow sea during the majority of the Paleozoic era. This sea became home to creatures like brachiopods, corals and trilobites. Idaho continued to be a largely marine environment through the Triassic and Jurassic periods of the Mesozoic era, when brachiopods, bryozoans, corals, ichthyosaurs and sharks inhabited the local waters. The eastern part of the state was dry land during the ensuing Cretaceous period when dinosaurs roamed the area and trees grew which would later form petrified wood.
Tubul Formation is an Early Pleistocene sedimentary formation located in Arauco Province in south–central Chile. Its sediments were deposited in marine conditions. It overlies unconformably the folded sedimentary formations of Ranquil (Miocene–Pliocene), Quiriquina and the Lebu Group (Paleocene-Eocene).
Sedilia is a genus of sea snails, marine gastropod mollusks in the family Drilliidae.
Mangelia gardnerae is a minute extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.
Carinodrillia elocata is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Carinodrillia pylonia is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Hindsiclava antealesidota is an extinct species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, the turrids and allies.
Hindsiclava perspirata is an extinct species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae, the turrids and allies.
Knefastia lindae is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
Glycymeris yessoensis is a species of bivalve mollusc in the family Glycymerididae. It can be found burrowing in soft sediment in shallow water in the Pacific Ocean around the coasts of China and Japan. It is often associated with a polychaete worm with which it forms a commensal relationship.
Monilispira lysidia is a species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae.
Monilispira archeri is an extinct species of sea snail, a marine gastropod mollusc in the family Pseudomelatomidae.
Strictispira acurugata is an extinct species of small sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
 | This article about prehistoric Pseudomelatomidae is a stub. You can help Wikipedia by expanding it. |