Definitions for anapsid
anap·sid

Princeton's WordNetRate this definition:0.0 / 0 votes

1. anapsid, anapsid reptilenoun

   primitive reptile having no opening in the temporal region of the skull; all extinct except turtles

WiktionaryRate this definition:0.0 / 0 votes

1. anapsidnoun

   Any amniote whose skull does not have openings near the temples.

2. Etymology: From ἀν- + ἁψίς

WikipediaRate this definition:0.0 / 0 votes

1. Anapsid

   An anapsid is an amniote whose skull lacks one or more skull openings (fenestra, or fossae) near the temples. Traditionally, the Anapsida are the most primitive subclass of amniotes, the ancestral stock from which Synapsida and Diapsida evolved, making anapsids paraphyletic. It is however doubtful that all anapsids lack temporal fenestra as a primitive trait, and that all the groups traditionally seen as anapsids truly lacked fenestra.

ChatGPTRate this definition:0.0 / 0 votes

1. anapsid

   An anapsid is a type of amniote, a category of vertebrate animals which also include mammals, birds, and reptiles. They are distinguished by their skull, which lacks the temporal fenestrae (openings) found in other amniotes. The most well-known anapsids are the now-extinct group of primitive reptiles and turtles. The term 'anapsid' comes from Greek, meaning 'without an arch'.

WikidataRate this definition:0.0 / 0 votes

1. Anapsid

   An anapsid is an amniote whose skull does not have openings near the temples. While "anapsid reptiles" or "anapsida" were traditionally spoken of as if they were a monophyletic group, it has been suggested that several groups of reptiles that had anapsid skulls may be only distantly related. Scientists still debate the exact relationship between the basal reptiles which first appeared in the late Carboniferous, the various Permian reptiles which had anapsid skulls, and the Testudines. However, it was later suggested the anapsid-like turtle skull may be due to reversion rather than to anapsid descent. The majority of modern paleontologists believe the Testudines are descended from diapsid reptiles which lost their temporal fenestrae. More recent morphological phylogenetic studies with this in mind placed turtles firmly within diapsids, some place turtles as a sister group to extant archosaurs or, more commonly within Lepidosauromorpha. Some modern paleontologists still believe that Testudines are the only surviving branch of this ancient evolutionary grade, which includes groups such as procolophonids, millerettids, and pareiasaurs, although that view is not generally accepted.

Anagrams for anapsid »

1. sapinda

How to pronounce anapsid?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say anapsid in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of anapsid in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of anapsid in Pythagorean Numerology is: 1

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=anapsid
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Anapsid
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Anapsid
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=anapsid