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The family, as well as its sole genus Malacobdella, is characterized by a posterior ventral sucker and a proboscis lacking a stylet. [2] As in other Hoplonemertea, the lateral longitudinal nerve cord is located internal to the body wall muscles, in the mesenchyme .
A few have relatively short but wide bodies, for example Malacobdella grossa is up to 3.5 centimetres (1.4 in) long and 1 centimetre (0.39 in) wide, [9] [18] and some of these are much less stretchy. [17] Smaller nemerteans are approximately cylindrical, but larger species are flattened dorso-ventrally. Many have visible patterns in various ...
The final major cold spell occurred from 25,000 to 18,000 years ago and is known as the Last Glacial Maximum when the Fenno-Scandinavian ice sheet covered much of northern Europe while the Alpine ice sheet occupied significant parts of central-southern Europe. However, there were several less cold periods after this.
The Ottoman wars in Europe marked an essential part of the history of the continent. The Holy Roman Empire was a limited elective monarchy composed of hundreds of state-like entities . A key 15th-century development was the advent of the movable type of printing press circa 1439 in Mainz, [ 51 ] building upon the impetus provided by the prior ...
Columnar jointing, remains of volcanic eruptions that can be seen in the cliffs south of the island.. The island Grosa and the islet of Farallón, as well as the islands of the Mar Menor, are remains of the Quaternary volcanism that took place in the whole area of Campo de Cartagena between 7.2 and 6.6 million years ago, during the Miocene.
This quite basically presents the known world in its real geographic appearance which is visible in the so-called Vatican Map of Isidor (776), the world maps of Beatus of Liebana’s Commentary on the Apocalypse of St John (8th century), the Anglo-Saxon Map (ca. 1000), the Sawley map, the Psalter map, or the large mappae mundi of the 13th ...
Physical map of Southeast Europe. The prehistory of Southeast Europe, defined roughly as the territory of the wider Southeast Europe (including the territories of the modern countries of Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Greece, Kosovo, Moldova, Montenegro, North Macedonia, Romania, Serbia, Slovenia, and European Turkey) covers the period from the Upper Paleolithic ...
Herodotus (430 BC) had only vaguely heard of the Cassiterides, "from which we are said to have our tin", but did not discount the islands as legendary. [2] Later writers—Posidonius, Diodorus Siculus, [3] Strabo [4] and others—call them smallish islands off ("some way off," Strabo says) the northwest coast of the Iberian Peninsula, which contained tin mines or, according to Strabo, tin and ...