Definition of Atrypids. Meaning of Atrypids. Synonyms of Atrypids

- Atrypa is a genus of brachiopod with round to short egg-shaped s**** covered with many fine radial ridges (or costae). Growth lines form perpendicular...
- their range afterwards. The most abundant brachiopods were atrypids and pentamerides; atrypids were the first to recover and rediversify in the Rhuddanian...
- Leighton, Lindsey R.; Polly, P. David (1 October 2011). "Influence of atrypid morphological shape on Devonian episkeletobiont ****emblages from the lower...
- and first winged insects (palaeoptera and neoptera). Strophomenid and atrypid brachiopods, rugose and tabulate corals, and crinoids are all abundant...
- Cincinnatian (Upper Ordovician) of southeastern Indiana Zygospira modesta, atrypid brachiopods, preserved in their original positions on a trepostome bryozoan...
- or foramen, located in the beak. Terebratulids may have evolved from Atrypids during the early or Middle Silurian. Early genera were almost circular...
- seems to have evolved from pentamerids, and in turn gave rise to the first atrypids and athyrids, both of which are characterized by the development of a complex...
- event. The surviving taxa show morphological trends through the event. Atrypid and strophomenid brachiopods became rarer, replaced in many niches by productids...
- Askerina is an extinct genus of atrypid brachiopods from subfamily Atrypinae that lived in end-Ordovician (Hirnantian) and Silurian (Aeronian). The type...
- Zygospira modesta, atrypid brachiopods, preserved in their original positions on a trepostome bryozoan; Cincinnatian (Upper Ordovician) of southeastern...