THECODONTIA is a historic definition for “socket teeth” reptiles - while now obsolete, this former clade describes many of the animals which I reconstruct, and are featured on this website! Hi, my name’s Dan Folkes. I’m a Palaeontology and Evolution grad student having studied an integrated Master’s at Bristol University.

From an evolutionary systematic point of view, the Thecodonts are a valid taxon of Triassic archosaurs. They include both the ancestors of dinosaurs and other animals, and a number of independent evolutionary lines that are important in their own right. And they dominated the …

thecodontian, archaic term formerly applied to any member of a group of primitive archosaurs (“ruling reptiles”) thought to include the ancestral stock of all other archosaurs, including birds, dinosaurs, pterosaurs (extinct flying reptiles), and crocodiles. The …

If the base of the tooth is not embedded in a bony socket, the dentition is described as acrodont. If the base of the tooth is embedded in a bony socket (alveolus), it is instead called a “root,” and the dentition is described as thecodont, which is the condition of mammals.

2018年3月14日 · Thecodont. The thecodont tooth has a relatively long cylindrical base set in a deep bony socket (Fig 1). All mammals exhibit thecodonty, however crocodilians are the only living reptiles with thecodont dentition (Table 1). Thecodont teeth have deep attachments, allowing teeth to withstand strong forces.

Archosauria (the "ruling reptiles") is a major group of diapsids, differentiated from the other diapsids by the presence of single openings in each side of the skull, in front of the eyes (antorbital fenestrae), among other characteristics.

Thecodont taxa display two different types of tooth replacement. The first occurs in modern mammals and crocodilians, wherein a replacement tooth develops from a dental lamina that is dissociated from the oral epithelium and is buried deep within the jaw, almost underneath the functional teeth ( Gordon Edmund, Edmund & Museum, 1960 ).

Thecodont type dentition is the rule among mammals. In this condition, the teeth are lodged in bony sockets or alveoli of the jaw bone and capillaries and nerves enter the pulp cavity through the open tips of the hollow roots (Fig. 10.128).

Thecodontia (meaning 'socket-teeth'), now considered an obsolete taxonomic grouping, was formerly used to describe a diverse "order" of early archosaurian reptiles that first appeared in the latest Permian period and flourished until the end of the Triassic period.

1982年1月1日 · The basis of this classificatory essay includes a reconsideration of the Thecodontia-Crocodylia boundaries, an evaluation of the temporal region of the thecodont skull, and some observations on the carpus, pelvis and tarsus of the group.