Results 121 to 130 of about 2,938 (213)

Early large borings from a hardground of Floian-Dapingian age (Early and Middle Ordovician) in northeastern Estonia (Baltica)

Carnets de Géologie, 2010
Large plug- or slightly amphora-shaped borings have been found in the hardground marking the boundary between Early and Middle Ordovician rocks in northeastern Estonia. These borings cut large bioclasts of the trilobite Megistaspis and cannot be assigned
Vinn Olev, Wilson Mark A.
doaj  

Trunk segmentation of the Early Cambrian eodiscid trilobite Neocobboldia chinlinica

, 2008
The early Cambrian eodiscid Neocobboldia chinlinica reportedly displays intraspecific variation in the development of segmentation in the pygidium in which some, but apparently not all, meraspid specimens possessed an additional segment when compared to ...
FUSCO, GIUSEPPE, HONG P. S, HUGHES N. C
core  

Long-term clade-wide shifts in trilobite segment number and allocation during the Palaeozoic. [PDF]

Proc Biol Sci, 2022
Hopkins MJ, To R.
europepmc   +1 more source

Geo Fossils-I: A synthetic dataset of 2D fossil images for computer vision applications on geology. [PDF]

Data Brief, 2023
Nathanail A.
europepmc   +1 more source

The trilobite assemblage of the Declivolithus Fauna (lower Katian, Ordovician) of Morocco: a review with new data

[EN] Intense commercial exploitation of fossils in the famous El Qaid Errami area in the last 20 years has led to the discovery of the interesting Declivolithus Fauna in the Moroccan Anti-Atlas.
Gutiérrez-Marco, J. C., Rábano, Isabel, Gutiérrez Marco, Juan Carlos, Pereira, Sofía   +3 more
core   +1 more source

Episodic body size variations of early Paleozoic trilobites associated with marine redox changes. [PDF]

Sci Adv
Sun Z, Zhao F, Zeng H, Erwin DH, Zhu M.
europepmc   +1 more source

Profile of Chris H. Greene. [PDF]

Proc Natl Acad Sci U S A
Ravindran S.
europepmc   +1 more source

Taphonomic bias of hydrothermal silicification in biodiversity patterns of Cambrian shelly pavements from the Iberian Chains, NE Spain. [PDF]

Sci Rep
Martínez-Benítez B, Esteve J, Álvaro JJ.   +2 more
europepmc   +1 more source

OBSERVATION OF CS TRILOBITE MOLECULES WITH KILO-DEBYE MOLECULAR FRAME PERMANENT ELECTRIC DIPOLE MOMENTS [PDF]

Made available in DSpace on 2016-01-05T20:05:01Z (GMT). No. of bitstreams: 3 868.pdf: 17383 bytes, checksum: a79a33bc2d8e2639792a2124c1096c04 (MD5) 318556.pdf: 6034189 bytes, checksum: 8ad192adb1331726d9688e1d8018531d (MD5) license.txt: 4813 bytes ...
Shaffer, James P
core  

The modular organization of the trilobite head in Ceraurus pleurexanthemus

: The trilobite head is a complex structure composed of multiple fused segments which served several functions. Modelling the head as being constituted of modules, or subunits that vary semi‐independently from each other, can reveal underlying patterns ...
Hopkins, Melanie J, Vargas‐Parra, Ernesto E   +1 more
core   +1 more source