Pachyceras
Pachyceras is a genus of perisphinctoid ammonites from the Middle Jurassic, upper Callovian stage, and is the type genus for the family Pachyceratidae. The shell is involute, subglobular, with a deep umbilicus and flattened flanks that slope toward a more narrowly rounded venter, and covered by low, widely spaced ribs.
| Pachyceras | |
|---|---|
 | |
| Fossil of Pachyceras lalandeanum from Calvados (France), on display at Galerie de paléontologie et d'anatomie comparée in Paris | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Subclass: | |
| Order: | |
| Superfamily: | |
| Family: | |
| Genus: | Pachyceras Bayle, 1878 |
| Species [2] | |
| |
Distribution
Jurassic deposits of Egypt, France, India, Saudi Arabia and Switzerland.[2]
gollark: Yes, electron bad.
gollark: You can also try and package everything into one megaquery, but that is bad and you shouldn't do it.
gollark: That is true.
gollark: > yes, but sql queries are very fast and well-optimised for that reasonIt's quite easy to foolishly run them sequentially, and then you have to deal with a ton of latency from connecting to your database.
gollark: Although what you can do nowadays is package it as a webview thing (not electron, there are saner things to use the system webview like this: https://crates.io/crates/web_view) and have a bit of native code for the out-of-sandbox parts. Although you drop some nice things that way.
References
- Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Retrieved 2017-10-18.
- Paleobiology Database - Pachyceras. 2017-10-18.
- D. T. Donovan, J. H. Callomon and M. K. Howarth 1981. Classification of the Jurassic Ammonitina; The Ammonoidea. The Systematics Association special volume no. 18
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.