the Cambrian, cephalopods are most common in shallow near-shore environments, but they have been found in deeper waters too. Cephalopods were thought to...
37 KB (4,187 words) - 23:38, 1 July 2024
species of cephalopods have been identified. Two important extinct taxa are the Ammonoidea (ammonites) and Belemnoidea (belemnites). Extant cephalopods range...
139 KB (15,484 words) - 20:02, 29 October 2024
is truly convergent evolution or parallel evolution. Unlike the vertebrate camera eye, the cephalopods' form as invaginations of the body surface (rather...
11 KB (1,262 words) - 07:21, 23 August 2024
difficult to measure in nonhuman animals, cephalopods are the most intelligent invertebrates. The study of cephalopod intelligence also has an important comparative...
32 KB (3,172 words) - 09:19, 17 September 2024
Plectronoceras (category Cambrian molluscs of North America)
of cephalopod evolution", in Wilbur, Karl M.; Clarke, M.R.; Trueman, E.R. (eds.), The Mollusca, vol. 12. Paleontology and neontology of Cephalopods,...
3 KB (213 words) - 10:37, 20 March 2024
Belosepiellidae is an extinct family of cephalopods, including just two species. "World Register of Marine Species". 1454583. Retrieved July 3, 2024. v...
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Goniatite (category Prehistoric cephalopod orders)
Goniatids, informally goniatites, are ammonoid cephalopods that form the order Goniatitida, derived from the more primitive Agoniatitida during the Middle...
7 KB (793 words) - 15:25, 21 June 2024
internal bodypart found in many cephalopods of the superorder Decapodiformes (particularly squids) and in a single extant member of the Octopodiformes, the vampire...
7 KB (430 words) - 15:42, 4 June 2024
Ammonitida (category Cephalopod orders)
Ammonitida or "True ammonites" are an order of ammonoid cephalopods that lived from the Jurassic through Paleocene time periods, commonly with intricate...
2 KB (204 words) - 23:10, 29 October 2024
diversification of brachiopods through geologic time Evolution of cephalopods – Origin and diversification of cephalopods through geologic time Evolution of fish –...
26 KB (4,570 words) - 21:37, 9 October 2024
Plectronocerida (category Prehistoric cephalopod orders)
shelled cephalopods, plectronocerids had a tube called a siphuncle, which let them fill the chambers of their phragmocone with gas instead of water, thus...
4 KB (424 words) - 09:36, 14 February 2023
Orthoceratidae (category Prehistoric cephalopod families)
Orthoceratidae is an extinct family of actively mobile carnivorous cephalopods, subclass Nautiloidea, that lived in what would be North America, Europe...
3 KB (278 words) - 10:36, 23 June 2024
Nautilida (category Paleozoic cephalopods)
Teichert, T. (1988) "Main Features of Cephalopod Evolution", in The Mollusca vol. 12, Paleontology and Neontology of Cephalopods, ed. by M.R. Clarke & E.R. Trueman...
10 KB (1,127 words) - 17:26, 3 December 2023
Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes...
239 KB (24,717 words) - 02:39, 24 October 2024
Coleoidea (redirect from Soft-bodied cephalopods)
(August 2011). "Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules: Extant cephalopods are younger than...
9 KB (865 words) - 12:33, 14 October 2024
Orthocerida (category Mesozoic cephalopods)
Orthocerida, also known as the Michelinocerida, is an order of extinct orthoceratoid cephalopods that lived from the Early Ordovician (490 million years ago)...
10 KB (1,019 words) - 11:12, 24 December 2023
Ammonoidea (category Cephalopods described in 1884)
Ammonoids are extinct spiral shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living coleoids (i.e., octopuses...
52 KB (5,802 words) - 23:24, 29 October 2024
Endocerida (category Ordovician cephalopods)
a group of cephalopods from the Lower Paleozoic with cone-like deposits in their siphuncle. Endocerida was a diverse group of cephalopods that lived...
13 KB (1,355 words) - 12:35, 14 October 2024
Nautiloid (category Paleozoic cephalopods)
Nautiloids are a group of marine cephalopods (Mollusca) which originated in the Late Cambrian and are represented today by the living Nautilus and Allonautilus...
37 KB (3,465 words) - 12:40, 14 October 2024
Orthoceras (redirect from Orthoceras (cephalopod))
Orthoceras is a genus of extinct nautiloid cephalopod restricted to Middle Ordovician-aged marine limestones of the Baltic States and Sweden. This genus...
5 KB (437 words) - 01:31, 30 October 2024
though perhaps still second to the largest living cephalopods when considering tissue mass alone. Cephalopods vastly larger than either giant or colossal squids...
359 KB (29,836 words) - 08:45, 1 October 2024
Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception...
2 KB (184 words) - 12:33, 9 January 2024
Otto Schindewolf (section Evolution)
the evolution of corals and cephalopods. Schindewolf was on the faculty at the University of Marburg from 1919 until 1927. Then he became director of the...
7 KB (709 words) - 14:23, 10 September 2023
phylum includes gastropods, bivalves, scaphopods, cephalopods, and several other groups. The fossil record of mollusks is relatively complete, and they are...
27 KB (2,671 words) - 15:15, 30 July 2024
Ellesmerocerida (category Cephalopod orders)
The Ellesmerocerida is an order of primitive cephalopods belonging to the subclass Nautiloidea with a widespread distribution that lived during the Late...
8 KB (890 words) - 16:20, 14 January 2024
Bactritida (category Paleozoic cephalopods of Europe)
Bactritida are a small order of more or less straight-shelled (orthoconic) cephalopods that first appeared during the Emsian stage of the Devonian period (407...
7 KB (713 words) - 15:28, 30 December 2023
The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to...
83 KB (9,845 words) - 13:38, 30 September 2024
mainly fossils. In biology, evolution is any change across successive generations in the heritable characteristics of biological populations. Evolutionary...
85 KB (4,733 words) - 00:11, 13 September 2024
Teuthology (category Cephalopod stubs)
is the study of cephalopods. Cephalopods are members of the class Cephalopoda in the Phylum Mollusca. Some common examples of cephalopods are octopus,...
6 KB (495 words) - 16:02, 17 August 2024