Wikipedia
Arpadites
Arpadites is a genus of ceratitids in the family Trachyceratidae[1] from the Middle and Upper Triassic (Ladinian and Carnian stages) of Nevada (United States),[2] Alps, Italy, Balkans, Himalayas, and Japan. (Arkel et al. 1962, L162)
| Arpadites | |
|---|---|
| Arpadites szaboi | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ceratitida |
| Family: | †Trachyceratidae |
| Subfamily: | †Arpaditinae |
| Genus: | †Arpadites Mojsisovic, 1879 |
The genotype Arpadites arpadis came from the upper Middle Triassic (Ladinian) of the Alps in Europe.
Description edit
Arpadites, named by Mojsisovics, 1879, is characterized by a compressed, evolute, discoidal shell with radial or faintly sigmoidal ribs; smooth, continuous keels; umbilical tubercles, with or without lateral and ventrolateral tubercles as well; and ceratitic sutures with two lateral lobes (on either side).
Gallery edit
- Arpadites arpadis
- Arpadites szaboi
- Arpadites szaboi
- Arpadites telleri
References edit
- ^ M. Urlichs. 2017. Revision of some stratigraphically relevant ammonoids from the Cassian Formation (latest Ladinian-Early Carnian, Triassic) of St. Cassian (Dolomites, Italy). Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 283:173-204
- ^ Francis Newlands Johnston. 1941. Trias at New Pass, Nevada (New Lower Karnic Ammonoids). Journal of Paleontology Vol. 15, No. 5 (Sep., 1941), pp. 447-491 (53 pages).
Further reading edit
- Arkel et al., 1962. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology Part L, Mollusca 4, R.C. Moore (ed)
- N. Fantini Sestini. 1994. The Ladinian ammonoids from the Calcare di Esino of Val Parina (Bergamasc Alps, Northern Italy). Part. 1. Rivista Italiana di Paleontologia e Stratigrafia 100(2):227-284
- J. J., J.r. Sepkoski. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560