Definition of Pteraspidids. Meaning of Pteraspidids. Synonyms of Pteraspidids

Here you will find one or more explanations in English for the word Pteraspidids. Also in the bottom left of the page several parts of wikipedia pages related to the word Pteraspidids and, of course, Pteraspidids synonyms and on the right images related to the word Pteraspidids.

Definition of Pteraspidids

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Meaning of Pteraspidids from wikipedia

- Devonian-aged family that contains the stereotypical, torpedo-shaped pteraspidids, such as the type genus, Pteraspis, and its close relatives Errivaspis...
- series of plates diagnostic of pteraspidids, and the growth habits of anchipteraspidids are diagnostic of pteraspidids, and not of cyathaspidids. The...
- protaspidids are actually highly derived pteraspidids, and that the anchipteraspidids, the most primitive of pteraspidids, are the sister-group of the psammosteids...
- Rhinopteraspis is an extinct genus of pteraspidid heterostracan agnathan. "Rhinopteraspis cornubica (McCoy), with notes on the classification and evolution...
- Athenaegis), is regarded as being a sister group of the Cyathaspids and Pteraspidids, while the Early Devonian Lepidaspis is regarded as being incertae sedis...
- strata. Protopteraspidids were once thought to represent a taxon of basal pteraspidids (hence "proto") but recent evaluations demonstrate that Protopteraspididae...
- holotype. Elliott, David K., and Robert R. Ilyes. "New Early Devonian pteraspidids (Agnatha, Heterostraci) from Death Valley National Monument, southeastern...
- Protaspis is an extinct genus of pteraspidid heterostracan agnathan which lived during the Early Devonian of the United States, with fossils found in...
- 'wing' or 'fin' and Gr****: ἀσπίς aspís 'shield') is an extinct genus of pteraspidid heterostracan jawless fish. It lived from the Lochkovian to Eifelian...
-  63–69. Elliott, David K., and Robert R. Ilyes. "New Early Devonian pteraspidids (Agnatha, Heterostraci) from Death Valley National Monument, southeastern...