The Ellesmeroceratidae constitute a family within the cephalopod order Ellesmerocerida. They lived from the Upper Cambrian to the Lower Ordovician. They...
6 KB (662 words) - 08:22, 24 August 2023
oversplit. Most of these early forms died out, but a single family, the Ellesmeroceratidae, survived to the early Ordovician, where it ultimately gave rise to...
37 KB (3,465 words) - 14:06, 14 June 2024
Wanwankau, Upper Cambrian Trempealeauan of China, assigned to the Ellesmeroceratidae. The shell of Eburoceras is long and narrow, curved in a broad arc...
2 KB (210 words) - 16:06, 28 March 2020
Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: †Ellesmerocerida Family: †Ellesmeroceratidae Genus: †Paleoceras Flower, 1954...
1 KB (91 words) - 21:29, 16 March 2024
that are concave in outline. Accordingly, the order includes the Ellesmeroceratidae, Protocycloceratidae, Cyclostomiceratidae, Bassleroceratidae, Eothinoceratidae...
8 KB (890 words) - 16:20, 14 January 2024
Late/Upper Cambrian nautiloids, member of the Ellesmerocerida and probably Ellesmeroceratidae according to Jack Sepkoski's list of cephalopod genera. Sepkoski J...
829 bytes (36 words) - 01:19, 11 October 2021
Plectronocerida, family Plectronoceratidae, or the Ellesmerocerida, family Ellesmeroceratidae (Flower, 1954). On the other hand, Teichert (1964) included Shungtangendoceras...
3 KB (268 words) - 11:35, 11 August 2022
Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: †Ellesmerocerida Family: †Ellesmeroceratidae Genus: †Clarkoceras Ruedemann, 1905...
3 KB (360 words) - 01:45, 12 June 2024
Ellesmeroceras is the type genus for the Ellesmeroceratidae, a family of primitive nautiloid cephalopods, that is characterized by its small, generally...
2 KB (194 words) - 19:42, 18 July 2023
classification Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ellesmerocerida Family: Ellesmeroceratidae Genus: Barnesoceras Flower, 1964...
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classification Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ellesmerocerida Family: Ellesmeroceratidae Genus: Albertoceras Ulrich & Foerste, 1935...
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Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: Ellesmerocerida Family: Ellesmeroceratidae Genus: Burenoceras Ulrich & Foeste, 1931...
2 KB (130 words) - 10:11, 6 March 2023
Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: Ellesmerocerida Family: Ellesmeroceratidae Genus: Dakeoceras Ulrich & Furnish, 1931...
2 KB (157 words) - 19:41, 18 July 2023
Cephalopoda Subclass: Nautiloidea Order: †Ellesmerocerida Family: †Ellesmeroceratidae Genus: †Paradakeoceras Flower, 1964 Species P. minor Flower, 1964...
2 KB (159 words) - 21:32, 16 March 2024
Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: Ellesmerocerida Family: Ellesmeroceratidae Genus: Levisoceras Flower, 1964...
2 KB (179 words) - 03:03, 22 July 2024
Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: †Ellesmerocerida Family: †Ellesmeroceratidae Genus: †Ectenolites Ulrich and Foeste, 1935...
2 KB (183 words) - 10:36, 20 March 2024
ventral surface. Its inclusion in the Baltoceratidae rather than in the Ellesmeroceratidae is based in large part on the lack of observable diaphragms in the...
1 KB (137 words) - 22:17, 27 December 2022
by Flower (1964) and Hook and Flower (1977), but reassigned to the Ellesmeroceratidae by Kröger et al. (2007) Whether Rioceras is assigned to the Baltoceratidae...
2 KB (282 words) - 05:48, 29 April 2021
Animalia Phylum: Mollusca Class: Cephalopoda Subclass: Nautiloidea Order: Ellesmerocerida Family: Ellesmeroceratidae Genus: Quebecoceras Foeste, 1925...
2 KB (165 words) - 10:10, 21 March 2018
siphuncle to be dorsal. Flower (1964) included Beekmanoceras in the Ellesmeroceratidae believing the siphuncle to be ventral and the curvature to be endogastric...
2 KB (204 words) - 04:45, 5 March 2021
to the nautiloid order Ellesmerocerida, and predominantly to the Ellesmeroceratidae. Among these were Clarkoceras and Ectenolites which continued from...
6 KB (571 words) - 09:07, 17 November 2023
Eremoceras is a genus in the Ellesmeroceratidae which lived during the Early Ordovician, characterized by an orthoconic adult stage, similar to Ellesmeroceras...
1 KB (87 words) - 23:28, 16 June 2019
Cyptendoceras is an extinct nautiloid cephalopod included in the family Ellesmeroceratidae that lived in what would be North and South America during the latter...
3 KB (202 words) - 01:28, 20 November 2022