Detailed biostratigraphic scales as based on the palaeobiogenetical approach (an example of the Upper Bajocian – Lower Bathonian ostracod scale of the Russian Platform)

Two new species of ostracods of the family Progonocytheridae Sylvester-Bradley Camptocythere (C.) lateres Tesakova et Shurupova, sp. nov. and C. (C.) angustius Tesakova et Shurupova, sp. nov. from the Michalskii and Besnosovi ammonite zones (Upper Bajocian – Lower Bathonian, Middle Jurassic) of the Sokur section (Saratov) are described. The changes in ontogenesis in the phylogeny of Camptocythere (C.) lateres Tesakova et Shurupova in the stratigraphical interval corresponding to the Palaeocytheridea kalandadzei ostracod Zone, and especially to the beds with C. (C.) lateres, have been studied. The levels of the change in the predominant type of sculpture (corresponding to evolutionary boundaries) are recognized in the sculpture development among the adult representatives of the species in its phylogeny. This palaeobiogenetic (heterochrony) approach allows subdivision of the beds with C. (C.) lateres into three stratigrapical intervals characterized by changes in the type of sculpture.

Download Full-text

New fossil wasps (Hymenoptera, Apocrita) from the Middle Jurassic of China

Insect Systematics & Evolution ◽

10.1163/1876312x-45032127 ◽

2015 ◽

Vol 46 (5) ◽

pp. 471-484 ◽

Cited By ~ 3

Author(s):

Menglun Wang ◽

Longfeng Li ◽

Chungkun Shih

Keyword(s):

New Species ◽

Middle Jurassic ◽

Inner Mongolia ◽

Interspecific Difference ◽

New Information ◽

The Family ◽

Two New Species ◽

Jiulongshan Formation ◽

Basal Position ◽

Taxonomic Keys

Two new species,Symphytopterus gracilersp. nov. of the family Ephialtitidae andPraeaulacus byssinussp. nov. of the family Praeaulacidae, are described and illustrated from the late Middle Jurassic of Jiulongshan Formation at Daohugou in Inner Mongolia, China. Based on new information onS. gracilersp. nov. andP. byssinussp. nov., two taxonomic keys to the known species of generaSymphytopterusandPraeaulacusare provided. By comparing the wings ofSymphytopterus, we find that the change of the veins length is the main interspecific difference andS. liasinusmay occupy the most basal position inSymphytopterus.

Download Full-text

The first discovery of fossil rhopalids (Heteroptera: Coreoidea) from Middle Jurassic of Inner Mongolia, China

Zootaxa ◽

10.11646/zootaxa.1269.1.5 ◽

2006 ◽

Vol 1269 (1) ◽

pp. 57 ◽

Cited By ~ 12

Author(s):

YUNZHI YAO ◽

WANZHI CAI ◽

DONG REN

Keyword(s):

New Species ◽

Middle Jurassic ◽

Inner Mongolia ◽

Fossil Record ◽

New Genera ◽

The Family ◽

The World ◽

Two New Species ◽

Jiulongshan Formation

Two new genera and two new species of fossil rhopalid, Miracorizus punctatus gen. & sp. nov. and Longiclavula calvata gen. & sp. nov., are described and illustrated. They were collected from the Middle Jurassic Jiulongshan Formation of Inner Mongolia, China. This is the earliest fossil record of the family Rhopalidae in the world.

Download Full-text

New archidermapteran earwigs (Dermaptera) from the Middle Jurassic of Inner Mongolia, China

ZooKeys ◽

10.3897/zookeys.1065.72720 ◽

2021 ◽

Vol 1065 ◽

pp. 125-139

Author(s):

Shurong Xiong ◽

Michael S. Engel ◽

Lifang Xiao ◽

Dong Ren

Keyword(s):

New Species ◽

Middle Jurassic ◽

Inner Mongolia ◽

The Family ◽

Two New Species

Two new species of Archidermaptera are described and figured from the Middle Jurassic Jiulonghsan Formation of Daohugou, Inner Mongolia, China. Aneuroderma oiodesgen. & sp. nov. is described in the family Protodiplatyidae and Sinopalaeodermata concavumsp. nov. is established in the family Dermapteridae. Both new species share the typical characters of the extinct suborder Archidermaptera (e.g., pentamerous metatarsi, filiform and multimerous cerci, externalized ovipositor). Aneurodermagen. nov. is compared with other genera of the Protodiplatyidae, while S. concavumsp. nov. allows us to emend the diagnosis of the genus Sinopalaeodermata. We briefly discuss the diversity of Archidermaptera and challenges to understanding relationships among this mid-Mesozoic diversity.

Download Full-text

The oldest representatives of the family Coccinellidae (Coleoptera: Polyphaga) from the Lowermost Eocene Oise amber (France)

Zoosystematica Rossica ◽

10.31610/zsr/2012.21.1.131 ◽

2012 ◽

Vol 21 (1) ◽

pp. 131-144 ◽

Cited By ~ 7

Author(s):

A.G. Kirejtshuk ◽

A. Nel

Keyword(s):

New Species ◽

Short Review ◽

The Family ◽

Two New Species ◽

Fossil Records ◽

One New Species ◽

Eocene Amber

In the paper two new species of the genus Rhyzobius Stephens, 1829 (R. antiquus sp. nov. and R. gratiosus sp. nov.) and one new species of the genus Nephus Mulsant 1846 (N. subcircularis sp. nov. without a certain subgeneric placement) from the Lowermost Eocene amber of Oise are described. A short review of known fossil records of the family Coccinellidae is given.

Download Full-text

Two new species of the genus Syngastes (Copepoda, Harpacticoida, Tegastidae) from South Korea

Crustaceana ◽

10.1163/15685403-00003533 ◽

2016 ◽

Vol 89 (4) ◽

pp. 431-458 ◽

Cited By ~ 1

Author(s):

Jong Guk Kim ◽

Tae Won Jung ◽

Jong Guk Kim ◽

Tae Won Jung ◽

...

Keyword(s):

New Species ◽

South Korea ◽

First Record ◽

Exopodal Segment ◽

Key To Species ◽

Korean Waters ◽

The Family ◽

Two New Species ◽

Almost All

Herein two new species of the genusSyngastesMonard, 1924 are described from South Korea, with detailed descriptions and illustrations. Both new copepods,Syngastesmulticavussp. nov. andS. pseudofoveatussp. nov., have two inner setae on the first exopodal segment of P2 and P3.Syngastesmulticavussp. nov. most closely resemblesS. gibbosusBartsch, 1999 reported from Australia, as they both have a five-segmented antennule in the female. However,Syngastesmulticavussp. nov. has a rounded body outline instead of the gibbose outline observed inS. gibbosus.Syngastespseudofoveatussp. nov. resemblesS. foveatusBartsch, 1994 in almost all aspects. However, they differ clearly in the number of setae on the first exopodal segment of P2 and P3. We also provide a key to species of the genusSyngastesworldwide. The present study is the first record of the family Tegastidae in Korean waters.

Download Full-text

A New Axymyiid Genus with Two New Species from the Middle Jurassic of China (Diptera: Nematocera: Axymyiidae)

Acta Geologica Sinica - English Edition ◽

10.1111/1755-6724.12123 ◽

2013 ◽

Vol 87 (5) ◽

pp. 1228-1234 ◽

Cited By ~ 3

Author(s):

SHI Guifeng ◽

ZHU Yan ◽

SHIH Chungkun ◽

REN Dong

Keyword(s):

New Species ◽

Middle Jurassic ◽

Two New Species

Download Full-text

Two new species ofSyllis(Polychaeta: Syllidae) from South Africa, one of them viviparous, with remarks on larval development and vivipary

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315413001926 ◽

2014 ◽

Vol 94 (4) ◽

pp. 729-746 ◽

Cited By ~ 6

Author(s):

Carol Simon ◽

Guillermo San Martín ◽

Georgina Robinson

Keyword(s):

South Africa ◽

New Species ◽

South African ◽

The Other ◽

Coralline Algae ◽

Colour Pattern ◽

The Family ◽

Two New Species ◽

Haliotis Midae ◽

Characteristic Colour

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.

Download Full-text