galeaspid
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
13
Scrabble Score
9
Letters
2
Syllables
8
Unique Chars
Meaning
noun
Any of the extinct class †Galeaspida of jawless fish.
Example Sentences
- "An interesting example is provided by the “polybranchic” condition in extinct jawless vertebrate taxa, which display an extremely large number of gills, such as some early Devonian galeaspids and the late Devonian euphaneropids."
- "The jawless fish (termed ‘agnathans’) evolved and flourished during the Silurian Period (435-410 million years ago). These included bizarre forms with weird bony head armours, such as the bizarre galeaspids from China and the pituriaspids from Australia."
- "Some 70 million years after this particular galeaspid swam the oceans, fish made another evolutionary leap when they took to life on land."
Etymology
From Latin galea (“helmet”) + aspis (from Ancient Greek ἀσπίς (aspís, “round shield”)); compare translingual †Galeaspida.
Origin
- Source language: Latin