Temporal range: Late Cretaceous-Paleogene 94.3–55.8 Ma
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Micraster antious Cretaceous (Opakua)
Scientific classification
Kingdom:
Animalia
Phylum:
Echinodermata
Class:
Echinoidea
Subclass:
Euechinoidea
Order:
Spatangoida
Genus:
†Micraster
Agassiz, 1836
Micraster is an extinct genus of echinoids from the Late Cretaceous to the early Eocene. Its remains have been found in Africa, Antarctica, Europe, and North America. Micraster was an infaunal echinoid living in a burrow below the sediment surface. The test is clearly bilateral and there is a deep anterior groove to take in water containing organic particles to the mouth. The tube feet keep a supply of nutrient-laden water moving into the burrow. The anus has a waste tube behind it.
Micraster is an extinct genus of echinoids from the Late Cretaceous to the early Eocene. Its remains have been found in Africa, Antarctica, Europe, and...
Antrocaryon micraster is a species of flowering plant in the cashew family, Anacardiaceae. It is native to tropical Africa, where it occurs in Cameroon...
Asteropeia micraster is a species of plant in the Asteropeiaceae family. It is endemic to Madagascar. The plant's natural habitat is sandy shores. Randriantafika...
(the Atelostomata) during the early Jurassic. Some echinoids, such as Micraster in the chalk of the Cretaceous period, serve as zone or index fossils...
creatures which are found as flint fossils, especially the internal moulds of Micraster echinoids. Several different ocean floor species such as brachiopods,...
brachiopods Terebratulina and Gibbithyris, the echinoids Sternotaxis, Micraster, Echinocorys, and Tylocidaris, the crinoid Marsupites, and the small sponge...
"One steps out of line—A "modern" Micraster species (Echinoidea, Spatangoida) with some old-fashioned look, Micraster ernsti sp. nov. from the Campanian...
kanukaneus M. koae M. kroumirensis M. limosus M. masonii M. meridionalis M. micraster M. midnapurensis M. minutus M. nigripes M. oreades - fairy ring mushroom...
†Micrabacia †Micrabacia arkansasensis – type locality for species †Micraster †Micraster americanus Micropora – tentative report Contents A B C D E F G H...
Marine Species. Nichols, D. (1959). "Changes in the chalk heart-urchin Micraster Interpreted in relation to living forms". Philosophical Transactions of...
Oegophiurida and the family Encrinasteridae. The type species is K. spinosus. Micraster quebrada Sp. nov Schlüter et al. Late Cretaceous (Santonian) Spain A...
Gomon, 1983 Eustomias metamelas J. R. Gomon & Gibbs, 1985 Eustomias micraster A. E. Parr, 1927 Eustomias micropterygius A. E. Parr, 1927 Eustomias minimus...
PMID 29855566. Nils Schlüter; Frank Wiese (2018). "The variable echinoid Micraster woodi sp. nov. – Trait variability patterns in a taxonomic nightmare"...
Taxonomy, Distribution, and Evolution of the Upper Cretaceous Echinoid Micraster". Royal Holloway University of London. Surlyk, Finn; Sørensen, Anne Mehlin...
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